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- 1. Manual de PHP Stig Sæther Bakken Alexander Aulbach Egon Schmid Jim Winstead Lars Torben Wilson Rasmus Lerdorf Zeev Suraski Andrei Zmievski Jouni Ahto Editado por Rafael Martínez
- 3. Manual de PHP por Stig Sæther Bakken, Alexander Aulbach, Egon Schmid, Jim Winstead, Lars Torben Wilson, Rasmus Lerdorf, Zeev Suraski, Andrei Zmievski, y Jouni Ahto Editado por Rafael Martínez Publicado 15-04-2001 Copyright © 1997, 1998, 1999, 2000, 2001 por por el Grupo de documentación de PHP Copyright Este manual es © Copyright 1997, 1998, 1999, 2000, 2001 del Grupo de documentación de PHP. Los miembros de este grupo se encuentran listados en la primera página de este manual. Este manual puede ser redistribuido bajo los términos de la "GNU General Public License"publicada por la "Free Software Foundation"; tanto bajo la versión 2 de esta licencia o bajo versiones posteriores.
- 5. Tabla de contenidos Prefacio ..................................................................................................................................................................................41 Sobre este Manual.........................................................................................................................................................41 Sobre la traducción .......................................................................................................................................................41 I. Conceptos Básicos .............................................................................................................................................................43 1. Introducción ..............................................................................................................................................................43 Qué es PHP?........................................................................................................................................................45 Qué se puede hacer con PHP?.............................................................................................................................45 Corta historia de PHP..........................................................................................................................................45 2. Instalación .................................................................................................................................................................47 Bajándose la última versión ................................................................................................................................49 Instalación en sistemas UNIX.............................................................................................................................49 Instrucciones Rápidas de Instalación (Versión Módulo de Apache) .........................................................49 Configuración ............................................................................................................................................49 Módulo del Apache....................................................................................................................................50 Módulo fhttpd ............................................................................................................................................50 CGI version................................................................................................................................................50 Opciones de soporte para Base de Datos...................................................................................................50 Adabas D..........................................................................................................................................50 dBase................................................................................................................................................50 filePro ...............................................................................................................................................50 mSQL...............................................................................................................................................51 MySQL.............................................................................................................................................51 iODBC .............................................................................................................................................51 OpenLink ODBC .............................................................................................................................51 Oracle ...............................................................................................................................................51 PostgreSQL ......................................................................................................................................52 Solid .................................................................................................................................................52 Sybase ..............................................................................................................................................52 Sybase-CT........................................................................................................................................52 Velocis ..............................................................................................................................................52 Una librería a medida de ODBC......................................................................................................52 ODBC Unificado..............................................................................................................................53 LDAP ...............................................................................................................................................53 Otras opciones de configuración................................................................................................................53 –with-mcrypt=DIR ..........................................................................................................................53 –enable-sysvsem ..............................................................................................................................53 –enable-sysvshm ..............................................................................................................................53 –with-xml .........................................................................................................................................53 –enable-maintainer-mode.................................................................................................................54 –with-system-regex ..........................................................................................................................54 –with-config-file-path.......................................................................................................................54 –with-exec-dir ..................................................................................................................................54 –enable-debug ..................................................................................................................................54 –enable-safe-mode ...........................................................................................................................54 –enable-track-vars ............................................................................................................................55 –enable-magic-quotes ......................................................................................................................55 –enable-debugger .............................................................................................................................55 –enable-discard-path ........................................................................................................................55 –enable-bcmath ................................................................................................................................55 –enable-force-cgi-redirect ................................................................................................................55 –disable-short-tags ...........................................................................................................................56 –enable-url-includes.........................................................................................................................56 –disable-syntax-hl ............................................................................................................................56 5
- 6. CPPFLAGS y LDFLAGS ................................................................................................................56 Construyendo.............................................................................................................................................56 Probando....................................................................................................................................................56 Comprobando la velocidad ........................................................................................................................56 Instalación en sistemas Windows 95/98/NT .......................................................................................................57 Pasos Generales de Instalación ..................................................................................................................57 Windows 95/98/NT y PWS/IIS 3 ..............................................................................................................57 Windows NT e IIS 4 ..................................................................................................................................58 Windows 9x/NT y Apache 1.3.x................................................................................................................59 Omni HTTPd 2.0b1 para Windows ...........................................................................................................59 Módulos del PHP.......................................................................................................................................59 ¿Problemas? ........................................................................................................................................................60 Lea las PMF (FAQ)....................................................................................................................................60 Informes de error .......................................................................................................................................60 Otros problemas.........................................................................................................................................60 3. Configuración............................................................................................................................................................61 El archivo de configuración.................................................................................................................................63 Directivas Generales de Configuración .....................................................................................................63 Directivas de Configuración de Correo......................................................................................................66 Directivas de Configuración de Modo Seguro...........................................................................................66 Directivas de Configuración del Debugger................................................................................................67 Directivas de Carga de Extensiones...........................................................................................................67 Directivas de Configuración de MySQL....................................................................................................67 Directivas de Configuración de mSQL......................................................................................................67 Directivas de Configuración de Postgres ...................................................................................................68 SESAM Configuration Directives .............................................................................................................68 Directivas de Configuración de Sybase .....................................................................................................68 Directivas de Configuración de Sybase-CT...............................................................................................69 Directivas de Configuración de Informix ..................................................................................................69 Directivas de Configuración de Matemática BC .......................................................................................70 Directivas de Configuración de Capacidades de los Navegadores ............................................................70 Directivas Unificadas de Configuración de ODBC ...................................................................................70 4. Seguridad ..................................................................................................................................................................73 Binarios CGI .......................................................................................................................................................75 Posibles ataques .........................................................................................................................................75 Caso 1: solamente se sirven ficheros publicos...........................................................................................75 Caso 2: usando –enable-force-cgi-redirect ................................................................................................76 Caso 3: Usando doc_root or user_dir ........................................................................................................76 Caso 4: Analizador PHP fuera del arbol web. ...........................................................................................76 Modulo Apache ...................................................................................................................................................77 II. Referencia del Lenguaje..................................................................................................................................................79 5. Sintaxis básica...........................................................................................................................................................79 Saliendo de HTML..............................................................................................................................................81 Separación de instrucciones ................................................................................................................................81 Comentarios ........................................................................................................................................................81 6. Types .........................................................................................................................................................................83 Enteros.................................................................................................................................................................85 Números en punto flotante ..................................................................................................................................85 Cadenas ...............................................................................................................................................................85 Conversión de cadenas...............................................................................................................................87 Arrays ..................................................................................................................................................................87 Arrays unidimensionales ...........................................................................................................................87 Arrays Multidimensionales........................................................................................................................88 Objetos ................................................................................................................................................................89 Inicialización de Objetos ...........................................................................................................................89 6
- 7. Type juggling.......................................................................................................................................................90 Forzado de tipos.........................................................................................................................................90 7. Variables....................................................................................................................................................................93 Conceptos Básicos...............................................................................................................................................95 Variables predefinidas .........................................................................................................................................95 Variables de Apache ..................................................................................................................................96 Variables de entorno ..................................................................................................................................97 Variables de PHP .......................................................................................................................................97 Ambito de las variables .......................................................................................................................................98 Variables variables.............................................................................................................................................100 Variables externas a PHP...................................................................................................................................100 Formularios HTML (GET y POST) ........................................................................................................100 IMAGE SUBMIT variable names..................................................................................................101 Cookies HTTP .........................................................................................................................................101 Variables de entorno ................................................................................................................................102 Puntos en los nombres de variables de entrada........................................................................................102 Determinando los tipos de variables........................................................................................................102 8. Constantes ...............................................................................................................................................................103 9. Expresiones .............................................................................................................................................................107 10. Operadores ............................................................................................................................................................111 Operadores Aritméticos.....................................................................................................................................113 Operadores de Asignación ................................................................................................................................113 Operadores Bit a bit...........................................................................................................................................113 Operadores de Comparación .............................................................................................................................114 Operador de ejecución.......................................................................................................................................114 Operadores de Incremento/decremento.............................................................................................................115 Operadores Lógicos...........................................................................................................................................115 Precedencia de Operadores ...............................................................................................................................115 Operadores de Cadenas .....................................................................................................................................116 11. Estructuras de Control...........................................................................................................................................117 if.......................................................................................................................................................................119 else ..................................................................................................................................................................119 elseif..............................................................................................................................................................119 Sintaxis Alternativa de Estructuras de Control .................................................................................................120 while ................................................................................................................................................................120 do..while .......................................................................................................................................................121 for ....................................................................................................................................................................122 foreach............................................................................................................................................................123 break ................................................................................................................................................................124 continue..........................................................................................................................................................125 switch..............................................................................................................................................................125 require()............................................................................................................................................................127 include()............................................................................................................................................................128 require_once()..................................................................................................................................................131 include_once() ..................................................................................................................................................133 12. Funciones ..............................................................................................................................................................135 Funciones definidas por el usuario ....................................................................................................................137 Parámetros de las funciones ..............................................................................................................................137 Pasar parámetros por referencia...............................................................................................................137 Parámetros por defecto ............................................................................................................................138 Lista de longitud variable de parámetros.................................................................................................139 Devolver valores................................................................................................................................................139 old_function.................................................................................................................................................139 Funciones variable.............................................................................................................................................139 13. Clases y Objetos....................................................................................................................................................141 class ................................................................................................................................................................143 7
- 8. 14. References Explained............................................................................................................................................145 What are References..........................................................................................................................................147 What do References ..........................................................................................................................................147 What aren’t References .....................................................................................................................................147 Returning References ........................................................................................................................................147 Unsetting References.........................................................................................................................................148 Spotting the Reference ......................................................................................................................................148 global References..................................................................................................................................148 $this.......................................................................................................................................................148 III. Características..............................................................................................................................................................149 15. Manejando errores ................................................................................................................................................149 16. Creando imágenes GIF .........................................................................................................................................153 17. Autentificación HTTP con PHP............................................................................................................................157 18. Cookies .................................................................................................................................................................161 19. El envío de archivos ..............................................................................................................................................165 Envío de archivos con el método POST............................................................................................................167 Errores comunes................................................................................................................................................167 Envío de más de un archivo...............................................................................................................................167 Soporte del método PUT...................................................................................................................................168 20. Usando archivos remotos ......................................................................................................................................171 21. Manejando conexiones..........................................................................................................................................175 22. Conexiones persistentes a bases de datos .............................................................................................................179 IV. Referencia de las Funciones ........................................................................................................................................183 I. Funciones específicas de Apache ............................................................................................................................183 apache_lookup_uri ............................................................................................................................................185 apache_note.......................................................................................................................................................185 getallheaders......................................................................................................................................................185 virtual ................................................................................................................................................................186 II. Funciones de matrices ............................................................................................................................................187 array...................................................................................................................................................................189 array_count_values............................................................................................................................................189 array_flip ...........................................................................................................................................................189 array_keys .........................................................................................................................................................190 array_merge.......................................................................................................................................................190 array_pad...........................................................................................................................................................191 array_pop...........................................................................................................................................................191 array_push .........................................................................................................................................................192 array_reverse .....................................................................................................................................................192 array_shift..........................................................................................................................................................193 array_slice .........................................................................................................................................................193 array_splice .......................................................................................................................................................194 array_unshift......................................................................................................................................................195 array_values.......................................................................................................................................................195 array_walk .........................................................................................................................................................196 arsort..................................................................................................................................................................196 asort ...................................................................................................................................................................197 compact .............................................................................................................................................................197 count ..................................................................................................................................................................198 current................................................................................................................................................................198 each....................................................................................................................................................................199 end .....................................................................................................................................................................200 extract ................................................................................................................................................................200 in_array..............................................................................................................................................................201 key .....................................................................................................................................................................201 krsort..................................................................................................................................................................202 8
- 9. ksort ...................................................................................................................................................................202 list ......................................................................................................................................................................202 next ....................................................................................................................................................................203 pos .....................................................................................................................................................................203 prev....................................................................................................................................................................204 rango..................................................................................................................................................................204 reset ...................................................................................................................................................................204 rsort....................................................................................................................................................................204 shuffle ................................................................................................................................................................205 sizeof .................................................................................................................................................................205 sort .....................................................................................................................................................................205 uasort .................................................................................................................................................................206 uksort.................................................................................................................................................................206 usort ...................................................................................................................................................................207 III. Funciones Ortográficas .........................................................................................................................................209 aspell_new.........................................................................................................................................................211 aspell_check ......................................................................................................................................................211 aspell_check-raw...............................................................................................................................................211 aspell_suggest....................................................................................................................................................212 IV. Funciones matemáticas de precisión arbitraria.....................................................................................................213 bcadd .................................................................................................................................................................215 bccomp ..............................................................................................................................................................215 bcdiv ..................................................................................................................................................................215 bcmod................................................................................................................................................................215 bcmul.................................................................................................................................................................215 bcpow ................................................................................................................................................................216 bcscale ...............................................................................................................................................................216 bcsqrt .................................................................................................................................................................216 bcsub..................................................................................................................................................................216 V. Bzip2 Compression Functions ...............................................................................................................................217 bzclose...............................................................................................................................................................219 bzcompress ........................................................................................................................................................219 bzdecompress ....................................................................................................................................................219 bzerrno...............................................................................................................................................................220 bzerror ...............................................................................................................................................................220 bzerrstr...............................................................................................................................................................220 bzflush ...............................................................................................................................................................221 bzopen ...............................................................................................................................................................221 bzread ................................................................................................................................................................221 bzwrite...............................................................................................................................................................222 VI. Funciones de calendario .......................................................................................................................................223 JDToGregorian ..................................................................................................................................................225 GregorianToJD ..................................................................................................................................................225 JDToJulian.........................................................................................................................................................225 JulianToJD.........................................................................................................................................................225 JDToJewish........................................................................................................................................................226 JewishToJD........................................................................................................................................................226 JDToFrench .......................................................................................................................................................226 FrenchToJD .......................................................................................................................................................226 JDMonthName ..................................................................................................................................................226 JDDayOfWeek...................................................................................................................................................227 easter_date .........................................................................................................................................................227 easter_days ........................................................................................................................................................228 VII. CCVS API Functions ..........................................................................................................................................229 231 VIII. soporte de las funciones COM para Windows...................................................................................................233 9
- 10. com_load ...........................................................................................................................................................235 com_invoke .......................................................................................................................................................235 com_propget......................................................................................................................................................235 com_get .............................................................................................................................................................235 com_propput......................................................................................................................................................235 com_propset ......................................................................................................................................................235 com_set..............................................................................................................................................................235 IX. Funciones de Clases/Objectos ..............................................................................................................................237 get_class_methods.............................................................................................................................................239 get_class_vars....................................................................................................................................................239 get_object_vars..................................................................................................................................................239 method_exists....................................................................................................................................................239 X. Funciones de ClibPDF ...........................................................................................................................................241 cpdf_global_set_document_limits ....................................................................................................................245 cpdf_set_creator ................................................................................................................................................245 cpdf_set_title .....................................................................................................................................................245 cpdf_set_subject ................................................................................................................................................245 cpdf_set_keywords ............................................................................................................................................245 cpdf_open ..........................................................................................................................................................246 cpdf_close..........................................................................................................................................................246 cpdf_page_init...................................................................................................................................................246 cpdf_finalize_page ............................................................................................................................................246 cpdf_finalize ......................................................................................................................................................247 cpdf_output_buffer ............................................................................................................................................247 cpdf_save_to_file...............................................................................................................................................247 cpdf_set_current_page ......................................................................................................................................247 cpdf_begin_text .................................................................................................................................................248 cpdf_end_text ....................................................................................................................................................248 cpdf_show .........................................................................................................................................................248 cpdf_show_xy ...................................................................................................................................................248 cpdf_text............................................................................................................................................................249 cpdf_set_font.....................................................................................................................................................249 cpdf_set_leading................................................................................................................................................249 cpdf_set_text_rendering ....................................................................................................................................250 cpdf_set_horiz_scaling......................................................................................................................................250 cpdf_set_text_rise..............................................................................................................................................250 cpdf_set_text_matrix .........................................................................................................................................250 cpdf_set_text_pos..............................................................................................................................................250 cpdf_set_char_spacing ......................................................................................................................................251 cpdf_set_word_spacing .....................................................................................................................................251 cpdf_continue_text ............................................................................................................................................251 cpdf_stringwidth................................................................................................................................................251 cpdf_save...........................................................................................................................................................251 cpdf_restore.......................................................................................................................................................252 cpdf_translate ....................................................................................................................................................252 cpdf_scale..........................................................................................................................................................252 cpdf_rotate.........................................................................................................................................................252 cpdf_setflat ........................................................................................................................................................253 cpdf_setlinejoin .................................................................................................................................................253 cpdf_setlinecap..................................................................................................................................................253 cpdf_setmiterlimit .............................................................................................................................................253 cpdf_setlinewidth ..............................................................................................................................................253 cpdf_setdash ......................................................................................................................................................254 cpdf_moveto ......................................................................................................................................................254 cpdf_rmoveto.....................................................................................................................................................254 cpdf_curveto......................................................................................................................................................254 10
- 11. cpdf_lineto.........................................................................................................................................................255 cpdf_rlineto .......................................................................................................................................................255 cpdf_circle .........................................................................................................................................................255 cpdf_arc.............................................................................................................................................................255 cpdf_rect............................................................................................................................................................256 cpdf_closepath...................................................................................................................................................256 cpdf_stroke ........................................................................................................................................................256 cpdf_closepath_stroke .......................................................................................................................................256 cpdf_fill .............................................................................................................................................................256 cpdf_fill_stroke..................................................................................................................................................257 cpdf_closepath_fill_stroke.................................................................................................................................257 cpdf_clip............................................................................................................................................................257 cpdf_setgray_fill................................................................................................................................................257 cpdf_setgray_stroke...........................................................................................................................................258 cpdf_setgray ......................................................................................................................................................258 cpdf_setrgbcolor_fill .........................................................................................................................................258 cpdf_setrgbcolor_stroke ....................................................................................................................................258 cpdf_setrgbcolor................................................................................................................................................258 cpdf_add_outline...............................................................................................................................................259 cpdf_set_page_animation..................................................................................................................................259 cpdf_import_jpeg ..............................................................................................................................................260 cpdf_place_inline_image ..................................................................................................................................260 cpdf_add_annotation .........................................................................................................................................260 XI. CURL, Client URL Library Functions .................................................................................................................261 curl_init .............................................................................................................................................................263 curl_setopt .........................................................................................................................................................263 curl_exec ...........................................................................................................................................................265 curl_close ..........................................................................................................................................................265 curl_version .......................................................................................................................................................265 XII. Funciones de pago electrónico ............................................................................................................................267 cybercash_encr ..................................................................................................................................................269 cybercash_decr ..................................................................................................................................................269 cybercash_base64_encode.................................................................................................................................269 cybercash_base64_decode.................................................................................................................................269 XIII. Character type functions ....................................................................................................................................271 ctype_alnum ......................................................................................................................................................273 ctype_alpha........................................................................................................................................................273 ctype_cntrl.........................................................................................................................................................273 ctype_digit.........................................................................................................................................................273 ctype_lower .......................................................................................................................................................273 ctype_graph .......................................................................................................................................................273 ctype_print.........................................................................................................................................................273 ctype_punct .......................................................................................................................................................274 ctype_space .......................................................................................................................................................274 ctype_upper .......................................................................................................................................................274 ctype_xdigit.......................................................................................................................................................274 XIV. Funciones de la capa de abstraccion de bases de datos (dbm-style)..................................................................275 dba_close...........................................................................................................................................................277 dba_delete..........................................................................................................................................................277 dba_exists ..........................................................................................................................................................277 dba_fetch ...........................................................................................................................................................277 dba_firstkey .......................................................................................................................................................278 dba_insert ..........................................................................................................................................................278 dba_nextkey.......................................................................................................................................................278 dba_popen .........................................................................................................................................................278 dba_open ...........................................................................................................................................................279 11
- 12. dba_optimize .....................................................................................................................................................279 dba_replace........................................................................................................................................................279 dba_sync............................................................................................................................................................280 XV. Funciones de fecha y hora...................................................................................................................................281 checkdate...........................................................................................................................................................283 date ....................................................................................................................................................................283 getdate ...............................................................................................................................................................284 gettimeofday......................................................................................................................................................284 gmdate ...............................................................................................................................................................285 gmmktime..........................................................................................................................................................285 gmstrftime .........................................................................................................................................................285 microtime ..........................................................................................................................................................286 mktime...............................................................................................................................................................286 strftime ..............................................................................................................................................................287 time....................................................................................................................................................................288 XVI. Funciones para dBase ........................................................................................................................................289 dbase_create ......................................................................................................................................................291 dbase_open ........................................................................................................................................................291 dbase_close........................................................................................................................................................292 dbase_pack ........................................................................................................................................................292 dbase_add_record..............................................................................................................................................292 dbase_replace_record ........................................................................................................................................292 dbase_delete_record ..........................................................................................................................................292 dbase_get_record...............................................................................................................................................293 dbase_get_record_with_names .........................................................................................................................293 dbase_numfields ................................................................................................................................................293 dbase_numrecords.............................................................................................................................................293 XVII. Funciones dbm..................................................................................................................................................295 dbmopen............................................................................................................................................................297 dbmclose............................................................................................................................................................297 dbmexists...........................................................................................................................................................297 dbmfetch............................................................................................................................................................297 dbminsert...........................................................................................................................................................297 dbmreplace ........................................................................................................................................................298 dbmdelete ..........................................................................................................................................................298 dbmfirstkey........................................................................................................................................................298 dbmnextkey .......................................................................................................................................................298 dblist ..................................................................................................................................................................299 XVIII. dbx functions...................................................................................................................................................301 dbx_close...........................................................................................................................................................303 dbx_connect ......................................................................................................................................................303 dbx_error ...........................................................................................................................................................304 dbx_query..........................................................................................................................................................304 dbx_sort.............................................................................................................................................................306 dbx_cmp_asc.....................................................................................................................................................306 dbx_cmp_desc...................................................................................................................................................307 XIX. Funciones con directorios ..................................................................................................................................309 chdir...................................................................................................................................................................311 dir ......................................................................................................................................................................311 closedir ..............................................................................................................................................................311 opendir...............................................................................................................................................................311 readdir................................................................................................................................................................311 rewinddir ...........................................................................................................................................................312 XX. Funciones de DOM XML ...................................................................................................................................313 xmldoc...............................................................................................................................................................315 xmldocfile..........................................................................................................................................................315 12
- 13. xmltree...............................................................................................................................................................315 XXI. Error Handling and Logging Functions .............................................................................................................317 error_log ............................................................................................................................................................319 error_reporting ..................................................................................................................................................320 restore_error_handler ........................................................................................................................................320 set_error_handler...............................................................................................................................................320 trigger_error ......................................................................................................................................................322 user_error ..........................................................................................................................................................323 XXII. Funciones filePro ..............................................................................................................................................325 filepro ................................................................................................................................................................327 filepro_fieldname...............................................................................................................................................327 filepro_fieldtype ................................................................................................................................................327 filepro_fieldwidth ..............................................................................................................................................327 filepro_retrieve ..................................................................................................................................................327 filepro_fieldcount ..............................................................................................................................................327 filepro_rowcount ...............................................................................................................................................328 XXIII. Funciones del sistema de ficheros ...................................................................................................................329 basename ...........................................................................................................................................................331 chgrp..................................................................................................................................................................331 chmod................................................................................................................................................................331 chown ................................................................................................................................................................332 clearstatcache ....................................................................................................................................................332 copy ...................................................................................................................................................................332 delete .................................................................................................................................................................333 dirname..............................................................................................................................................................333 diskfreespace .....................................................................................................................................................333 fclose .................................................................................................................................................................333 feof ....................................................................................................................................................................334 fgetc ...................................................................................................................................................................334 fgetcsv ...............................................................................................................................................................334 fgets ...................................................................................................................................................................335 fgetss..................................................................................................................................................................335 file......................................................................................................................................................................336 file_exists...........................................................................................................................................................336 fileatime.............................................................................................................................................................336 filectime.............................................................................................................................................................336 filegroup.............................................................................................................................................................337 fileinode.............................................................................................................................................................337 filemtime............................................................................................................................................................337 fileowner............................................................................................................................................................337 fileperms ............................................................................................................................................................337 filesize................................................................................................................................................................338 filetype...............................................................................................................................................................338 flock...................................................................................................................................................................338 fopen..................................................................................................................................................................339 fpassthru ............................................................................................................................................................340 fputs ...................................................................................................................................................................340 fread...................................................................................................................................................................340 fseek ..................................................................................................................................................................340 ftell ....................................................................................................................................................................341 fwrite .................................................................................................................................................................341 set_file_buffer....................................................................................................................................................341 is_dir..................................................................................................................................................................342 is_executable .....................................................................................................................................................342 is_file .................................................................................................................................................................342 is_link ................................................................................................................................................................342 13
- 14. is_readable.........................................................................................................................................................343 is_writeable .......................................................................................................................................................343 link.....................................................................................................................................................................343 linkinfo ..............................................................................................................................................................343 mkdir .................................................................................................................................................................344 pclose.................................................................................................................................................................344 popen .................................................................................................................................................................344 readfile...............................................................................................................................................................345 readlink..............................................................................................................................................................345 rename ...............................................................................................................................................................345 rewind................................................................................................................................................................345 rmdir ..................................................................................................................................................................346 stat .....................................................................................................................................................................346 lstat ....................................................................................................................................................................347 symlink ..............................................................................................................................................................347 tempnam............................................................................................................................................................347 touch ..................................................................................................................................................................348 umask ................................................................................................................................................................348 unlink.................................................................................................................................................................348 XXIV. Funciones Forms Data Format (Formato de Datos de Formularios) ..............................................................351 fdf_open ............................................................................................................................................................353 fdf_close ............................................................................................................................................................353 fdf_create...........................................................................................................................................................353 fdf_save .............................................................................................................................................................354 fdf_get_value.....................................................................................................................................................354 fdf_set_value .....................................................................................................................................................354 fdf_next_field_name..........................................................................................................................................354 fdf_set_ap ..........................................................................................................................................................355 fdf_set_status.....................................................................................................................................................355 fdf_get_status ....................................................................................................................................................355 fdf_set_file.........................................................................................................................................................355 fdf_get_file ........................................................................................................................................................356 XXV. Funciones FTP..................................................................................................................................................357 ftp_connect ........................................................................................................................................................359 ftp_login ............................................................................................................................................................359 ftp_pwd..............................................................................................................................................................359 ftp_cdup.............................................................................................................................................................359 ftp_chdir ............................................................................................................................................................359 ftp_mkdir...........................................................................................................................................................359 ftp_rmdir............................................................................................................................................................360 ftp_nlist..............................................................................................................................................................360 ftp_rawlist..........................................................................................................................................................360 ftp_systype ........................................................................................................................................................360 ftp_pasv .............................................................................................................................................................360 ftp_get................................................................................................................................................................361 ftp_fget ..............................................................................................................................................................361 ftp_put ...............................................................................................................................................................361 ftp_fput ..............................................................................................................................................................361 ftp_size ..............................................................................................................................................................362 ftp_mdtm ...........................................................................................................................................................362 ftp_rename.........................................................................................................................................................362 ftp_delete ...........................................................................................................................................................362 ftp_quit ..............................................................................................................................................................362 XXVI. Function Handling functions...........................................................................................................................365 call_user_func ...................................................................................................................................................367 create_function ..................................................................................................................................................367 14
- 15. func_get_arg......................................................................................................................................................369 func_get_args ....................................................................................................................................................369 func_num_args ..................................................................................................................................................370 function_exists...................................................................................................................................................370 register_shutdown_function ..............................................................................................................................371 XXVII. GNU Gettext..................................................................................................................................................373 bindtextdomain..................................................................................................................................................375 dcgettext ............................................................................................................................................................375 dgettext ..............................................................................................................................................................375 gettext ................................................................................................................................................................375 textdomain.........................................................................................................................................................375 XXVIII. GMP functions .............................................................................................................................................377 gmp_init ............................................................................................................................................................379 gmp_intval.........................................................................................................................................................379 gmp_strval .........................................................................................................................................................379 gmp_add............................................................................................................................................................380 gmp_sub ............................................................................................................................................................380 gmp_mul............................................................................................................................................................380 gmp_div_q.........................................................................................................................................................380 gmp_div_r .........................................................................................................................................................380 gmp_div_qr .......................................................................................................................................................381 gmp_div.............................................................................................................................................................381 gmp_mod...........................................................................................................................................................381 gmp_divexact ....................................................................................................................................................382 gmp_cmp...........................................................................................................................................................382 gmp_neg ............................................................................................................................................................382 gmp_abs ............................................................................................................................................................382 gmp_sign ...........................................................................................................................................................382 gmp_fact............................................................................................................................................................382 gmp_sqrt............................................................................................................................................................383 gmp_sqrtrm .......................................................................................................................................................383 gmp_perfect_square ..........................................................................................................................................383 gmp_pow...........................................................................................................................................................383 gmp_powm........................................................................................................................................................383 gmp_prob_prime ...............................................................................................................................................384 gmp_gcd............................................................................................................................................................384 gmp_gcdext .......................................................................................................................................................384 gmp_invert.........................................................................................................................................................384 gmp_legendre ....................................................................................................................................................384 gmp_jacobi ........................................................................................................................................................385 gmp_random......................................................................................................................................................385 gmp_and............................................................................................................................................................385 gmp_or ..............................................................................................................................................................385 gmp_xor ............................................................................................................................................................385 gmp_setbit .........................................................................................................................................................386 gmp_clrbit .........................................................................................................................................................386 gmp_scan0.........................................................................................................................................................386 gmp_scan1.........................................................................................................................................................386 gmp_popcount...................................................................................................................................................386 gmp_hamdist .....................................................................................................................................................387 XXIX. Funciones HTTP.............................................................................................................................................389 header ................................................................................................................................................................391 setcookie............................................................................................................................................................391 XXX. Funciones para Hyperwave ..............................................................................................................................393 hw_Array2Objrec..............................................................................................................................................397 hw_Children ......................................................................................................................................................397 15