Diego "Kartones" Muñoz mostrará ciertos trucos y metodología de PHP y AJAX para desarrollos del calibre de Tuenti, empresa que todos conocemos.

4. C#/.NET background, now a bit of PHP knowledge

5. diego@tuenti.com

7. Shared Hosting to Tuenti-like scale webs

8. Typical PHP

9. PHP Practices

10. Coding Practices

12. THE REAL GOAL Avoid the PHP joke

13. THE REAL REAL GOAL Build quality PHP code

14. SHARED HOSTING Internet Frontend + DB

15. FIRST SPLIT Internet Frontend DB

16. MORE FRONTENDS Internet Frontends DB

17. CACHING TIME Internet Frontends Cache DB

18. MORE CACHING Internet Frontends Cache DB

19. MASTER/SLAVE DBS Internet Frontends Cache DBs

20. TUENTI (OVERVIEW) Internet Farm 1 Farm 2 Farm N Others Frontends Caches DBs

22. If lucky, separated into ¨functions¨ and templates (PHPBB, Wordpress…)

24. TYPICAL PHP News since your last visit: <ul> <? $e = $_POST['email']; $news = mysql_query("SELECT * FROM news WHERE email='{$e}'"); […] foreach($news as $newsItem) { ?> <li><?=$newsItem[0]?></li> <? } ?> </ul>

25. TYPICAL PHP News since your last visit: <ul> <? $e = $_POST['email']; $news = mysql_query("SELECT * FROM news WHERE email='{$e}'"); […] foreach($news as $newsItem) { ?> <li><?=$newsItem[0]?></li> <? } ?> </ul>

26. TYPICAL PHP News since your last visit: <ul> <? $e = $_POST['email']; $news = mysql_query("SELECT * FROM news WHERE email='{$e}'"); […] foreach($news as $newsItem) { ?> <li><?=$newsItem[0]?></li> <? } ?> </ul>

27. TYPICAL PHP function crop_string($string) { if (strlen($string) > 30) { $string = substr($string, 0, 30) . “…”; } return $string; } $text = crop_string(“developers,developers,developers,developers”);

28. TYPICAL PHP class StringHelper { const CROP_ELLIPSIS = ‘…’;const CROP_DEFAULT_SIZE = 30; public static function Crop($text, $cropLength = self::CROP_DEFAULT_SIZE) { if (mb_strlen($text) > $cropLength) { $croppedText = substr($text,0,$cropLength) . Self::CROP_ELLIPSIS; } else { $croppedText = $text; } return $croppedText; } $text = StringHelper::Crop(“developers,developers,developers,developers”);

30. Object Orientation

32. MVC is typical and goodController Model View

36. Less memory, more concurrent PHP processes

37. unset()

39. Same PHP execution = same singleton

40. 2 page requests = 2 different singletons

41. Terribly dangerous in tests

43. Comments

44. @author tag (Sign your code!)

45. Proper variables casing & naming

46. Good source tree = easy to guess where to find a class

50. defined()

51. isset()

52. class_exists()

54. Best options: SVN,Git, Mercurial

55. Always linked to a ticket control system

56. Learn to branch, diff, merge, resolve conflicts

58. Test DB data (Fixtures)

59. Mock Objects

60. Integration tests

62. HTTP protocol basics

63. Some Javascript

64. Minimal CSS

65. Robots.txt

66. Favicon.ico

67. Sitemap.xml

68. Cookies

69. Encoding

71. Google closure Compiler

72. YuiCompressor

73. Firebug

74. Use tools to detect improvements:

75. PageSpeed (Firefox/Chrome)

76. YSlow (Firefox)

78. Cookies (4KB max)

79. LocalStorage (HTML5)

80. Global scoped Javascript variables (AJAX only)

82. Lazy loading

83. Lazy deletion