The document discusses setting up a basic web application using LAMP/WAMP stack. It covers downloading and installing WAMP server, creating a database and table, importing data, connecting to the database from PHP, querying the database to retrieve and display data in an HTML table, and closing database connections. The key steps are to install WAMP, create a database and table, import data, create a PHP script that connects to the database, executes a query, and outputs the results in an HTML table, and close connections for security.

1. J M Githeko

2. 1. The Tools
2. LAMP or WAMP
3. Other Web Application Tools
4. Download and Install WAMP server –
MySQL root password, phpMyAdmin
5. Creating a database, securing the
database
6. Uploading data into the database
7. Simple database lookup with PHP

3. HTTP
Client
HTTP Server
(Browser)
Scripting
Engine
Back-End Server
(Usually DBMS)

4.  LAMP: Linux, Apache, MySQL, PHP
 WAMP: Windows, Apache, MySQL, PHP
 Other databases: POSTGRESQL,
Firebird
 Other scripting engines: Python, Ruby,
Java/JSP, C#/.Net, Perl,
 Web Frameworks: Struts, .Net AJAX,
Cold Fusion, Symfony, Django, Zope,
Rails, Chisimba

5.  Download WAMP
 Double-click file to start the installation
 Provide info, be careful with MySQL root
password – write it down, should be a
strong password
 MySQL Admin tools:
 mysql.exe
 MySQL Administrator
 Phpmyadmin
 Toad for MySQL
 MySQL Workbench
 Locate your WWW and MySQL data
directories (usually c:wampwww and
c:wampbin...)

6. <form name="form" action="semsearch.php"
method="POST">
City Name: <input type="text" name=“city" />
<br />
<input type="submit" name="Submit"
value="Search" /> <input type="reset"
name="reset" value="Clear" />
</form>

7.  Provide login credentials for MySQL
 Select the database to work with
 Connect to database
 Create query(or other SQL command)
string
 Execute query and save results set
 Build table of results
Table heading
Table body
Table footer
 Close database connections

8.  Validation of user input
 Security measures – remove dangerous
code
 Display results using multiple pages for
large result sets
 Manager user privileges for maximum
security

9. <?php
$dbhost = 'localhost'; //MySQL server name
$dbuser = 'ex1'; //User name to be used
$dbpass = 'ex12010'; //User password
$conn = mysql_connect($dbhost, $dbuser,
$dbpass) or die ('Error
connecting to mysql');
$dbname = 'example1'; //database name
mysql_select_db($dbname, $conn); //Connect
to database
?>

10. $para=$_POST[„city']
$queryx1= "SELECT sem, code, title
FROM courses
WHERE sem =' $para'"

11.  $result = mysql_query($queryx1);

13.  Header Columns: Country, City, Postal
Code
<table>
<tr>
<th> Country</th><th>Postal Code
</th><th> City</th>
</tr>

14.  Loop through the rows and use records to
construct the rows:
<?php
while ($row = mysql_fetch_assoc($result)) {
print "<tr><td>$row[„country']</td>";
print "<td>$row[code]</td>";
print "<td>$row[city]</td></tr>";
}
} ?>
</table>

15. //fetch tha data from the database
while ($row = mysql_fetch_array($result))
{
print("<tr><td>".$row[0]."</td><td>".$row[1].
"</td><td>".$row[2]."</td></tr>“); //display
the results one table row at a time
}

16.  Helps prevent unintentional database
corruption
<?php
</table>
mysql_close($conn);
?>

17. 1. Install WAMP server or other Apache version that
includes PHP and MySQL
2. Create a database in MSQL and a table to fit the Courses
data supplied.
3. Import the Courses data into the table
4. Create a user with limited privileges over ONLY the new
database you have created
5. Create a web page with a form to be used for searching
A
the database. Form “action” field should match the name
of the PHP script.
6. Create the PHP script to process the form.
7. Store the web page and PHP script in WWW directory.
8. Test the scripts ensuring database name, user name,
password and so on are correct.