How Can I Rewrite URLs with GET Parameters Using .htaccess?

Rewriting GET Variables with .htaccess

Many web applications utilize a URL structure that includes dynamic content, such as the example provided: index.php?page=controller. To improve user experience and maintain a cleaner URL structure, it is desirable to rewrite these URLs to appear in a more user-friendly format. This can be achieved using .htaccess rules.

The provided .htaccess rules effectively rewrite URLs of the form http://localhost/index.php?page=controller to http://localhost/controller/. However, the requirement is to also support GET parameters, resulting in URLs such as http://localhost/controller/param/value/param/value.

To accomplish this, the following RewriteRule can be added to the .htaccess file:

RewriteRule ^(.*)$ index.php?params= [NC, QSA]

This rule captures the entire URL, including any parameters, and assigns the captured data to the params GET variable. Consequently, the URL http://localhost/controller/param/value/param/value would be rewritten to index.php?params=param/value/param/value.

In the PHP script, the params GET variable can be exploded to extract individual parameters and their values. For instance:

<?php

$params = explode("/", $_GET['params']);
for($i = 0; $i < count($params); $i+=2) {

  echo $params[$i] ." has value: ". $params[$i+1] ."<br />";

}

?>

With this modification, the .htaccess rules will successfully rewrite URLs with GET parameters, enabling the PHP script to access these parameters for further processing and controller logic.

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