How can PHP be used in conjunction with .htaccess for URL rewriting?

When using PHP in conjunction with .htaccess for URL rewriting, you can create a rewrite rule in the .htaccess file that redirects requests to a PHP file. In the PHP file, you can then parse the URL and determine the appropriate content to display based on the rewritten URL. 

// .htaccess
RewriteEngine On
RewriteRule ^example/([a-zA-Z0-9-]+)$ example.php?url=$1 [L]

// example.php
<?php
$url = $_GET['url'];

switch ($url) {
    case 'about':
        include 'about.php';
        break;
    case 'contact':
        include 'contact.php';
        break;
    default:
        include '404.php';
}
?>

Keywords

PHP .htaccess URL rewriting mod_rewrite regular expressions

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