Single Point Entry met url

<?php
// Read REQUEST_URI, suppress errors (gave E_WARNING prior to PHP 5.3.3).
$uriData = @parse_url($_SERVER['REQUEST_URI']);

$path = '';
if ($uriData === false) {
    // Do something?
} else {
    if (isset($uriData['path'])) {
        // We might be in a subdirectory of the webroot.
        // We are only interested in the part starting from this relative root.
        $path = str_replace(DIRECTORY_SEPARATOR, '/', $uriData['path']);
        $relativePath = str_replace(DIRECTORY_SEPARATOR, '/', dirname($_SERVER['SCRIPT_NAME']));
        // Strip the relative path from $path.
        $path = substr($path, strlen($relativePath));
        // Finally, strip any leading/trailing slashes so we end up with a "cleaned" path.
        $path = trim($path, '/');
    }
}

$pathParts = explode('/', $path);

if (empty($pathParts[0])) {
    
	include('homepage.php');

} else {
    // controleer hier eerste deel van applicatiepad
    switch ($pathParts[0]) {
        case 'leden':
            // do stuff;
            include 'leden.php';
        break;
        // et cetera
        case 'over':
            include 'over.php';
            break;
        case 'nieuws':
            include 'nieuws.php';
            break;
        default: // niet-bestaande pagina, toon 404
    }
}
?>