- var_dump: documentation ( source)
- preg_match: documentation ( source)
<?php
$pattern = '#^/([a-z]{2})/([a-zA-Z0-9_-]++)/([a-zA-Z0-9_-]++)/(/.*+)?+[/]{0,1}$#';
$subject = '/en/user/login/foo';
var_dump(preg_match($pattern, $subject, $matches), $matches);