- var_dump: documentation ( source)
- parse_str: documentation ( source)
- parse_url: documentation ( source)
<?php
$url = 'http://www.example.com/?affid=12345';
$query = parse_url($url, PHP_URL_QUERY);
$vars = parse_str($query); var_dump($vars);
echo $vars['affid']; // outputs 12345