3v4l.org

run code in 300+ PHP versions simultaneously
<?php $type = 'login'; $data = 'wolf'; echo FormValid($data,$type); function FormValid($data,$type){ switch($type){ case 'login': $edit = preg_replace("/[^A-Za-z0-9]/u", "", $data); break; case 'password': $edit = preg_replace("/[^A-Za-z0-9-_.,]/", "", $data); break; } if($data != $edit){ return false; } else{ return $data; }; }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
wolf
preferences:
261.42 ms | 406 KiB | 356 Q