3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php if( preg_match( '[^a-zA-Z0-9\_\-]', "../../../index" ) ) { echo "404.php"; } else { echo "nyert"; }
based on Cld6Y
Output for 4.3.0 - 7.2.0
nyert