3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php #http://tools.ietf.org/html/rfc4648#section-5 var_dump(preg_match("/^([a-zA-Z0-9-._~!$&'()*+,;=:@]+)$/", 'abcddd-66?7', $m)); var_dump($m);
Output for 4.3.0 - 7.1.0
int(0) array(0) { }