3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = "oauth2provider.server"; preg_match('~^oauth2provider.server.([a-zA-Z0-9]+)$~', $x, $matches); var_dump($matches);
Output for 4.3.0 - 7.1.0
array(0) { }