3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $src = '//player.vimeo.com/video/36899035'; preg_match('#vimeo.com[^\'"\/]*/([0-9]+)#i',$src,$output); var_dump($output);
based on QqMj8
Output for 4.3.0 - 7.2.0
array(0) { }