3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $matches=array(); $s="uno dos tres ugo"; preg_match_all("/^u.*?$/", $s, $matches); print_r($matches);
based on tkl4R
Output for 5.3.21 - 7.2.0
Array ( [0] => Array ( ) )