3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php preg_match( '/^\[storepick]/', 'storepickup_storepickup', $matches); echo $matches[1]; // 1234
Output for 5.6.30, 7.0.0 - 7.3.0rc3
Notice: Undefined offset: 1 in /in/dEXqJ on line 3
Output for hhvm-3.22.0
Notice: Undefined index: 1 in /in/dEXqJ on line -1
Output for hhvm-3.15.4 - 3.21.3
Notice: Undefined index: 1 in /in/dEXqJ on line 3