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run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match( "/^ndg\_keywords\.partial\([a-zA-Z\_\ ]+\)/", "ndg_keywords.partial(a_Imelda Staunton )", $matches); echo $matches[1]; // 1234 ?>
Output for 5.3.0 - 7.1.0
Notice: Undefined offset: 1 in /in/Zg92k on line 3
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: 1 in /in/Zg92k on line 3