3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $string = 'categoryparameterusedpricing_1'; preg_match("/[a-z_0-9]/", $string, $matches); echo $matches;
based on cF5oh
Output for 5.4.0 - 7.2.0
Notice: Array to string conversion in /in/G4cGK on line 6 Array
Output for 4.3.0 - 5.3.29
Array