3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = range(1, 1000); //$array = preg_filter('/^/', 'test_', $array); $array = array_map(function($item){ return 'test_'.$item; }, $array);
based on PUmbP
Output for 5.3.20 - 7.2.0