3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ids=array('01234','1234'); $ids= array_map(function($var){ return (string) $var; }, $ids); foreach ($ids as $id){ echo $id; echo "<br />"; }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
01234<br />1234<br />
preferences:
97.75 ms | 1506 KiB | 4 Q