3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [5, 1 , 2, 3, [1,5,59,47,58,[0,12,562]]]; array_walk_recursive($arr, function($v) use (&$res){$res[]=$v;}); echo min($res);
Output for 7.1.0 - 7.1.33, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
0

preferences:
148.12 ms | 407 KiB | 5 Q