3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ '1,2,1,23,5,2', '1,1,1,2,3,2', '2,3,4', '1,2,3', '1,2,3,4', '1,2,3,10', '1,2,3,4', '1,2,3', '3,2,2' ]; var_export(array_unique(explode(',', implode(',', $array))));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
array ( 0 => '1', 1 => '2', 3 => '23', 4 => '5', 10 => '3', 14 => '4', 25 => '10', )
preferences:
53.59 ms | 402 KiB | 62 Q