3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(1, 1, 1, 2, 2, 3, 3, 1, 1, 2, 2, 3); print_r(array_count_values($arr));
Output for 7.4.0 - 7.4.33, 8.0.1 - 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
Array ( [1] => 5 [2] => 4 [3] => 3 )
preferences:
106.16 ms | 1241 KiB | 4 Q