3v4l.org

run code in 500+ 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 - 8.2.32, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0 - 8.5.8
Array ( [1] => 5 [2] => 4 [3] => 3 )
preferences:
89.63 ms | 1286 KiB | 4 Q