3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array( array('a' => 1, 'b' => 2), array('a' => 1, 'b' => 2), array('a' => 2, 'b' => 3)); echo array_count_values($arr);

preferences:
42.16 ms | 402 KiB | 5 Q