3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array("world", 1, "hello", 1, "hello", "hello", "how"); $new_array = array_count_values($array); print_r($new_array); ?>
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 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 - 8.3.25, 8.4.1 - 8.4.12
Array ( [world] => 1 [1] => 2 [hello] => 3 [how] => 1 )
preferences:
140.62 ms | 408 KiB | 5 Q