3v4l.org

run code in 300+ PHP versions simultaneously
<?php print_r([...[1, 2, 3], 4]);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 )
preferences:
129.58 ms | 402 KiB | 121 Q