3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 'a' => 1, 'b' => 2, 'c' => 3, ]; echo json_encode($array);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
{"a":1,"b":2,"c":3}
preferences:
97.18 ms | 402 KiB | 89 Q