3v4l.org

run code in 500+ PHP versions simultaneously
<?php ['one' => $result[], 'one' => $result[]] = ['one' => 1]; var_export($result);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
array ( 0 => 1, 1 => 1, )
preferences:
104.41 ms | 1262 KiB | 4 Q