3v4l.org

run code in 500+ PHP versions simultaneously
<?php $oneDimensionalArray = []; var_dump(($oneDimensionalArray[0])[1] ?? '');
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
string(0) ""
preferences:
29.73 ms | 1152 KiB | 7 Q