3v4l.org

run code in 300+ PHP versions simultaneously
<?php function is_multi($array) { return (count($array) != count($array, 1)); } var_export(is_multi([[]])); echo "\n---\n"; var_export(is_multi([[], []])); echo "\n---\n"; var_export(is_multi([1])); echo "\n---\n"; var_export(is_multi([[1], []])); echo "\n---\n";
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
false --- false --- false --- true ---
preferences:
127.26 ms | 402 KiB | 121 Q