3v4l.org

run code in 300+ PHP versions simultaneously
<?php $commands = "[CMD1,[CMD2],[CMD3,[CMD4],[CMD5]]]"; if (preg_match_all('/[^][,]+/', $commands, $matches)) { $array = $matches[0]; rsort($array); print_r($array); }

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25.54 ms | 406 KiB | 5 Q