3v4l.org

run code in 500+ PHP versions simultaneously
<?php $array = [1 => 'a', 0 => 'b']; var_dump(array_is_list($array)); ksort($array); var_dump(array_is_list($array)); $array = [1 => 'b']; $array[0] = 'a'; var_dump(array_is_list($array)); asort($array); // lucky sort var_dump(array_is_list($array));

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.5.70.0100.01016.85

preferences:
44.31 ms | 480 KiB | 5 Q