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)
8.5.90.0110.00716.89
8.5.80.0050.00416.82
8.5.70.0100.01016.85
8.4.240.0140.01019.59
8.4.230.0050.00519.62
8.4.220.0080.00219.59
8.4.90.0050.00517.91
8.3.330.0090.01518.34
8.3.320.0080.00218.37
8.3.180.0070.00216.48
8.3.50.0060.00416.65
8.2.320.0060.00417.99
preferences:
42.88 ms | 533 KiB | 5 Q