3v4l.org

run code in 500+ PHP versions simultaneously
<?php $array = [null => 42, false => 43]; var_dump(array_key_exists(null, $array)); // true var_dump(array_key_exists('', $array)); // true var_dump(array_key_exists(false, $array)); // true var_dump(array_key_exists(0, $array)); // true var_dump(array_key_exists(0.0, $array)); // true print count($array). " elements in the array\n";

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)
8.5.60.0100.00816.76
8.5.50.0120.00516.80
8.5.30.0100.00717.87
8.5.20.0080.00819.97
8.5.10.0040.00516.70
8.5.00.0140.00920.16
8.4.210.0140.00821.39
8.4.180.0110.01020.64
8.4.170.0140.00923.77
8.4.160.0140.00623.80
8.4.150.0070.00616.73
8.4.140.0130.00917.63
8.4.130.0110.00917.59
8.4.120.0100.01120.54
8.4.110.0080.00719.13
8.4.100.0120.00817.90
8.4.90.0100.00619.70
8.4.80.0100.01017.68
8.4.70.0420.00817.67
8.4.60.0440.00717.85
8.4.50.0400.00817.89
8.4.40.0410.00817.58
8.4.30.0380.00917.60
8.4.20.0370.01117.55
8.4.10.0430.00817.48
8.3.300.0120.00820.76
8.3.290.0070.01220.85
8.3.280.0070.01318.45
8.3.270.0100.01016.86
8.3.260.0140.00516.52
8.3.250.0130.00618.86
8.3.240.0110.00918.98
8.3.230.0070.00616.50
8.3.220.0130.00616.61
8.3.210.0340.01016.61
8.3.200.0310.00916.66
8.3.190.0410.01016.66
8.3.180.0390.00916.20
8.3.170.0410.00916.29
8.3.160.0320.00916.55
8.3.150.0410.01116.20
8.3.140.0400.00916.21
8.3.130.0340.00816.20
8.3.120.0340.00816.24
8.3.110.0300.01316.28
8.3.100.0370.01016.55
8.3.90.0410.00716.52
8.3.80.0370.01016.74
8.3.70.0380.00916.76
8.3.60.0330.00916.59
8.3.50.0400.00816.20
8.3.40.0370.00917.62
8.3.30.0250.01217.49
8.3.20.0330.00817.54
8.3.10.0290.00317.32
8.3.00.0290.00517.52
8.2.300.0090.01118.63
8.2.290.0090.01118.89
8.2.280.0310.00616.77
8.2.270.0310.00816.85
8.2.260.0320.01016.63
8.2.250.0130.00416.77
8.2.240.0310.00916.73
8.2.230.0310.00816.27
8.2.220.0330.00716.53
8.2.210.0310.00816.29
8.2.200.0250.00716.48
8.2.190.0300.00916.35
8.2.180.0310.01116.45
8.2.170.0370.00717.87
8.2.160.0310.01117.80
8.2.150.0320.00617.64
8.2.140.0350.00817.67
8.2.130.0340.00717.59
8.2.120.0300.00617.64
8.2.110.0400.00517.75
8.2.100.0360.00517.54
8.2.90.0320.00617.51
8.2.80.0330.00717.52
8.2.70.0300.01117.49
8.2.60.0330.01117.42
8.2.50.0260.00817.69
8.2.40.0150.00417.68
8.2.30.0280.00517.55
8.2.20.0350.00517.57
8.2.10.0290.00917.32
8.2.00.0310.00817.18
8.1.340.0090.01021.77

preferences:
55.62 ms | 853 KiB | 5 Q