3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = ['a' => null]; var_dump(array_key_exists('a', $x));

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)
8.4.120.0100.00920.24
8.4.110.0110.00922.49
8.4.100.0130.00717.38
8.4.90.0090.01018.59
8.4.80.0110.00917.88
8.4.70.0110.01017.93
8.4.60.0150.00518.68
8.4.50.0100.01020.16
8.4.40.0100.01017.52
8.4.30.0170.00320.68
8.4.20.0100.01017.63
8.4.10.0000.00919.29
8.3.250.0110.00819.11
8.3.240.0090.00716.57
8.3.230.0120.00916.45
8.3.220.0090.00916.97
8.3.210.0090.00818.21
8.3.200.0060.00416.39
8.3.190.0090.00918.63
8.3.180.0050.01016.59
8.3.170.0070.01018.86
8.3.160.0120.00616.90
8.3.150.0090.00916.95
8.3.140.0020.00516.41
8.3.130.0060.00316.32
8.3.120.0030.00620.51
8.3.110.0030.00616.50
8.3.100.0030.00618.46
8.3.90.0070.00726.77
8.3.80.0040.00717.97
8.3.70.0120.00916.50
8.3.60.0070.00716.63
8.3.50.0180.00316.39
8.3.40.0070.01022.03
8.3.30.0060.01018.88
8.3.20.0080.00024.18
8.3.10.0030.00624.66
8.3.00.0000.00826.16
8.2.290.0110.01020.45
8.2.280.0120.00718.15
8.2.270.0140.00318.70
8.2.260.0090.00918.40
8.2.250.0080.00016.65
8.2.240.0100.01017.09
8.2.230.0040.00420.94
8.2.220.0060.00324.06
8.2.210.0080.01126.77
8.2.200.0090.00318.41
8.2.190.0140.00716.58
8.2.180.0140.00716.75
8.2.170.0080.00818.88
8.2.160.0100.00322.96
8.2.150.0000.00725.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00021.02
8.2.110.0070.00419.45
8.2.100.0240.00917.69
8.2.90.0300.00017.69
8.2.80.0220.00717.69
8.2.70.0280.00317.69
8.2.60.0200.00917.69
8.2.50.0260.00417.69
8.2.40.0160.01017.69
8.2.30.0250.00317.69
8.2.20.0240.00317.69
8.2.10.0220.00417.69
8.2.00.0260.00217.69
8.1.330.0160.00221.80
8.1.320.0150.00416.34
8.1.310.0040.01118.49
8.1.300.0040.00416.53
8.1.290.0000.01030.84
8.1.280.0130.00725.92
8.1.270.0000.00724.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00019.14
8.1.230.0160.00318.91
8.1.220.0220.00617.69
8.1.210.0210.00717.69
8.1.200.0300.00017.69
8.1.190.0280.00017.69
8.1.180.0300.00017.69
8.1.170.0250.00317.69
8.1.160.0280.00417.69
8.1.150.0280.00317.69
8.1.140.0280.00317.69
8.1.130.0270.00417.69
8.1.120.0300.00417.69
8.1.110.0190.01217.69
8.1.100.0270.00517.69
8.1.90.0300.00017.69
8.1.80.0250.00617.69
8.1.70.0230.00517.69
8.1.60.0250.00617.69
8.1.50.0150.01217.69
8.1.40.0190.00817.69
8.1.30.0230.00317.69
8.1.20.0290.00017.69
8.1.10.0200.00817.69
8.1.00.0180.00917.69
8.0.300.0190.01017.69
8.0.290.0230.00517.69
8.0.280.0210.00617.69
8.0.270.0220.00417.69
8.0.260.0220.00417.69
8.0.250.0170.00917.69
8.0.240.0220.00417.69
8.0.230.0170.01017.69
8.0.220.0260.00317.69
8.0.210.0210.00717.69
8.0.200.0280.00317.69
8.0.190.0240.00317.69
8.0.180.0210.00717.69
8.0.170.0150.01117.69
8.0.160.0280.00017.69
8.0.150.0220.00417.69
8.0.140.0220.00417.69
8.0.130.0240.00517.69
8.0.120.0260.00317.69
8.0.110.0220.00917.69
8.0.100.0280.00017.69
8.0.90.0250.00317.69
8.0.80.0180.00717.69
8.0.70.0250.00317.69
8.0.60.0220.00317.69
8.0.50.0200.00717.69
8.0.30.0280.00317.69
8.0.20.0170.00917.69
8.0.10.0260.00017.69

preferences:
62.43 ms | 403 KiB | 5 Q