3v4l.org

run code in 300+ PHP versions simultaneously
<?php const X = []; $a = X[null]; var_dump($a);

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)
8.3.60.0060.00918.68
8.3.50.0090.00918.13
8.3.40.0150.00018.67
8.3.30.0080.00818.55
8.3.20.0110.00419.35
8.3.10.0000.00821.86
8.3.00.0050.00220.61
8.2.180.0090.00618.66
8.2.170.0090.00922.96
8.2.160.0110.00621.98
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00218.22
8.2.120.0030.00626.35
8.2.110.0070.01420.54
8.2.100.0040.00718.03
8.2.90.0050.00317.88
8.2.80.0080.00017.97
8.2.70.0080.00018.16
8.2.60.0000.00718.34
8.2.50.0030.00718.10
8.2.40.0060.00319.46
8.2.30.0000.00919.30
8.2.20.0080.00018.01
8.2.10.0030.00518.00
8.2.00.0030.00517.85
8.1.280.0070.00725.92
8.1.270.0080.00018.88
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0090.00022.11
8.1.230.0060.00619.61
8.1.220.0060.00317.74
8.1.210.0080.00018.77
8.1.200.0060.00317.36
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0000.00818.41
8.1.160.0030.00318.89
8.1.150.0000.00718.88
8.1.140.0000.00722.05
8.1.130.0030.00320.27
8.1.120.0070.00017.48
8.1.110.0030.00317.34
8.1.100.0040.00417.45
8.1.90.0000.00817.34
8.1.80.0040.00417.46
8.1.70.0000.00717.47
8.1.60.0080.00017.55
8.1.50.0040.00417.43
8.1.40.0050.00317.42
8.1.30.0080.00017.68
8.1.20.0040.00417.63
8.1.10.0000.00717.41
8.1.00.0040.00417.39
8.0.300.0020.00518.77
8.0.290.0080.00016.88
8.0.280.0000.00718.36
8.0.270.0070.00017.21
8.0.260.0030.00318.45
8.0.250.0030.00317.03
8.0.240.0000.00817.04
8.0.230.0030.00316.88
8.0.220.0040.00616.91
8.0.210.0000.00817.00
8.0.200.0040.00417.02
8.0.190.0000.01017.02
8.0.180.0000.00817.02
8.0.170.0040.00416.96
8.0.160.0040.00416.93
8.0.150.0070.00016.85
8.0.140.0000.00716.92
8.0.130.0000.00513.44
8.0.120.0060.00316.94
8.0.110.0040.00416.95
8.0.100.0040.00416.99
8.0.90.0000.00717.02
8.0.80.0120.00416.92
8.0.70.0020.00516.94
8.0.60.0050.00317.02
8.0.50.0040.00416.75
8.0.30.0100.00917.14
8.0.20.0090.00917.40
8.0.10.0000.00716.98
8.0.00.0100.00716.70
7.4.330.0050.00015.55
7.4.320.0000.00616.64
7.4.300.0030.00316.62
7.4.290.0070.00016.40
7.4.280.0040.00416.51
7.4.270.0040.00416.65
7.4.260.0070.00016.39
7.4.250.0000.00716.45
7.4.240.0030.00316.46
7.4.230.0030.00316.68
7.4.220.0040.00416.61
7.4.210.0080.00616.54
7.4.200.0030.00316.55
7.4.160.0070.00916.44
7.4.140.0110.01017.86
7.4.130.0110.00716.44
7.4.120.0090.00916.63
7.3.330.0000.00513.22
7.3.320.0060.00013.08
7.3.310.0040.00416.32
7.3.300.0000.00716.24
7.3.290.0030.00316.32
7.3.280.0050.01216.32
7.3.260.0120.00516.40
7.3.240.0090.00916.40
7.2.110.0270.00014.88

preferences:
56.11 ms | 401 KiB | 5 Q