3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A {} class B extends A {} class C extends B {} class D {} interface InterfaceTest { public function foo($d); } abstract class AbstractTest { public abstract function foo($d); } class TestAbstractContravariance extends AbstractTest { public function foo($d) : D {} } class TestAbstractCovariance extends AbstractTest { public function foo($d) : D {} } class TestInterfaceContravariance implements InterfaceTest { public function foo($d) : D {} } class TestInterfaceCovariance implements InterfaceTest { public function foo($d) : D {} }

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)
8.3.40.0060.00918.71
8.3.30.0140.00018.42
8.3.20.0040.00420.30
8.3.10.0050.00321.81
8.3.00.0040.00419.31
8.2.170.0100.00322.96
8.2.160.0100.00320.35
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00317.50
8.2.110.0090.00020.92
8.2.100.0100.00017.84
8.2.90.0040.00419.22
8.2.80.0000.00817.97
8.2.70.0000.00817.50
8.2.60.0040.00417.80
8.2.50.0000.00918.07
8.2.40.0000.00819.52
8.2.30.0040.00419.83
8.2.20.0000.00717.66
8.2.10.0080.00018.03
8.2.00.0040.00417.98
8.1.270.0040.00420.20
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0090.00020.94
8.1.230.0080.00417.58
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0030.00617.22
8.1.190.0000.00817.13
8.1.180.0060.00318.10
8.1.170.0030.00518.45
8.1.160.0030.00322.01
8.1.150.0040.00418.87
8.1.140.0060.00317.37
8.1.130.0000.00717.54
8.1.120.0040.00417.43
8.1.110.0070.00317.43
8.1.100.0040.00417.40
8.1.90.0040.00417.38
8.1.80.0000.00717.45
8.1.70.0070.00017.41
8.1.60.0040.00417.55
8.1.50.0050.00317.36
8.1.40.0080.00017.32
8.1.30.0030.00517.53
8.1.20.0060.00317.59
8.1.10.0050.00217.36
8.1.00.0000.00717.23
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.38
8.0.270.0000.00817.08
8.0.260.0030.00318.29
8.0.250.0000.00816.85
8.0.240.0040.00416.82
8.0.230.0000.00816.77
8.0.220.0000.00716.67
8.0.210.0040.00416.80
8.0.200.0100.00016.80
8.0.190.0040.00416.89
8.0.180.0000.00716.81
8.0.170.0050.00316.76
8.0.160.0070.00016.74
8.0.150.0000.00716.79
8.0.140.0070.00016.75
8.0.130.0030.00313.25
8.0.120.0000.00816.81
8.0.110.0040.00416.73
8.0.100.0070.00016.90
8.0.90.0000.00716.73
8.0.80.0100.01016.76
8.0.70.0000.00816.81
8.0.60.0000.00716.69
8.0.50.0000.00716.78
8.0.30.0090.00816.93
8.0.20.0110.01417.40
8.0.10.0040.00416.94
8.0.00.0100.00816.63
7.4.330.0050.00015.08
7.4.320.0030.00316.52
7.4.300.0000.00816.45
7.4.290.0030.00316.50
7.4.280.0080.00016.53
7.4.270.0030.00316.58
7.4.260.0030.00316.48
7.4.250.0050.00216.33
7.4.240.0020.00516.52
7.4.230.0000.00716.48
7.4.220.0100.00616.33
7.4.210.0060.00816.33
7.4.200.0030.00316.27
7.4.160.0060.01016.54
7.4.150.0070.01017.40
7.4.140.0060.01217.86
7.4.130.0130.00616.38
7.4.120.0110.00616.42
7.4.110.0120.01216.36
7.4.100.0060.01716.54
7.4.90.0140.00316.33
7.4.80.0130.00319.39
7.4.70.0080.01316.43
7.4.60.0100.00616.41
7.4.50.0000.00516.35
7.4.40.0130.00316.32
7.4.30.0090.00916.39
7.4.00.0090.00614.77
7.3.330.0030.00313.06
7.3.320.0000.00613.19
7.3.310.0070.00016.14
7.3.300.0000.00716.14
7.3.290.0050.01116.20
7.3.280.0080.01016.20
7.3.270.0060.01317.40
7.3.260.0030.01316.38
7.3.250.0090.01016.23
7.3.240.0110.00616.32
7.3.230.0130.00716.39
7.3.210.0100.01016.41
7.3.200.0110.00716.22
7.3.190.0120.00616.16
7.3.180.0060.01316.51
7.3.170.0170.00016.27
7.3.160.0100.01016.22
7.3.10.0120.00016.66
7.3.00.0080.00016.33
7.2.330.0080.00916.30
7.2.320.0090.01216.66
7.2.310.0130.00316.58
7.2.300.0090.00916.68
7.2.290.0180.00016.57
7.2.130.0040.00416.66
7.2.120.0040.00716.84
7.2.110.0110.00316.73
7.2.100.0060.00616.72
7.2.90.0030.01016.78
7.2.80.0130.00016.73
7.2.70.0090.00316.48
7.2.60.0080.00516.75
7.2.50.0030.00816.85
7.2.40.0040.00816.70
7.2.30.0000.00916.91
7.2.20.0040.00816.64
7.2.10.0040.00816.69
7.2.00.0090.00217.89
7.1.250.0070.00315.82
7.1.200.0000.00715.71
7.1.100.0060.00618.01
7.1.70.0100.01016.75
7.1.60.0170.00319.17
7.1.50.0080.00416.82
7.1.00.0030.07722.36
7.0.200.0040.00716.66
7.0.60.0030.04719.97
7.0.50.0070.07017.87
7.0.40.0000.05020.11
7.0.30.0530.06320.07
7.0.20.0300.04720.24
7.0.10.0130.07720.12
7.0.00.0070.04320.16
5.6.280.0000.03321.10
5.6.210.0100.05720.70
5.6.200.0070.04018.13
5.6.190.0070.05720.63
5.6.180.0200.05320.50
5.6.170.0230.08020.52
5.6.160.0070.08320.54
5.6.150.0070.06318.17
5.6.140.0030.07718.19
5.6.130.0030.08318.19
5.6.120.0070.07721.02
5.6.110.0000.04721.00
5.6.100.0030.07020.98
5.6.90.0030.04321.00
5.6.80.0030.08720.30
5.6.70.0230.06020.38
5.5.350.0270.07720.39
5.5.340.0030.04317.99
5.5.330.0070.08720.19
5.5.320.0030.07720.42
5.5.310.0200.04320.24
5.5.300.0130.07718.04
5.5.290.0000.04317.99
5.5.280.0130.07720.81
5.5.270.0370.06320.77
5.5.260.0170.07720.80
5.5.250.0030.04020.62
5.5.240.0230.07320.13
5.4.450.0770.06719.48
5.4.440.0900.05719.61
5.4.430.0900.05319.58
5.4.420.0930.04719.61
5.4.410.0930.05319.26
5.4.400.0870.05019.26
5.4.390.0970.04719.30
5.4.380.0670.05319.28
5.4.370.0700.05019.01
5.4.360.0730.05319.31
5.4.350.0730.05319.14
5.4.340.0800.05318.98
5.4.320.0930.05719.13
5.4.310.0930.04319.29
5.4.300.0700.05319.28
5.4.290.0630.05719.37
5.4.280.0670.05319.28
5.4.270.0730.05019.06
5.4.260.0670.05319.15
5.4.250.0730.04719.01
5.4.240.0870.04719.14
5.4.230.0600.05719.28
5.4.220.0630.05719.12
5.4.210.0700.04719.25
5.4.200.0670.06018.87
5.4.190.0670.06018.97
5.4.180.0770.05319.21
5.4.170.0670.05019.25
5.4.160.0670.05718.99
5.4.150.0670.05319.24
5.4.140.0770.05716.61
5.4.130.0830.04016.77
5.4.120.0700.05716.44
5.4.110.0830.05316.64
5.4.100.0770.05716.66
5.4.90.0900.04716.68
5.4.80.0730.04016.57
5.4.70.0130.03716.55
5.4.60.0300.03716.34
5.4.50.0030.07016.53
5.4.40.0000.03716.51
5.4.30.0030.03016.56
5.4.20.0070.03016.52

preferences:
55.31 ms | 400 KiB | 5 Q