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 $d); } abstract class AbstractTest { public abstract function foo(D $d); } class TestAbstractContravariance extends AbstractTest { public function foo($d) {} } class TestAbstractCovariance extends AbstractTest { public function foo($d) {} } class TestInterfaceContravariance implements InterfaceTest { public function foo($d) {} } class TestInterfaceCovariance implements InterfaceTest { public function foo($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)
8.3.60.0110.01118.43
8.3.50.0070.00716.29
8.3.40.0120.00318.66
8.3.30.0090.00918.47
8.3.20.0080.00020.30
8.3.10.0040.00423.65
8.3.00.0050.00319.43
8.2.180.0040.01116.63
8.2.170.0070.00722.96
8.2.160.0100.00320.35
8.2.150.0050.00325.66
8.2.140.0110.00324.66
8.2.130.0030.00526.16
8.2.120.0060.00317.50
8.2.110.0030.00722.25
8.2.100.0070.00417.50
8.2.90.0050.00319.05
8.2.80.0080.00017.97
8.2.70.0000.00817.50
8.2.60.0030.00517.93
8.2.50.0030.00518.07
8.2.40.0030.00619.34
8.2.30.0000.00819.69
8.2.20.0000.00817.67
8.2.10.0000.00718.05
8.2.00.0000.00717.99
8.1.280.0130.01025.92
8.1.270.0100.01023.86
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.39
8.1.230.0060.00617.42
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0000.00817.00
8.1.180.0040.00418.10
8.1.170.0000.00918.65
8.1.160.0030.00322.00
8.1.150.0040.00418.69
8.1.140.0000.00917.38
8.1.130.0030.00317.54
8.1.120.0070.00017.44
8.1.110.0100.00017.36
8.1.100.0000.00717.42
8.1.90.0000.00717.27
8.1.80.0040.00417.33
8.1.70.0000.00717.36
8.1.60.0040.00417.40
8.1.50.0040.00417.45
8.1.40.0070.00017.45
8.1.30.0030.00617.51
8.1.20.0050.00317.58
8.1.10.0040.00417.39
8.1.00.0000.00817.28
8.0.300.0040.00418.77
8.0.290.0000.00716.63
8.0.280.0030.00318.29
8.0.270.0040.00417.05
8.0.260.0030.00317.18
8.0.250.0040.00416.89
8.0.240.0000.00716.89
8.0.230.0030.00516.77
8.0.220.0070.00016.83
8.0.210.0000.00716.80
8.0.200.0030.00516.84
8.0.190.0060.00316.88
8.0.180.0050.00316.86
8.0.170.0040.00416.72
8.0.160.0000.00716.86
8.0.150.0000.00816.76
8.0.140.0070.00016.67
8.0.130.0060.00013.20
8.0.120.0040.00416.76
8.0.110.0050.00316.79
8.0.100.0050.00216.65
8.0.90.0000.00816.69
8.0.80.0100.01016.75
8.0.70.0030.00616.70
8.0.60.0040.00416.69
8.0.50.0070.00016.82
8.0.30.0090.00916.98
8.0.20.0120.00517.40
8.0.10.0050.00216.90
8.0.00.0100.00816.59
7.4.330.0000.00515.08
7.4.320.0000.00816.35
7.4.300.0040.00416.32
7.4.290.0030.00316.45
7.4.280.0030.00516.40
7.4.270.0030.00316.37
7.4.260.0070.00016.52
7.4.250.0000.00716.38
7.4.240.0050.00216.53
7.4.230.0030.00316.62
7.4.220.0080.00816.52
7.4.210.0040.01116.49
7.4.200.0000.00716.55
7.4.160.0130.01016.38
7.4.150.0070.01417.40
7.4.140.0140.00517.86
7.4.130.0090.01616.23
7.4.120.0100.00616.38
7.4.110.0070.01816.27
7.4.100.0160.00616.27
7.4.90.0060.01716.32
7.4.80.0100.00719.39
7.4.70.0060.01816.50
7.4.60.0130.00316.34
7.4.50.0050.00016.05
7.4.40.0130.00316.51
7.4.30.0030.01416.47
7.4.10.0030.01614.96
7.4.00.0000.01914.96
7.3.330.0000.00713.22
7.3.320.0000.00513.21
7.3.310.0030.00316.04
7.3.300.0000.00716.20
7.3.290.0070.01016.21
7.3.280.0070.01016.19
7.3.270.0080.00817.40
7.3.260.0150.00916.32
7.3.240.0170.00316.36
7.3.230.0070.01416.39
7.3.210.0130.00316.25
7.3.200.0030.01516.45
7.3.190.0090.00916.36
7.3.180.0030.01316.41
7.3.170.0090.01316.27
7.3.160.0040.01116.27
7.3.130.0100.01014.76
7.3.120.0100.01014.59
7.3.110.0100.01014.89
7.3.100.0060.00914.59
7.3.90.0060.00314.48
7.3.80.0040.00814.63
7.3.70.0110.00014.81
7.3.60.0070.01114.75
7.3.50.0060.01014.64
7.3.40.0110.00314.28
7.3.30.0060.00314.79
7.3.20.0060.00616.50
7.3.10.0090.00616.43
7.3.00.0080.00416.48
7.2.330.0120.00616.59
7.2.320.0060.01316.61
7.2.310.0130.00716.72
7.2.300.0120.00616.29
7.2.290.0100.00716.48
7.2.260.0040.00714.87
7.2.250.0110.00815.05
7.2.240.0000.01315.05
7.2.230.0070.01114.96
7.2.220.0030.01514.96
7.2.210.0030.00914.79
7.2.200.0070.00715.04
7.2.190.0120.00314.85
7.2.180.0030.01515.04
7.2.170.0090.00614.80
7.2.160.0030.01314.96
7.2.150.0060.01016.67
7.2.140.0120.00616.50
7.2.130.0070.00316.78
7.2.120.0100.00316.73
7.2.110.0080.00816.66
7.2.100.0070.00716.80
7.2.90.0070.00716.93
7.2.80.0030.01016.82
7.2.70.0000.01416.73
7.2.60.0000.00916.69
7.2.50.0000.01516.59
7.2.40.0000.01816.70
7.2.30.0110.00416.93
7.2.20.0070.00716.64
7.2.10.0090.00616.50
7.2.00.0040.00417.01
7.1.330.0070.00715.26
7.1.320.0030.01315.58
7.1.310.0060.00615.45
7.1.300.0000.01815.45
7.1.290.0100.00715.48
7.1.280.0060.00915.59
7.1.270.0070.00715.68
7.1.260.0040.01015.55
7.1.250.0070.00715.49
7.1.240.0030.01015.77
7.1.230.0000.00815.43
7.1.220.0030.00915.46
7.1.210.0070.00715.45
7.1.200.0120.00015.43
7.1.190.0000.01215.72
7.1.180.0030.00715.46
7.1.170.0030.01015.49
7.1.160.0040.01015.51
7.1.150.0120.00315.52
7.1.140.0060.00615.36
7.1.130.0040.01115.68
7.1.120.0080.00015.66
7.1.110.0030.01015.38
7.1.100.0030.00915.50
7.1.90.0030.00815.80
7.1.80.0040.00415.68
7.1.70.0040.00815.52
7.1.60.0040.01115.35
7.1.50.0030.01015.76
7.1.40.0120.00315.39
7.1.30.0110.00315.55
7.1.20.0120.00315.56
7.1.10.0060.00915.63
7.1.00.0060.00615.68
7.0.330.0080.00315.23
7.0.320.0060.00915.16
7.0.310.0040.01115.19
7.0.300.0060.00615.05
7.0.290.0070.00715.18
7.0.280.0070.00715.18
7.0.270.0110.00415.49
7.0.260.0030.00915.38
7.0.250.0030.01015.04
7.0.240.0070.00415.23
7.0.230.0000.01315.38
7.0.220.0090.00315.18
7.0.210.0080.00315.14
7.0.200.0040.01114.98
7.0.190.0030.01015.29
7.0.180.0030.01015.27
7.0.170.0000.01515.25
7.0.160.0000.01015.25
7.0.150.0070.00715.06
7.0.140.0030.01015.07
7.0.130.0110.00015.29
7.0.120.0030.01015.20
7.0.110.0030.01315.18
7.0.100.0070.00715.12
7.0.90.0110.00015.22
7.0.80.0030.01015.41
7.0.70.0110.00415.23
7.0.60.0070.00715.17
7.0.50.0100.00315.24
7.0.40.0080.00013.40
7.0.30.0040.01113.41
7.0.20.0030.01013.08
7.0.10.0060.00613.16
7.0.00.0040.01113.30
5.6.400.0040.01113.82
5.6.390.0040.00714.45
5.6.380.0060.00913.78
5.6.370.0060.00814.12
5.6.360.0080.00614.16
5.6.350.0070.00713.64
5.6.340.0060.00914.13
5.6.330.0030.00614.23
5.6.320.0120.00414.10
5.6.310.0030.00914.32
5.6.300.0000.01414.33
5.6.290.0060.00614.02
5.6.280.0070.00713.89
5.6.270.0070.00314.21
5.6.260.0090.00613.85
5.6.250.0070.01014.06
5.6.240.0000.01214.16
5.6.230.0090.00613.89
5.6.220.0000.00914.07
5.6.210.0070.00714.12
5.6.200.0040.01414.27
5.6.190.0090.00414.06
5.6.180.0040.00714.06
5.6.170.0040.00714.35
5.6.160.0030.00614.32
5.6.150.0090.00613.83
5.6.140.0060.01014.09
5.6.130.0100.04116.13
5.6.120.0050.04917.59
5.6.110.0090.04817.47
5.6.100.0090.03417.57
5.6.90.0050.02817.56
5.6.80.0090.04217.12
5.6.70.0180.03817.36
5.6.60.0030.01414.09
5.6.50.0110.00713.98
5.6.40.0060.00613.89
5.6.30.0040.01214.18
5.6.20.0090.00613.88
5.6.10.0090.00614.14
5.6.00.0040.01113.89
5.5.380.0110.00013.98
5.5.370.0090.00313.85
5.5.360.0000.01113.90
5.5.350.0060.00914.42
5.5.340.0070.00714.06
5.5.330.0090.00314.20
5.5.320.0030.01313.84
5.5.310.0080.00814.30
5.5.300.0040.00414.29
5.5.290.0070.04316.05
5.5.280.0140.01717.43
5.5.270.0100.03017.31
5.5.260.0070.04717.39
5.5.250.0000.04317.48
5.5.240.0080.04016.98
5.5.230.0110.00414.02
5.5.220.0000.01613.68
5.5.210.0150.00313.83
5.5.200.0060.00613.84
5.5.190.0100.00714.09
5.5.180.0040.01113.75
5.5.170.0040.01213.65
5.5.160.0040.01114.07
5.5.150.0110.00313.69
5.5.140.0090.00613.78
5.5.130.0070.00713.84
5.5.120.0030.00913.82
5.5.110.0040.01114.00
5.5.100.0030.00513.87
5.5.90.0090.00613.57
5.5.80.0040.01113.86
5.5.70.0070.00714.01
5.5.60.0070.00414.21
5.5.50.0060.00314.07
5.5.40.0070.00714.00
5.5.30.0080.00414.21
5.5.20.0060.00914.04
5.5.10.0060.00613.64
5.5.00.0060.00914.01
5.4.450.0510.02615.15
5.4.440.0490.03114.96
5.4.430.0520.03214.99
5.4.420.0450.02815.15
5.4.410.0530.02615.19
5.4.400.0460.03114.96
5.4.390.0450.03814.86
5.4.380.0500.03315.07
5.4.370.0490.03114.92
5.4.360.0550.03315.03
5.4.350.0430.03315.07
5.4.340.0350.03214.88
5.4.330.0030.00710.44
5.4.320.0530.02514.97
5.4.310.0330.03015.15
5.4.300.0420.02614.99
5.4.290.0380.03114.80
5.4.280.0370.03014.87
5.4.270.0370.02814.97
5.4.260.0350.02814.87
5.4.250.0390.02714.90
5.4.240.0330.03314.95
5.4.230.0370.02914.79
5.4.220.0350.03315.08
5.4.210.0400.03314.98
5.4.200.0400.02715.08
5.4.190.0420.02914.86
5.4.180.0330.03114.92
5.4.170.0280.03514.75
5.4.160.0370.02814.96
5.4.150.0400.02714.95
5.4.140.0450.02213.63
5.4.130.0370.02813.68
5.4.120.0320.03113.68
5.4.110.0370.02613.60
5.4.100.0370.02713.43
5.4.90.0500.02413.63
5.4.80.0370.02813.65
5.4.70.0130.04213.61
5.4.60.0260.02113.73
5.4.50.0020.03413.41
5.4.40.0040.03813.60
5.4.30.0020.03413.52
5.4.20.0030.03513.42
5.4.10.0030.00310.78
5.4.00.0030.00510.88

preferences:
61.84 ms | 400 KiB | 5 Q