3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class A { abstract public function foo(A $a): A; } class B extends A { public function foo(A $b): B { } }

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)
8.3.60.0060.01216.61
8.3.50.0150.00016.04
8.3.40.0040.01118.42
8.3.30.0000.01418.42
8.3.20.0050.00321.92
8.3.10.0050.00221.68
8.3.00.0080.00020.77
8.2.180.0100.00718.29
8.2.170.0070.00722.96
8.2.160.0070.00722.13
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0080.00022.25
8.2.120.0040.00426.35
8.2.110.0100.00020.54
8.2.100.0080.00417.78
8.2.90.0000.00819.09
8.2.80.0000.00817.97
8.2.70.0040.00417.50
8.2.60.0030.00617.80
8.2.50.0080.00318.10
8.2.40.0060.00320.47
8.2.30.0050.00320.89
8.2.20.0040.00417.80
8.2.10.0000.00717.84
8.2.00.0070.00017.95
8.1.280.0110.01125.92
8.1.270.0050.00322.05
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0070.00322.50
8.1.230.0090.00319.05
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0030.00617.10
8.1.190.0030.00617.10
8.1.180.0060.00318.10
8.1.170.0000.00818.56
8.1.160.0040.00418.95
8.1.150.0040.00418.62
8.1.140.0040.00419.39
8.1.130.0070.00018.80
8.1.120.0030.00317.29
8.1.110.0030.00517.30
8.1.100.0040.00417.21
8.1.90.0000.00817.31
8.1.80.0070.00017.34
8.1.70.0070.00017.38
8.1.60.0040.00417.43
8.1.50.0030.00517.36
8.1.40.0040.00417.27
8.1.30.0000.00717.47
8.1.20.0000.01017.37
8.1.10.0030.00617.24
8.1.00.0080.00017.32
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0000.00718.32
8.0.270.0050.00217.03
8.0.260.0030.00516.69
8.0.250.0030.00316.75
8.0.240.0040.00416.63
8.0.230.0070.00016.70
8.0.220.0030.00316.74
8.0.210.0040.00416.78
8.0.200.0000.00616.86
8.0.190.0030.00716.73
8.0.180.0030.00316.70
8.0.170.0030.00316.80
8.0.160.0080.00016.59
8.0.150.0030.00316.61
8.0.140.0000.00716.75
8.0.130.0000.00613.27
8.0.120.0000.00716.71
8.0.110.0040.00416.82
8.0.100.0000.00816.63
8.0.90.0040.00416.75
8.0.80.0060.01116.71
8.0.70.0050.00316.63
8.0.60.0030.00516.75
8.0.50.0030.00516.85
8.0.30.0090.00816.92
8.0.20.0060.01317.40
8.0.10.0050.00316.71
8.0.00.0100.00716.45
7.4.330.0020.00215.55
7.4.320.0030.00316.47
7.4.300.0030.00316.35
7.4.290.0030.00616.45
7.4.280.0000.00716.43
7.4.270.0040.00416.22
7.4.260.0000.00513.17
7.4.250.0080.00016.34
7.4.240.0040.00416.42
7.4.230.0030.00316.28
7.4.220.0110.01116.36
7.4.210.0090.01116.46
7.4.200.0030.00316.48
7.4.160.0080.00816.24
7.4.150.0110.00617.40
7.4.140.0120.00817.86
7.4.130.0090.01016.45
7.4.120.0100.00816.35
7.4.110.0030.01316.39
7.4.100.0120.00916.45
7.4.90.0070.01116.24
7.4.80.0110.00719.39
7.4.70.0090.00616.38
7.4.60.0120.00416.51
7.4.50.0000.01216.14
7.4.40.0030.01416.47
7.4.30.0150.00316.26
7.3.330.0070.00013.21
7.3.320.0060.00013.25
7.3.310.0030.00516.10
7.3.300.0040.00416.25
7.3.290.0110.00416.23
7.3.280.0090.00816.21
7.3.270.0120.00617.40
7.3.260.0180.01516.32
7.3.250.0090.00916.38
7.3.240.0110.00916.32
7.3.230.0070.01116.20
7.3.210.0110.00616.29
7.3.200.0080.00816.28
7.3.190.0090.00616.34
7.3.180.0060.01516.51
7.3.170.0080.00816.22
7.3.160.0090.00616.21
7.2.330.0090.00916.36
7.2.320.0150.00416.38
7.2.310.0090.01316.52
7.2.300.0130.00916.15
7.2.290.0070.01416.48
7.1.60.0400.01032.90
7.1.50.0500.00732.59
7.1.40.0500.01032.50
7.1.30.0470.01032.60
7.1.20.0400.01332.58
7.1.10.0330.00714.42
7.1.00.1200.00714.37
7.0.200.0370.00014.69
7.0.190.0300.00714.78
7.0.180.0330.00714.18
7.0.170.0270.01014.21
7.0.160.0300.00714.21
7.0.150.0300.00714.46
7.0.140.0300.00714.55
7.0.130.0400.00014.57
7.0.120.0270.01014.42
7.0.110.0370.00314.23
7.0.100.0270.01314.16
7.0.90.0330.01014.44
7.0.80.0330.00714.28
7.0.70.0370.00714.33
7.0.60.0400.00314.11
7.0.50.0300.01014.47
7.0.40.0330.00314.57
7.0.30.0300.01014.53
7.0.20.0300.01014.47
7.0.10.0330.00714.22
7.0.00.0530.00314.21

preferences:
46.27 ms | 401 KiB | 5 Q