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run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); class Base { public function __construct(A $a) { } } class A{} class B{} class Concrete extends Base { public function __construct(B $b) { } } new Concrete(new 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)
8.3.60.0150.00318.06
8.3.50.0150.00321.21
8.3.40.0100.01018.68
8.3.30.0070.00718.91
8.3.20.0040.00420.11
8.3.10.0060.00321.95
8.3.00.0040.00422.50
8.2.180.0150.00616.38
8.2.170.0130.00722.96
8.2.160.0140.00019.08
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0170.00326.16
8.2.120.0050.00319.36
8.2.110.0050.00521.03
8.2.100.0120.00317.66
8.2.90.0040.00417.50
8.2.80.0080.00017.97
8.2.70.0060.00317.80
8.2.60.0030.00617.80
8.2.50.0060.00318.10
8.2.40.0080.00020.55
8.2.30.0080.00017.82
8.2.20.0050.00217.40
8.2.10.0000.00717.55
8.2.00.0000.00717.55
8.1.280.0070.01025.92
8.1.270.0060.00322.20
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0090.00024.03
8.1.230.0090.00619.09
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0000.00917.23
8.1.190.0070.00316.98
8.1.180.0040.00418.10
8.1.170.0030.00618.45
8.1.160.0000.00722.13
8.1.150.0090.00018.48
8.1.140.0040.00417.26
8.1.130.0030.00517.81
8.1.120.0000.00717.37
8.1.110.0040.00417.35
8.1.100.0000.00717.37
8.1.90.0030.00517.38
8.1.80.0040.00417.33
8.1.70.0000.00617.26
8.1.60.0000.00817.40
8.1.50.0050.00317.49
8.1.40.0000.00717.34
8.1.30.0000.00817.55
8.1.20.0000.00817.56
8.1.10.0040.00417.45
8.1.00.0080.00017.38
8.0.300.0050.00321.41
8.0.290.0070.00316.75
8.0.280.0030.00318.34
8.0.270.0030.00317.06
8.0.260.0060.00016.79
8.0.250.0030.00316.84
8.0.240.0000.00716.96
8.0.230.0040.00416.90
8.0.220.0040.00416.78
8.0.210.0030.00316.81
8.0.200.0000.00716.79
8.0.190.0050.00516.87
8.0.180.0000.00716.84
8.0.170.0000.00716.71
8.0.160.0040.00416.80
8.0.150.0040.00416.87
8.0.140.0050.00316.63
8.0.130.0060.00013.21
8.0.120.0030.00616.75
8.0.110.0070.00016.88
8.0.100.0000.00716.70
8.0.90.0040.00416.69
8.0.80.0070.01416.87
8.0.70.0040.00416.66
8.0.60.0030.00516.65
8.0.50.0000.00716.65
8.0.30.0130.00617.08
8.0.20.0110.00917.40
8.0.10.0050.00317.00
8.0.00.0100.01116.58
7.4.330.0000.00515.02
7.4.320.0030.00316.45
7.4.300.0000.00716.48
7.4.290.0000.00716.54
7.4.280.0070.00416.52
7.4.270.0030.00316.56
7.4.260.0090.00016.34
7.4.250.0030.00616.49
7.4.240.0060.00216.50
7.4.230.0030.00316.61
7.4.220.0190.00616.48
7.4.210.0060.01016.52
7.4.200.0040.00416.32
7.4.190.0000.00716.68
7.4.160.0060.00916.39
7.4.150.0060.01217.40
7.4.140.0120.00717.86
7.4.130.0100.00816.49
7.4.120.0080.00816.37
7.4.110.0090.00916.41
7.4.100.0180.00016.51
7.4.90.0070.01716.49
7.4.80.0100.00719.39
7.4.70.0110.00716.32
7.4.60.0150.00916.35
7.4.50.0000.00816.43
7.4.40.0040.01122.77
7.4.30.0090.00716.66
7.4.00.0060.00615.04
7.3.330.0060.00213.24
7.3.320.0050.00013.07
7.3.310.0060.00016.27
7.3.300.0000.00616.27
7.3.290.0000.01416.22
7.3.280.0080.00816.17
7.3.270.0100.00617.40
7.3.260.0070.01016.07
7.3.250.0090.00916.27
7.3.240.0170.00016.27
7.3.230.0090.00816.39
7.3.210.0170.00016.15
7.3.200.0060.00916.41
7.3.190.0060.00916.22
7.3.180.0090.00616.13
7.3.170.0040.01216.27
7.3.160.0100.00616.47
7.3.120.0080.00314.73
7.3.10.0080.00816.57
7.3.00.0060.00616.23
7.2.330.0130.00716.41
7.2.320.0110.00816.58
7.2.310.0100.00616.38
7.2.300.0090.00616.61
7.2.290.0030.01616.58
7.2.130.0110.00416.77
7.2.120.0100.00716.88
7.2.110.0070.01016.60
7.2.100.0000.01116.61
7.2.90.0040.00916.59
7.2.80.0060.00816.95
7.2.70.0030.00917.01
7.2.60.0040.00816.44
7.2.50.0000.01516.61
7.2.40.0030.00616.87
7.2.30.0030.01316.91
7.2.20.0000.01616.83
7.2.10.0080.00416.88
7.2.00.0070.01118.01
7.1.250.0070.01015.73
7.1.100.0000.01117.62
7.1.70.0080.00516.85
7.1.60.0130.01019.82
7.1.50.0060.01616.98
7.1.00.0100.06722.43
7.0.200.0030.00316.66
7.0.140.0030.07321.96
7.0.60.0130.06719.78
7.0.50.0070.05017.83
7.0.40.0030.07320.21
7.0.30.0270.08320.21
7.0.20.0300.07720.30
7.0.10.0300.09020.12
7.0.00.0100.06320.10
5.6.280.0030.07320.89
5.6.210.0100.04720.53
5.6.200.0070.06718.23
5.6.190.0070.07720.58
5.6.180.4130.03720.61
5.6.170.0300.06020.52
5.6.160.0100.06320.46
5.6.150.0070.07018.11
5.6.140.0070.05718.11
5.6.130.0070.07318.11
5.6.120.0070.03721.02
5.6.110.0100.08021.14
5.6.100.0170.07721.00
5.6.90.0100.05321.00
5.6.80.0070.08020.41
5.6.70.0300.07020.38
5.5.350.0030.04020.34
5.5.340.0170.03718.08
5.5.330.0100.03720.21
5.5.320.0200.04020.30
5.5.310.0300.07020.35
5.5.300.0070.04017.97
5.5.290.0000.04717.96
5.5.280.0030.04320.78
5.5.270.0030.08720.77
5.5.260.0100.07720.88
5.5.250.0100.03720.72
5.5.240.0070.08020.12
5.4.450.0170.05019.59
5.4.440.0730.06019.17
5.4.430.0800.06019.46
5.4.420.0800.05719.47
5.4.410.0770.05319.04
5.4.400.1200.04718.73
5.4.390.1100.05318.78
5.4.380.0270.05018.74
5.4.370.0270.06018.78
5.4.360.0200.06318.51
5.4.350.0230.05718.61
5.4.340.0300.05018.73
5.4.320.0040.04212.51
5.4.310.0060.04012.51
5.4.300.0050.03712.51
5.4.290.0040.04012.50
5.4.280.0040.04012.40
5.4.270.0080.04312.40
5.4.260.0170.05318.91
5.4.250.0170.05018.84
5.4.240.0170.04718.86
5.4.230.0130.06718.84
5.4.220.0070.06718.89
5.4.210.0170.06018.68
5.4.200.0200.06319.00
5.4.190.0130.07018.79
5.4.180.0070.05319.00
5.4.170.0100.06319.00
5.4.160.0070.08018.77
5.4.150.0170.06318.83
5.4.140.0170.04316.45
5.4.130.0130.06016.44
5.4.120.0130.04316.64
5.4.110.0170.05716.39
5.4.100.0200.05716.36
5.4.90.0130.05016.43
5.4.80.0100.06716.44
5.4.70.0130.05316.26
5.4.60.0130.06716.32
5.4.50.0130.06316.41
5.4.40.0030.06016.43
5.4.30.0070.05716.22
5.4.20.0170.04316.25
5.4.10.0130.06316.19
5.4.00.0100.04715.80
5.3.290.0100.05312.80
5.3.280.0230.06314.61
5.3.270.0070.05014.82
5.3.260.0100.06014.51
5.3.250.0070.05014.61
5.3.240.0170.05014.43
5.3.230.0100.06714.77
5.3.220.0070.08014.66
5.3.210.0000.06014.39
5.3.200.0170.06014.65
5.3.190.0070.05314.54
5.3.180.0170.05714.57
5.3.170.0100.05014.73
5.3.160.0170.05714.54
5.3.150.0100.06714.57
5.3.140.0230.05314.54
5.3.130.0130.06314.63
5.3.120.0070.07714.38
5.3.110.0070.07714.57
5.3.100.0130.06314.12
5.3.90.0030.05714.00
5.3.80.0030.06013.85
5.3.70.0100.05014.20
5.3.60.0000.05314.00
5.3.50.0130.04714.12
5.3.40.0070.05014.12
5.3.30.0070.05014.13
5.3.20.0100.06013.92
5.3.10.0030.05013.87
5.3.00.0030.06013.73
5.2.170.0070.04011.32
5.2.160.0100.05311.12
5.2.150.0130.05311.34
5.2.140.0070.04711.21
5.2.130.0030.05311.09
5.2.120.0130.03311.18
5.2.110.0030.04711.19
5.2.100.0130.04011.27
5.2.90.0100.05711.18
5.2.80.0070.04011.18
5.2.70.0100.05311.16
5.2.60.0070.04011.12
5.2.50.0070.04310.93
5.2.40.0030.04310.98
5.2.30.0170.03310.96
5.2.20.0070.05011.02
5.2.10.0100.03710.94
5.2.00.0070.04310.80
5.1.60.0030.03310.20
5.1.50.0100.03010.07
5.1.40.0100.04010.07
5.1.30.0070.04310.42
5.1.20.0070.05010.34
5.1.10.0070.03310.13
5.1.00.0130.02710.17
5.0.50.0030.0408.70
5.0.40.0070.0278.02
5.0.30.0030.0438.13
5.0.20.0030.0377.98
5.0.10.0070.0308.04
5.0.00.0030.0537.93
4.4.90.0070.0237.27
4.4.80.0030.0277.27
4.4.70.0000.0337.27
4.4.60.0070.0177.27
4.4.50.0070.0277.27
4.4.40.0030.0407.27
4.4.30.0030.0207.27
4.4.20.0070.0237.27
4.4.10.0000.0237.27
4.4.00.0000.0377.27
4.3.110.0030.0307.27
4.3.100.0030.0307.27
4.3.90.0030.0237.27
4.3.80.0000.0437.27
4.3.70.0000.0237.27
4.3.60.0000.0307.27
4.3.50.0100.0207.27
4.3.40.0030.0307.27
4.3.30.0000.0337.27
4.3.20.0000.0307.27
4.3.10.0030.0277.27
4.3.00.0130.0306.91

preferences:
40.66 ms | 401 KiB | 5 Q