3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo {} $a = null; $f = new Foo($a = 123); var_dump($a); // NULL class FooC { function __constructor(){} } $b = null; $f = new FooC($b = 123); var_dump($b); // int(123)

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)
8.3.40.0140.00018.84
8.3.30.0040.01120.35
8.3.20.0070.00020.34
8.3.10.0070.00021.95
8.3.00.0040.00422.46
8.2.170.0110.00722.96
8.2.160.0100.00322.11
8.2.150.0030.00524.18
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00022.13
8.2.110.0030.00619.39
8.2.100.0040.00817.78
8.2.90.0000.00819.14
8.2.80.0060.00317.97
8.2.70.0030.00817.50
8.2.60.0080.00017.80
8.2.50.0030.00618.07
8.2.40.0040.00418.16
8.2.30.0050.00319.31
8.2.20.0040.00417.46
8.2.10.0050.00317.62
8.2.00.0000.00817.55
8.1.270.0050.00223.99
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0090.00021.37
8.1.230.0110.00017.42
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0090.00017.22
8.1.180.0030.00618.89
8.1.170.0040.00418.59
8.1.160.0080.00018.73
8.1.150.0000.01118.48
8.1.140.0070.00017.38
8.1.130.0030.00317.79
8.1.120.0040.00417.31
8.1.110.0050.00617.41
8.1.100.0000.00717.29
8.1.90.0050.00317.38
8.1.80.0000.00717.29
8.1.70.0030.00317.31
8.1.60.0060.00317.43
8.1.50.0050.00217.35
8.1.40.0000.00817.45
8.1.30.0000.00917.43
8.1.20.0050.00317.53
8.1.10.0000.00717.42
8.1.00.0000.00817.41
8.0.300.0090.00018.77
8.0.290.0070.00016.63
8.0.280.0000.00818.38
8.0.270.0070.00017.10
8.0.260.0000.00616.68
8.0.250.0000.00716.78
8.0.240.0090.00016.92
8.0.230.0070.00016.77
8.0.220.0000.00816.82
8.0.210.0000.00716.82
8.0.200.0000.00616.86
8.0.190.0070.00016.91
8.0.180.0070.00016.71
8.0.170.0040.00416.79
8.0.160.0070.00016.90
8.0.150.0080.00016.82
8.0.140.0000.00716.85
8.0.130.0000.00613.26
8.0.120.0070.00016.69
8.0.110.0030.00516.80
8.0.100.0030.00316.62
8.0.90.0040.00416.78
8.0.80.0120.00316.87
8.0.70.0020.00516.82
8.0.60.0040.00416.84
8.0.50.0080.00016.86
8.0.30.0120.01017.00
8.0.20.0100.00817.40
8.0.10.0070.00016.97
8.0.00.0090.00916.74
7.4.330.0020.00215.14
7.4.320.0030.00316.57
7.4.300.0000.00616.38
7.4.290.0030.00316.42
7.4.280.0000.00716.37
7.4.270.0000.00716.58
7.4.260.0060.00013.13
7.4.250.0040.00416.41
7.4.240.0030.00516.46
7.4.230.0030.00316.48
7.4.220.0120.00916.56
7.4.210.0110.00816.49
7.4.200.0000.00716.32
7.4.190.0000.00716.49
7.4.160.0060.00916.39
7.4.150.0160.00617.40
7.4.140.0130.00317.86
7.4.130.0100.00916.38
7.4.120.0060.01116.38
7.4.110.0090.00916.45
7.4.100.0000.01716.52
7.4.90.0100.00616.42
7.4.80.0150.00919.39
7.4.70.0070.01016.34
7.4.60.0080.00816.23
7.4.50.0060.00316.27
7.4.40.0060.00922.77
7.4.30.0070.01416.35
7.4.00.0070.01014.72
7.3.330.0000.00513.02
7.3.320.0000.00613.19
7.3.310.0040.00416.03
7.3.300.0040.00416.18
7.3.290.0000.01416.15
7.3.280.0080.00616.17
7.3.270.0180.00617.40
7.3.260.0070.01016.24
7.3.250.0090.00816.34
7.3.240.0070.01016.33
7.3.230.0090.00616.41
7.3.210.0070.01016.25
7.3.200.0090.00819.39
7.3.190.0070.01016.18
7.3.180.0030.01316.21
7.3.170.0060.00916.48
7.3.160.0070.01016.20
7.3.120.0030.01414.98
7.3.10.0070.01016.57
7.3.00.0090.00316.27
7.2.330.0070.01016.38
7.2.320.0110.00616.47
7.2.310.0130.00616.31
7.2.300.0030.01316.59
7.2.290.0130.00316.54
7.2.130.0080.00416.92
7.2.120.0050.00516.67
7.2.110.0060.00816.95
7.2.100.0090.00316.84
7.2.90.0030.01016.47
7.2.80.0050.01016.53
7.2.70.0060.00616.98
7.2.60.0060.01016.84
7.2.50.0060.00616.68
7.2.40.0030.01216.65
7.2.30.0060.01216.79
7.2.20.0070.01016.38
7.2.10.0070.00316.75
7.2.00.0050.00817.99
7.1.250.0060.00615.61
7.1.200.0070.00715.54
7.1.70.0060.00617.18
7.1.60.0050.00517.27
7.1.50.0030.01716.88
7.1.00.0000.03722.33
7.0.200.0030.01316.82
7.0.140.0130.06322.04
7.0.100.0170.08719.88
7.0.90.0100.08019.96
7.0.80.0070.07719.86
7.0.70.0130.07020.09
7.0.60.0170.08320.00
7.0.50.0070.08320.25
7.0.40.0070.07720.12
7.0.30.0100.08020.04
7.0.20.0130.07320.13
7.0.10.0070.07020.16
7.0.00.0100.08320.10
5.6.280.0070.06720.82
5.6.250.0170.05320.55
5.6.240.0030.07720.54
5.6.230.0070.07720.57
5.6.220.0130.05020.68
5.6.210.0100.07320.43
5.6.200.0070.08720.97
5.6.190.0070.08721.07
5.6.180.0130.07320.96
5.6.170.0200.04721.05
5.6.160.0070.08721.04
5.6.150.0100.08321.06
5.6.140.0130.06020.93
5.6.130.0030.07321.13
5.6.120.0000.08020.96
5.6.110.0100.06020.95
5.6.100.0130.07321.09
5.6.90.0100.07321.09
5.6.80.0030.08320.41
5.6.70.0100.06020.55
5.6.60.0000.07720.45
5.6.50.0130.06320.32
5.6.40.0100.04720.49
5.6.30.0100.07320.45
5.6.20.0100.08320.52
5.6.10.0070.08320.38
5.6.00.0170.05720.39
5.5.380.0070.04320.33
5.5.370.0170.07020.48
5.5.360.0100.08020.50
5.5.350.0070.06720.29
5.5.340.0030.08320.76
5.5.330.0030.08320.82
5.5.320.0070.07720.87
5.5.310.0170.06320.92
5.5.300.0130.07720.93
5.5.290.0130.09720.64
5.5.280.0100.07020.84
5.5.270.0100.08020.87
5.5.260.0130.08020.88
5.5.250.0030.09020.63
5.5.240.0100.08020.29
5.5.230.0100.07020.28
5.5.220.0000.06720.23
5.5.210.0000.08720.12
5.5.200.0000.07720.13
5.5.190.0100.08020.09
5.5.180.0030.08320.26
5.5.160.0070.06719.99
5.5.150.0100.06720.12
5.5.140.0030.07319.99
5.5.130.0100.07719.98
5.5.120.0100.06720.22
5.5.110.0030.08320.27
5.5.100.0100.05320.16
5.5.90.0100.07020.07
5.5.80.0070.08020.02
5.5.70.0100.07020.08
5.5.60.0100.03720.15
5.5.50.0170.03720.05
5.5.40.0100.07720.15
5.5.30.0070.07719.99
5.5.20.0170.06720.02
5.5.10.0030.08020.11
5.5.00.0100.07320.00
5.4.450.0200.07719.54
5.4.440.0100.07019.17
5.4.430.0070.07319.35
5.4.420.0100.05319.22
5.4.410.0100.06719.07
5.4.400.0170.04718.85
5.4.390.0070.06719.03
5.4.380.0030.08019.14
5.4.370.0100.04719.03
5.4.360.0030.07719.18
5.4.350.0130.07018.86
5.4.340.0030.07318.90
5.4.320.0000.08318.95
5.4.310.0100.05719.09
5.4.300.0030.07019.22
5.4.290.0030.07019.11
5.4.280.0070.07018.95
5.4.270.0100.08719.09
5.4.260.0100.07019.18
5.4.250.0170.07019.13
5.4.240.0030.05019.08
5.4.230.0070.07319.04
5.4.220.0070.05719.08
5.4.210.0070.06719.13
5.4.200.0100.04319.04
5.4.190.0030.07019.13
5.4.180.0070.08319.04
5.4.170.0130.06719.22
5.4.160.0130.06718.83
5.4.150.0070.08019.16
5.4.140.0030.08716.48
5.4.130.0030.08016.46
5.4.120.0030.07016.46
5.4.110.0070.07016.52
5.4.100.0030.05016.52
5.4.90.0100.03316.56
5.4.80.0170.06716.38
5.4.70.0100.06716.52
5.4.60.0070.07316.39
5.4.50.0070.07716.48
5.4.40.0100.04716.46
5.4.30.0070.06016.36
5.4.20.0100.07316.37
5.4.10.0070.07316.47
5.4.00.0030.07715.86
5.3.290.0130.06314.70
5.3.280.0070.07314.72
5.3.270.0130.06014.63
5.3.260.0030.07714.56
5.3.250.0100.04714.53
5.3.240.0170.05714.66
5.3.230.0100.08314.61
5.3.220.0130.06714.62
5.3.210.0030.08014.68
5.3.200.0030.05714.62
5.3.190.0030.07714.54
5.3.180.0030.06314.57
5.3.170.0200.06714.62
5.3.160.0030.08014.62
5.3.150.0070.07314.61
5.3.140.0130.06714.61
5.3.130.0100.07314.50
5.3.120.0130.06714.60
5.3.110.0100.06714.48
5.3.100.0130.07014.01
5.3.90.0070.07313.98
5.3.80.0070.04014.00
5.3.70.0070.07714.12
5.3.60.0100.07714.06
5.3.50.0100.06314.07
5.3.40.0070.07713.93
5.3.30.0070.06013.96
5.3.20.0070.07313.70
5.3.10.0070.07013.77
5.3.00.0100.06713.75
5.2.170.0070.05311.64
5.2.160.0070.04311.64
5.2.150.0070.06011.64
5.2.140.0030.05011.64
5.2.130.0070.06311.64
5.2.120.0070.05011.64
5.2.110.0000.05711.64
5.2.100.0100.05711.64
5.2.90.0100.06011.64
5.2.80.0070.04311.64
5.2.70.0000.06711.64
5.2.60.0030.06711.64
5.2.50.0070.06011.64
5.2.40.0030.05311.64
5.2.30.0000.06311.64
5.2.20.0030.05011.64
5.2.10.0100.05711.64
5.2.00.0030.06311.64
5.1.60.0100.03711.64
5.1.50.0070.04011.64
5.1.40.0030.04711.64
5.1.30.0030.04011.64
5.1.20.0000.04011.64
5.1.10.0030.04011.64
5.1.00.0000.03311.64
5.0.50.0030.02311.64
5.0.40.0000.03311.64
5.0.30.0000.04011.64
5.0.20.0000.03711.64
5.0.10.0030.04711.64
5.0.00.0070.04011.64
4.4.90.0030.02711.64
4.4.80.0000.03711.64
4.4.70.0030.03311.64
4.4.60.0100.02711.64
4.4.50.0070.02011.64
4.4.40.0000.02711.64
4.4.30.0000.03011.64
4.4.20.0030.01311.64
4.4.10.0030.03311.64
4.4.00.0070.04311.64
4.3.110.0030.02311.64
4.3.100.0070.03011.64
4.3.90.0000.02711.64
4.3.80.0000.04311.64
4.3.70.0070.03311.64
4.3.60.0100.02311.64
4.3.50.0100.03011.64
4.3.40.0000.03711.64
4.3.30.0030.03311.64
4.3.20.0070.01711.64
4.3.10.0030.02711.64
4.3.00.0000.02711.64

preferences:
40.35 ms | 400 KiB | 5 Q