3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo\Space { class Foo { const SOME_CONSTANT = 'Works!'; } } namespace Other\Space { $class = \Foo\Space\Foo::class; $constant = 'SOME_CONSTANT'; var_dump(constant("{$class}::{$constant}")); }

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)
8.3.60.0160.00318.08
8.3.50.0040.01816.53
8.3.40.0070.00718.77
8.3.30.0070.00718.59
8.3.20.0050.00322.09
8.3.10.0030.00521.73
8.3.00.0040.00419.56
8.2.180.0070.01118.29
8.2.170.0090.00622.96
8.2.160.0070.01020.58
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0080.00017.63
8.2.110.0060.00322.11
8.2.100.0080.00317.63
8.2.90.0040.00419.23
8.2.80.0080.00017.97
8.2.70.0060.00317.63
8.2.60.0040.00418.04
8.2.50.0070.00318.07
8.2.40.0030.00621.07
8.2.30.0040.00417.92
8.2.20.0000.00817.63
8.2.10.0080.00018.05
8.2.00.0040.00418.04
8.1.280.0170.00325.92
8.1.270.0080.00020.13
8.1.260.0060.00326.35
8.1.250.0080.00028.09
8.1.240.0070.00419.24
8.1.230.0100.00017.42
8.1.220.0070.00317.74
8.1.210.0040.00418.77
8.1.200.0090.00017.10
8.1.190.0000.00817.10
8.1.180.0050.00218.10
8.1.170.0000.00918.52
8.1.160.0040.00422.04
8.1.150.0070.00018.75
8.1.140.0050.00317.32
8.1.130.0040.00417.62
8.1.120.0040.00317.43
8.1.110.0060.00317.27
8.1.100.0060.00317.37
8.1.90.0040.00417.38
8.1.80.0040.00417.41
8.1.70.0030.00317.41
8.1.60.0000.00817.49
8.1.50.0030.00517.43
8.1.40.0040.00417.34
8.1.30.0040.00417.59
8.1.20.0040.00417.57
8.1.10.0050.00217.50
8.1.00.0080.00017.33
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0000.00718.43
8.0.270.0000.00717.24
8.0.260.0000.00617.24
8.0.250.0040.00416.98
8.0.240.0030.00516.93
8.0.230.0000.00616.88
8.0.220.0070.00016.89
8.0.210.0000.00716.76
8.0.200.0070.00016.80
8.0.190.0000.00816.96
8.0.180.0000.00716.91
8.0.170.0000.00816.82
8.0.160.0000.00716.84
8.0.150.0040.00416.91
8.0.140.0030.00416.71
8.0.130.0060.00013.24
8.0.120.0040.00416.74
8.0.110.0070.00016.77
8.0.100.0040.00416.87
8.0.90.0000.00716.81
8.0.80.0120.00616.86
8.0.70.0050.00316.80
8.0.60.0040.00416.82
8.0.50.0090.00016.78
8.0.30.0100.00816.93
8.0.20.0080.01217.40
8.0.10.0040.00416.92
8.0.00.0120.00716.58
7.4.330.0020.00215.09
7.4.320.0000.00716.47
7.4.300.0030.00316.58
7.4.290.0000.00716.40
7.4.280.0050.00316.56
7.4.270.0000.00716.45
7.4.260.0040.00416.51
7.4.250.0000.00916.31
7.4.240.0000.00716.52
7.4.230.0030.00616.27
7.4.220.0060.01916.45
7.4.210.0030.01116.43
7.4.200.0030.00316.48
7.4.160.0000.01516.24
7.4.150.0070.01017.40
7.4.140.0110.01017.86
7.4.130.0120.01016.47
7.4.120.0110.01016.44
7.4.110.0130.01016.32
7.4.100.0110.00716.43
7.4.90.0120.00916.36
7.4.80.0130.00319.39
7.4.70.0040.01516.41
7.4.60.0040.01116.38
7.4.50.0040.00016.28
7.4.40.0140.00716.58
7.4.30.0100.00716.55
7.4.00.0030.01314.76
7.3.330.0060.00013.29
7.3.320.0030.00313.36
7.3.310.0040.00416.32
7.3.300.0030.00316.29
7.3.290.0070.00016.26
7.3.280.0060.01016.21
7.3.270.0060.01017.40
7.3.260.0070.01016.60
7.3.250.0070.01116.27
7.3.240.0140.00716.45
7.3.230.0130.00916.39
7.3.210.0120.00616.29
7.3.200.0100.00719.39
7.3.190.0100.00716.19
7.3.180.0240.00316.55
7.3.170.0120.01016.27
7.3.160.0120.00316.25
7.2.330.0060.01216.67
7.2.320.0060.01216.54
7.2.310.0060.01116.71
7.2.300.0080.00816.65
7.2.290.0140.00316.62
7.2.110.0100.00316.58
7.2.60.0330.00316.79
7.2.00.0030.01019.20
7.1.200.0000.01115.77
7.1.100.0070.00317.89
7.1.70.0060.00317.07
7.1.60.0110.01420.03
7.1.50.0000.02216.62
7.1.00.0030.07722.46
7.0.200.0100.00716.69
7.0.60.0100.08020.00
7.0.50.0100.07717.89
7.0.40.0130.08320.13
7.0.30.0400.05020.15
7.0.20.0300.07020.07
7.0.10.0070.08720.26
7.0.00.0100.08720.21
5.6.280.0030.06721.07
5.6.210.0070.05320.48
5.6.200.0070.08318.29
5.6.190.0070.08720.42
5.6.180.4100.04320.45
5.6.170.0270.07720.51
5.6.160.0070.03720.54
5.6.150.0170.06718.16
5.6.140.0130.07318.21
5.6.130.0030.07318.11
5.6.120.0000.09020.86
5.6.110.0030.09021.02
5.6.100.0170.07321.01
5.6.90.0100.08021.04
5.6.80.0130.06720.37
5.6.70.4070.04020.36
5.5.350.0100.08320.41
5.5.340.0070.08318.04
5.5.330.0070.07320.27
5.5.320.3830.05020.36
5.5.310.0200.04320.23
5.5.300.0100.08017.98
5.5.290.0070.03717.95
5.5.280.0070.05720.87
5.5.270.0000.04320.79
5.5.260.0030.07020.79
5.5.250.0070.09320.78
5.5.240.0330.06720.29
5.4.450.0730.05019.58
5.4.440.0570.06319.34
5.4.430.0570.06019.47
5.4.420.0870.06719.55
5.4.410.0800.08019.18
5.4.400.0700.07018.88
5.4.390.0200.06319.26
5.4.380.0230.06019.30
5.4.370.0370.05019.29
5.4.360.0570.07319.01
5.4.350.0570.05018.86
5.4.340.0570.06319.01
5.4.320.0570.05719.13
5.4.310.0600.04719.16
5.4.300.0600.04719.15
5.4.290.0570.05319.20
5.4.280.0570.05019.23
5.4.270.0430.06319.25
5.4.260.0130.05019.37
5.4.250.0100.05719.22
5.4.240.0400.05019.13
5.4.230.0630.05019.27
5.4.220.0700.05719.29
5.4.210.0600.05019.18
5.4.200.0730.04716.91
5.4.190.0800.08019.02
5.4.180.0700.05319.08
5.4.170.0700.05718.88
5.4.160.0400.07019.13
5.4.150.0970.06018.96
5.4.140.0730.05716.61
5.4.130.0830.04316.50
5.4.120.0530.05316.61
5.4.110.0230.04716.56
5.4.100.0130.04716.36
5.4.90.0400.05016.39
5.4.80.0670.04016.44
5.4.70.0730.06016.45
5.4.60.0130.06316.47
5.4.50.0030.05316.30
5.4.40.0200.05716.53
5.4.30.0600.04716.47
5.4.20.0400.05316.47
5.4.10.0070.05316.49
5.4.00.0100.04715.98

preferences:
44.61 ms | 400 KiB | 5 Q