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run code in 300+ PHP versions simultaneously
<?php namespace Foo\Bar\Baz { $closureBeforeDefined = function () { return relativeFunction(); }; } namespace { function relativeFunction() { return 'IN GLOBAL NAMESPACE'; } } namespace Foo\Bar\Baz { var_dump($closureBeforeDefined()); function relativeFunction() { return 'IN RELATIVE NAMESPACE'; } $closureAfterDefined = function () { return A_RELATIVE_CONSTANT; }; var_dump($closureBeforeDefined()); var_dump($closureAfterDefined()); }

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)
8.3.60.0070.00718.43
8.3.50.0090.01122.92
8.3.40.0140.00718.84
8.3.30.0110.00319.21
8.3.20.0080.00020.29
8.3.10.0040.00423.65
8.3.00.0060.00317.50
8.2.180.0090.00917.00
8.2.170.0130.00722.96
8.2.160.0110.00320.38
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0000.00720.95
8.2.110.0060.00321.04
8.2.100.0080.00817.84
8.2.90.0040.00419.05
8.2.80.0050.00317.97
8.2.70.0030.00517.75
8.2.60.0000.00817.93
8.2.50.0040.00418.10
8.2.40.0000.00720.51
8.2.30.0040.00417.95
8.2.20.0000.00717.64
8.2.10.0090.00017.93
8.2.00.0070.00017.78
8.1.280.0040.01425.92
8.1.270.0090.00024.02
8.1.260.0000.00726.35
8.1.250.0060.00328.09
8.1.240.0080.00022.68
8.1.230.0080.00317.83
8.1.220.0050.00317.76
8.1.210.0050.00318.77
8.1.200.0050.00517.22
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0040.00418.58
8.1.160.0000.00722.09
8.1.150.0000.00718.95
8.1.140.0040.00417.51
8.1.130.0000.00717.95
8.1.120.0000.00717.55
8.1.110.0070.00017.45
8.1.100.0070.00017.44
8.1.90.0000.00717.49
8.1.80.0040.00417.47
8.1.70.0000.00717.43
8.1.60.0000.00817.48
8.1.50.0000.00717.44
8.1.40.0050.00317.43
8.1.30.0090.00017.62
8.1.20.0040.00417.50
8.1.10.0040.00417.56
8.1.00.0000.00817.59
8.0.300.0000.00718.77
8.0.290.0080.00016.75
8.0.280.0000.00718.36
8.0.270.0040.00417.26
8.0.260.0000.00617.27
8.0.250.0000.00717.02
8.0.240.0000.00916.99
8.0.230.0030.00316.86
8.0.220.0030.00316.92
8.0.210.0070.00016.91
8.0.200.0070.00016.93
8.0.190.0000.00717.02
8.0.180.0030.00416.92
8.0.170.0050.00316.89
8.0.160.0000.00816.84
8.0.150.0000.00716.93
8.0.140.0030.00416.90
8.0.130.0050.00013.43
8.0.120.0030.00616.91
8.0.110.0040.00417.02
8.0.100.0000.00717.02
8.0.90.0040.00416.84
8.0.80.0060.01216.95
8.0.70.0040.00416.87
8.0.60.0050.00317.03
8.0.50.0040.00416.90
8.0.30.0050.01517.12
8.0.20.0130.00617.40
8.0.10.0040.00417.04
8.0.00.0120.01016.78
7.4.330.0000.00515.00
7.4.320.0030.00316.51
7.4.300.0000.00616.59
7.4.290.0070.00016.53
7.4.280.0040.00416.45
7.4.270.0030.00316.52
7.4.260.0070.00016.57
7.4.250.0050.00216.46
7.4.240.0000.00716.47
7.4.230.0040.00416.49
7.4.220.0070.01416.63
7.4.210.0070.00716.62
7.4.200.0000.00816.64
7.4.160.0060.01116.63
7.4.150.0110.01117.40
7.4.140.0100.00717.86
7.4.130.0100.00616.52
7.4.120.0050.01116.71
7.4.110.0100.01016.45
7.4.100.0170.00016.64
7.4.90.0090.00916.50
7.4.80.0080.01519.39
7.4.70.0070.01016.31
7.4.60.0160.00016.57
7.4.50.0040.00416.40
7.4.40.0070.01016.64
7.4.30.0100.01016.44
7.4.00.0070.00715.18
7.3.330.0030.00313.38
7.3.320.0040.00413.34
7.3.310.0090.00016.29
7.3.300.0030.00316.18
7.3.290.0110.00316.26
7.3.280.0080.00916.32
7.3.270.0190.00017.40
7.3.260.0100.00716.69
7.3.250.0160.00616.45
7.3.240.0190.00616.33
7.3.230.0040.01916.55
7.3.210.0170.00016.30
7.3.200.0150.00419.39
7.3.190.0210.00016.29
7.3.180.0130.00316.29
7.3.170.0060.01016.31
7.3.160.0060.00916.51
7.3.10.0000.01016.47
7.3.00.0120.00016.48
7.2.330.0140.01116.38
7.2.320.0050.01816.73
7.2.310.0120.00416.77
7.2.300.0060.01016.78
7.2.290.0060.00916.61
7.2.130.0080.00017.03
7.2.120.0000.01416.85
7.2.110.0040.00716.77
7.2.100.0030.01016.95
7.2.90.0040.01117.01
7.2.80.0030.00916.81
7.2.70.0000.01116.75
7.2.60.0040.00917.01
7.2.50.0040.00717.04
7.2.40.0040.00816.77
7.2.30.0040.01116.77
7.2.20.0000.01516.95
7.2.10.0090.00317.00
7.2.00.0040.00817.98
7.1.250.0060.00315.68
7.1.200.0000.01415.66
7.1.100.0070.00718.24
7.1.70.0050.00216.99
7.1.60.0030.01419.40
7.1.50.0070.01516.92
7.1.00.0130.06722.33
7.0.200.0090.00016.83
7.0.140.0030.07322.09
7.0.60.0070.05719.91
7.0.50.0030.04717.87
7.0.40.0130.05720.16
7.0.30.0370.02720.10
7.0.20.0400.04720.16
7.0.10.0070.08720.30
7.0.00.0000.09020.23
5.6.280.0070.07021.13
5.6.210.0100.08020.65
5.6.200.0070.04018.19
5.6.190.0030.05020.47
5.6.180.3230.04020.61
5.6.170.0200.04020.57
5.6.160.0070.08020.50
5.6.150.0030.04318.22
5.6.140.0100.07318.28
5.6.130.0070.08018.12
5.6.120.0070.05720.90
5.6.110.0070.06320.97
5.6.100.0230.06720.96
5.6.90.0030.05021.00
5.6.80.0100.07720.37
5.6.70.3600.03320.42
5.5.350.0200.06720.45
5.5.340.0070.03717.95
5.5.330.0130.06320.44
5.5.320.4000.04320.20
5.5.310.0300.07320.42
5.5.300.0030.04717.98
5.5.290.0070.08017.98
5.5.280.0070.04020.69
5.5.270.0200.06720.88
5.5.260.0030.07720.88
5.5.250.0070.07020.61
5.5.240.0200.05020.17
5.4.450.0200.03719.48
5.4.440.0230.04019.17
5.4.430.0300.05019.46
5.4.420.0370.04019.42
5.4.410.0300.03719.29
5.4.400.0230.03319.15
5.4.390.0470.03318.99
5.4.380.0670.07018.47
5.4.370.0900.06718.54
5.4.360.0970.04018.68
5.4.350.0670.05718.68
5.4.340.0730.06318.63
5.4.320.0030.03912.51
5.4.310.0080.03912.51
5.4.300.0090.04112.51
5.4.290.0080.04312.50
5.4.280.0070.03412.40
5.4.270.0070.04212.40
5.4.260.0090.04112.40
5.4.250.0030.04112.41
5.4.240.0030.04812.41
5.4.230.0070.04012.40
5.4.220.0090.03712.39
5.4.210.0060.03812.39
5.4.200.0060.03812.39
5.4.190.0080.03612.39
5.4.180.0050.03912.39
5.4.170.0050.03712.40
5.4.160.0060.03512.39
5.4.150.0040.04112.39
5.4.140.0070.04012.08
5.4.130.0100.04212.06
5.4.120.0070.03412.02
5.4.110.0040.03712.02
5.4.100.0070.03412.02
5.4.90.0080.03812.01
5.4.80.0040.04612.02
5.4.70.0060.04112.01
5.4.60.0070.03412.01
5.4.50.0080.04212.01
5.4.40.0090.03912.00
5.4.30.0070.04111.99
5.4.20.0040.04112.00
5.4.10.0100.03312.00
5.4.00.0080.03811.48
5.3.290.0100.04012.80
5.3.280.0060.04212.71
5.3.270.0130.04112.72
5.3.260.0100.04612.72
5.3.250.0090.04312.72
5.3.240.0070.04812.72
5.3.230.0070.03712.71
5.3.220.0060.05312.68
5.3.210.0080.03812.68
5.3.200.0070.04212.68
5.3.190.0070.04812.68
5.3.180.0070.04312.68
5.3.170.0060.04412.67
5.3.160.0100.04412.67
5.3.150.0100.04612.67
5.3.140.0090.04212.66
5.3.130.0090.04212.66
5.3.120.0090.04312.66
5.3.110.0060.03912.66
5.3.100.0080.04212.12
5.3.90.0080.04412.10
5.3.80.0100.04612.09
5.3.70.0070.03612.09
5.3.60.0080.04512.08
5.3.50.0040.03912.02
5.3.40.0050.04012.03
5.3.30.0070.04011.98
5.3.20.0060.04011.77
5.3.10.0060.04511.73
5.3.00.0080.03411.72
5.2.170.0090.0339.18
5.2.160.0090.0339.18
5.2.150.0080.0359.18
5.2.140.0050.0379.18
5.2.130.0070.0349.14
5.2.120.0080.0359.14
5.2.110.0060.0289.15
5.2.100.0040.0319.14
5.2.90.0060.0279.14
5.2.80.0060.0309.14
5.2.70.0130.0349.14
5.2.60.0050.0339.09
5.2.50.0060.0369.06
5.2.40.0030.0359.03
5.2.30.0050.0399.01
5.2.20.0070.0309.00
5.2.10.0040.0298.92
5.2.00.0060.0288.79
5.1.60.0050.0238.07
5.1.50.0030.0258.06
5.1.40.0080.0218.05
5.1.30.0060.0238.40
5.1.20.0030.0318.42
5.1.10.0050.0298.14
5.1.00.0070.0318.14
5.0.50.0040.0326.62
5.0.40.0050.0216.48
5.0.30.0090.0326.29
5.0.20.0060.0316.27
5.0.10.0070.0276.24
5.0.00.0040.0356.23
4.4.90.0030.0204.78
4.4.80.0030.0164.75
4.4.70.0050.0194.75
4.4.60.0020.0204.75
4.4.50.0050.0234.77
4.4.40.0030.0244.71
4.4.30.0040.0224.76
4.4.20.0060.0164.84
4.4.10.0030.0194.85
4.4.00.0030.0264.75
4.3.110.0040.0194.67
4.3.100.0040.0244.67
4.3.90.0040.0134.63
4.3.80.0040.0244.58
4.3.70.0000.0194.63
4.3.60.0020.0174.63
4.3.50.0050.0184.63
4.3.40.0040.0254.54
4.3.30.0040.0243.28
4.3.20.0000.0253.26
4.3.10.0030.0163.22
4.3.00.0070.01315.97

preferences:
48.36 ms | 401 KiB | 5 Q