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run code in 300+ PHP versions simultaneously
<?php namespace Foo\Bar; class Baz { public function __construct() { echo "Hello"; } } namespace Roo\Too; var_dump(__NAMESPACE__); var_dump(class_exists('Foo\Bar\Baz'));

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)
8.3.70.0190.00316.73
8.3.60.0100.00318.55
8.3.50.0140.00721.92
8.3.40.0070.00718.80
8.3.30.0070.00719.00
8.3.20.0040.00720.34
8.3.10.0040.00423.66
8.3.00.0040.00418.83
8.2.190.0110.00716.58
8.2.180.0190.00018.09
8.2.170.0060.01222.96
8.2.160.0040.01122.13
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0070.00021.05
8.2.110.0090.00322.20
8.2.100.0040.00717.59
8.2.90.0000.00817.50
8.2.80.0040.00418.53
8.2.70.0060.00317.91
8.2.60.0060.00617.91
8.2.50.0000.00818.10
8.2.40.0080.00019.20
8.2.30.0040.00419.24
8.2.20.0040.00417.61
8.2.10.0070.00017.75
8.2.00.0000.00717.44
8.1.280.0140.00325.92
8.1.270.0080.00018.89
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0040.00423.84
8.1.230.0080.00321.04
8.1.220.0000.00917.74
8.1.210.0030.00618.77
8.1.200.0040.00817.13
8.1.190.0060.00317.23
8.1.180.0040.00419.05
8.1.170.0000.00818.41
8.1.160.0080.00018.92
8.1.150.0050.00218.75
8.1.140.0040.00417.32
8.1.130.0000.00717.80
8.1.120.0040.00417.35
8.1.110.0040.00417.35
8.1.100.0030.00317.20
8.1.90.0000.00717.23
8.1.80.0040.00417.29
8.1.70.0050.00217.17
8.1.60.0040.00417.35
8.1.50.0040.00417.29
8.1.40.0030.00617.20
8.1.30.0030.00617.59
8.1.20.0040.00417.53
8.1.10.0040.00417.28
8.1.00.0040.00417.20
8.0.300.0040.00418.77
8.0.290.0090.00016.63
8.0.280.0000.00718.30
8.0.270.0030.00317.17
8.0.260.0050.00317.05
8.0.250.0070.00016.74
8.0.240.0040.00416.71
8.0.230.0040.00416.72
8.0.220.0000.00716.67
8.0.210.0030.00316.73
8.0.200.0070.00016.69
8.0.190.0050.00216.88
8.0.180.0070.00016.75
8.0.170.0030.00516.73
8.0.160.0040.00316.60
8.0.150.0070.00016.67
8.0.140.0000.00716.54
8.0.130.0000.00613.22
8.0.120.0000.00816.69
8.0.110.0040.00416.67
8.0.100.0040.00416.67
8.0.90.0070.00016.65
8.0.80.0120.00316.75
8.0.70.0030.00516.55
8.0.60.0040.00416.76
8.0.50.0040.00416.71
8.0.30.0070.01016.70
8.0.20.0130.00717.40
8.0.10.0000.00716.90
8.0.00.0090.00916.59
7.4.330.0050.00015.03
7.4.320.0060.00016.41
7.4.300.0000.00616.41
7.4.290.0030.00316.39
7.4.280.0040.00416.50
7.4.270.0030.00316.37
7.4.260.0050.00416.33
7.4.250.0070.00016.40
7.4.240.0020.00516.33
7.4.230.0030.00316.44
7.4.220.0070.01016.45
7.4.210.0110.00416.26
7.4.200.0040.00416.26
7.4.160.0110.00316.53
7.4.150.0030.01517.40
7.4.140.0050.01117.86
7.4.130.0080.01116.44
7.4.120.0070.01116.34
7.4.110.0110.00716.39
7.4.100.0160.00616.32
7.4.90.0090.00916.23
7.4.80.0150.00619.39
7.4.70.0120.00916.33
7.4.60.0070.01016.31
7.4.50.0030.00516.19
7.4.40.0000.01616.51
7.4.30.0040.01816.51
7.4.00.0130.00315.05
7.3.330.0060.00013.03
7.3.320.0030.00313.18
7.3.310.0060.00016.20
7.3.300.0000.00616.17
7.3.290.0050.00916.18
7.3.280.0050.01416.16
7.3.270.0090.01517.40
7.3.260.0110.00616.39
7.3.250.0150.00416.30
7.3.240.0070.01016.00
7.3.230.0070.01016.39
7.3.210.0060.01016.41
7.3.200.0120.00619.39
7.3.190.0140.00816.24
7.3.180.0110.00416.41
7.3.170.0060.01416.34
7.3.160.0070.01016.07
7.3.10.0070.00716.16
7.3.00.0070.00416.16
7.2.330.0160.00316.20
7.2.320.0060.01016.43
7.2.310.0060.01016.45
7.2.300.0040.01116.66
7.2.290.0070.01016.27
7.2.130.0000.01516.45
7.2.120.0030.00916.70
7.2.110.0120.00416.77
7.2.100.0090.00616.63
7.2.90.0250.00416.78
7.2.80.0090.00316.40
7.2.70.0070.00716.61
7.2.60.0180.00516.21
7.2.50.0090.01416.66
7.2.40.0030.01416.74
7.2.30.0090.00616.57
7.2.20.0140.01016.89
7.2.10.0180.00616.59
7.2.00.0110.00917.87
7.1.250.0100.00715.50
7.1.200.0070.00315.53
7.1.100.0100.00717.88
7.1.70.0060.01017.00
7.1.60.0100.01419.22
7.1.50.0120.00816.85
7.1.00.0030.07322.46
7.0.200.0000.00716.69
7.0.140.0030.07022.21
7.0.60.0030.08720.03
7.0.50.0170.07317.94
7.0.40.0130.08020.09
7.0.30.0270.05720.33
7.0.20.0230.04320.09
7.0.10.0100.06320.23
7.0.00.0070.04320.27
5.6.280.0130.06320.87
5.6.210.0070.05320.71
5.6.200.0070.08318.16
5.6.190.0000.04720.39
5.6.180.0200.04020.63
5.6.170.0230.05020.48
5.6.160.0100.03320.62
5.6.150.0070.05018.18
5.6.140.0100.07318.23
5.6.130.0200.02718.16
5.6.120.0030.04320.97
5.6.110.0070.06321.14
5.6.100.0030.08721.00
5.6.90.0030.04321.00
5.6.80.0170.06720.38
5.5.350.0270.06720.44
5.5.340.0100.05717.96
5.5.330.0070.03720.21
5.5.320.0370.03720.32
5.5.310.0230.04320.34
5.5.300.0100.08017.98
5.5.290.0130.07318.04
5.5.280.0070.04720.90
5.5.270.0130.08020.86
5.5.260.0130.08020.76
5.5.250.0070.07020.49
5.5.240.0030.08320.12
5.4.450.0130.05719.59
5.4.440.0000.06319.66
5.4.430.0170.06019.31
5.4.420.0970.04019.55
5.4.410.0730.06019.54
5.4.400.1130.06019.26
5.4.390.0830.07019.22
5.4.380.0200.06018.62
5.4.370.0270.06718.47
5.4.360.0200.06318.52
5.4.350.0270.06318.75
5.4.340.0300.05718.71
5.4.320.0370.05318.75
5.4.310.0300.05018.48
5.4.300.0300.05318.74
5.4.290.0470.06718.79
5.4.280.0330.05018.75
5.4.270.0300.05318.52
5.4.260.0300.05718.63
5.4.250.0270.05718.41
5.4.240.0330.05718.73
5.4.230.0330.05318.71
5.4.220.0330.04718.70
5.4.210.0300.06318.74
5.4.200.0370.05016.58
5.4.190.0470.06318.47
5.4.180.0370.07718.55
5.4.170.0270.05718.45
5.4.160.0330.04718.71
5.4.150.0330.04718.67
5.4.140.0300.05016.46
5.4.130.0370.04716.26
5.4.120.0300.05716.42
5.4.110.0330.05016.17
5.4.100.0370.04716.19
5.4.90.0230.06016.30
5.4.80.0230.05016.24
5.4.70.0330.06016.27
5.4.60.0370.05016.27
5.4.50.0200.05716.20
5.4.40.0200.05716.25
5.4.30.0300.04716.39
5.4.20.0270.05016.30
5.4.10.0300.04716.24
5.4.00.0330.05015.80
5.3.290.0400.05714.75
5.3.280.0430.06014.77
5.3.270.0300.05314.63
5.3.260.0370.05014.82
5.3.250.0300.05314.60
5.3.240.0330.05014.64
5.3.230.0330.04714.61
5.3.220.0400.04314.74
5.3.210.0370.05014.56
5.3.200.0330.04314.61
5.3.190.0400.04314.74
5.3.180.0270.05314.54
5.3.170.0370.04714.69
5.3.160.0330.05014.60
5.3.150.0300.05714.79
5.3.140.0370.06314.65
5.3.130.0370.04714.77
5.3.120.0230.06314.59
5.3.110.0200.06314.60
5.3.100.0330.04714.05
5.3.90.0330.05014.11
5.3.80.0270.05714.18
5.3.70.0370.04714.02
5.3.60.0370.05714.06
5.3.50.0300.05314.15
5.3.40.0370.04713.93
5.3.30.0230.05314.12
5.3.20.0430.04713.73
5.3.10.0500.04313.82
5.3.00.0400.04313.77
5.2.170.0200.05011.05
5.2.160.0330.05011.20
5.2.150.0370.05711.07
5.2.140.0370.05311.17
5.2.130.0230.04711.03
5.2.120.0200.04711.01
5.2.110.0300.04011.12
5.2.100.0170.04311.02
5.2.90.0300.05711.07
5.2.80.0230.04011.13
5.2.70.0330.03711.07
5.2.60.0230.04011.10
5.2.50.0270.04011.07
5.2.40.0330.03311.05
5.2.30.0130.05010.98
5.2.20.0230.03710.91
5.2.10.0270.03310.87
5.2.00.0200.04710.87
5.1.60.0230.03010.05
5.1.50.0200.0509.98
5.1.40.0200.04310.10
5.1.30.0270.03310.47
5.1.20.0130.04310.38
5.1.10.0230.03010.04
5.1.00.0170.03710.16
5.0.50.0100.0308.64
5.0.40.0170.0338.43
5.0.30.0200.0338.25
5.0.20.0130.0308.23
5.0.10.0130.0278.20
5.0.00.0070.0478.29
4.4.90.0130.0276.51
4.4.80.0100.0306.51
4.4.70.0200.0206.51
4.4.60.0100.0206.51
4.4.50.0070.0236.51
4.4.40.0070.0376.51
4.4.30.0100.0206.51
4.4.20.0030.0306.51
4.4.10.0170.0236.51
4.4.00.0170.0306.51
4.3.110.0270.0136.51
4.3.100.0100.0206.51
4.3.90.0070.0206.51
4.3.80.0130.0376.51
4.3.70.0070.0236.51
4.3.60.0100.0206.51
4.3.50.0100.0276.51
4.3.40.0030.0376.51
4.3.30.0170.0206.51
4.3.20.0030.0236.51
4.3.10.0070.0276.51
4.3.00.0100.0237.30

preferences:
53.76 ms | 401 KiB | 5 Q