3v4l.org

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

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)
8.3.60.0200.00316.49
8.3.50.0180.01022.88
8.3.40.0130.01018.71
8.3.30.0170.00719.21
8.3.20.0100.00320.52
8.3.10.0130.00023.49
8.3.00.0070.00719.25
8.2.180.0180.00616.88
8.2.170.0190.00822.96
8.2.160.0080.01620.30
8.2.150.0100.00324.18
8.2.140.0090.00324.66
8.2.130.0070.00726.16
8.2.120.0070.00721.02
8.2.110.0110.00422.09
8.2.100.0110.01117.91
8.2.90.0070.00319.25
8.2.80.0040.00717.97
8.2.70.0070.00417.75
8.2.60.0100.00018.16
8.2.50.0040.00818.07
8.2.40.0070.00418.28
8.2.30.0070.00418.25
8.2.20.0070.00417.83
8.2.10.0080.00418.11
8.2.00.0070.00317.87
8.1.280.0200.00325.92
8.1.270.0110.00423.91
8.1.260.0110.00026.35
8.1.250.0080.00428.09
8.1.240.0120.00424.02
8.1.230.0070.01019.16
8.1.220.0080.00317.80
8.1.210.0070.00318.77
8.1.200.0060.00617.35
8.1.190.0070.00317.35
8.1.180.0070.00318.84
8.1.170.0030.00718.65
8.1.160.0070.00322.07
8.1.150.0030.00718.94
8.1.140.0030.00717.66
8.1.130.0030.00618.02
8.1.120.0030.00617.62
8.1.110.0030.00617.60
8.1.100.0030.00617.59
8.1.90.0030.00717.51
8.1.80.0100.00017.57
8.1.70.0030.00717.45
8.1.60.0080.00417.79
8.1.50.0070.00317.54
8.1.40.0080.00317.68
8.1.30.0060.00617.74
8.1.20.0130.00017.68
8.1.10.0100.00017.62
8.1.00.0070.00317.64
8.0.300.0060.00318.77
8.0.290.0080.00317.00
8.0.280.0070.00418.59
8.0.270.0070.00417.39
8.0.260.0050.00517.35
8.0.250.0060.00316.97
8.0.240.0070.00417.11
8.0.230.0030.00617.06
8.0.220.0040.00417.03
8.0.210.0030.00617.07
8.0.200.0000.01017.11
8.0.190.0030.01017.09
8.0.180.0100.00017.07
8.0.170.0030.00716.98
8.0.160.0090.00617.07
8.0.150.0030.00617.04
8.0.140.0030.00816.90
8.0.130.0090.00013.36
8.0.120.0090.00316.98
8.0.110.0100.00016.96
8.0.100.0030.00616.97
8.0.90.0030.00617.07
8.0.80.0100.01617.02
8.0.70.0110.00016.94
8.0.60.0000.01016.98
8.0.50.0100.00017.04
8.0.30.0220.01717.26
8.0.20.0240.01517.40
8.0.10.0050.00517.11
8.0.00.0150.02416.83
7.4.330.0040.00415.00
7.4.320.0070.00316.76
7.4.300.0030.00716.69
7.4.290.0060.00616.64
7.4.280.0060.00616.63
7.4.270.0000.00816.41
7.4.260.0060.00313.38
7.4.250.0030.00616.62
7.4.240.0070.00316.63
7.4.230.0030.00616.76
7.4.220.0180.01416.64
7.4.210.0170.01816.68
7.4.200.0060.00316.65
7.4.160.0230.01616.60
7.4.150.0270.01217.40
7.4.140.0230.01517.86
7.4.130.0250.01916.61
7.4.120.0250.01416.67
7.4.110.0230.01316.58
7.4.100.0280.01416.70
7.4.90.0170.02016.64
7.4.80.0160.02219.39
7.4.70.0220.01916.55
7.4.60.0110.02216.64
7.4.50.0030.00716.50
7.4.40.0260.01316.47
7.4.30.0180.01716.70
7.4.00.0040.01814.93
7.3.330.0000.00813.32
7.3.320.0080.00013.38
7.3.310.0070.00416.41
7.3.300.0030.00616.28
7.3.290.0190.00616.37
7.3.280.0140.01616.31
7.3.270.0320.01417.40
7.3.260.0420.01416.63
7.3.250.0280.01516.56
7.3.240.0110.02816.39
7.3.230.0130.02316.68
7.3.210.0240.01416.61
7.3.200.0130.02019.39
7.3.190.0150.01716.27
7.3.180.0270.00316.35
7.3.170.0240.00716.39
7.3.160.0190.01516.41
7.2.330.0220.02616.52
7.2.320.0190.02016.91
7.2.310.0170.01216.75
7.2.300.0190.01516.46
7.2.290.0220.00916.86
7.2.60.0030.02316.89
7.2.00.0110.00719.42
7.1.200.0190.00315.66
7.1.100.0080.00818.27
7.1.70.0100.00016.74
7.1.60.0170.01319.40
7.1.50.0160.01016.83
7.0.200.0080.00416.82

preferences:
30.56 ms | 401 KiB | 5 Q