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(true));

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)
8.3.40.0160.00918.75
8.3.30.0220.00318.92
8.3.20.0070.00720.31
8.3.10.0100.00323.66
8.3.00.0140.00019.25
8.2.170.0190.00322.96
8.2.160.0160.01020.35
8.2.150.0100.00324.18
8.2.140.0080.00624.66
8.2.130.0140.00726.16
8.2.120.0140.00020.96
8.2.110.0090.00620.80
8.2.100.0140.00317.78
8.2.90.0060.00617.96
8.2.80.0030.00617.97
8.2.70.0030.00617.63
8.2.60.0030.00717.92
8.2.50.0040.00818.07
8.2.40.0070.00318.22
8.2.30.0040.00818.30
8.2.20.0040.00717.88
8.2.10.0110.00018.07
8.2.00.0080.00317.81
8.1.270.0080.00423.96
8.1.260.0140.00026.35
8.1.250.0120.00028.09
8.1.240.0160.01622.53
8.1.230.0110.00721.10
8.1.220.0100.00017.78
8.1.210.0080.00318.90
8.1.200.0090.00317.48
8.1.190.0070.00417.48
8.1.180.0070.00319.01
8.1.170.0060.00318.55
8.1.160.0100.00022.08
8.1.150.0030.00718.88
8.1.140.0000.01017.38
8.1.130.0060.00317.80
8.1.120.0040.00717.48
8.1.110.0100.00017.55
8.1.100.0070.00317.50
8.1.90.0030.00617.55
8.1.80.0000.01117.48
8.1.70.0060.00317.45
8.1.60.0040.00717.55
8.1.50.0120.00017.50
8.1.40.0030.00617.65
8.1.30.0110.00017.59
8.1.20.0040.00817.61
8.1.10.0060.00617.64
8.1.00.0070.00317.41
8.0.300.0000.01019.96
8.0.290.0060.00616.75
8.0.280.0050.00518.51
8.0.270.0070.00417.33
8.0.260.0050.00517.34
8.0.250.0000.01016.96
8.0.240.0030.00917.02
8.0.230.0060.00316.89
8.0.220.0060.00316.97
8.0.210.0100.00016.94
8.0.200.0030.00616.95
8.0.190.0000.01016.91
8.0.180.0070.00316.85
8.0.170.0090.00316.86
8.0.160.0070.00716.96
8.0.150.0060.00316.83
8.0.140.0100.00016.75
8.0.130.0030.00613.39
8.0.120.0130.00016.83
8.0.110.0100.00016.88
8.0.100.0060.00316.89
8.0.90.0030.00716.91
8.0.80.0120.01616.89
8.0.70.0100.00016.95
8.0.60.0040.00717.03
8.0.50.0060.00317.00
8.0.30.0310.01817.04
8.0.20.0250.02417.40
8.0.10.0000.01016.99
8.0.00.0300.01316.72
7.4.330.0070.00015.07
7.4.320.0060.00316.64
7.4.300.0090.00016.57
7.4.290.0000.01216.51
7.4.280.0070.00316.59
7.4.270.0000.00916.50
7.4.260.0030.00616.58
7.4.250.0030.00616.48
7.4.240.0040.00616.57
7.4.230.0030.00716.32
7.4.220.0100.02116.60
7.4.210.0160.00916.70
7.4.200.0060.00316.57
7.4.160.0190.01616.66
7.4.150.0230.01617.40
7.4.140.0240.01717.86
7.4.130.0320.00716.41
7.4.120.0190.02016.68
7.4.110.0170.02316.31
7.4.100.0330.00616.54
7.4.90.0250.01116.49
7.4.80.0180.02719.39
7.4.70.0200.01616.55
7.4.60.0160.01916.54
7.4.50.0060.00616.41
7.4.40.0250.00916.52
7.4.30.0230.02316.54
7.3.330.0040.00413.30
7.3.320.0000.00813.06
7.3.310.0090.00016.43
7.3.300.0060.00316.25
7.3.290.0140.01116.22
7.3.280.0100.01716.30
7.3.270.0210.03117.40
7.3.260.0250.01416.53
7.3.250.0280.02416.46
7.3.240.0180.02116.54
7.3.230.0200.02016.56
7.3.210.0300.00716.27
7.3.200.0250.01119.39
7.3.190.0140.01316.13
7.3.180.0140.01716.22
7.3.170.0240.00716.56
7.3.160.0100.02616.73
7.2.330.0220.01916.57
7.2.320.0210.02416.59
7.2.310.0160.01616.70
7.2.300.0150.01816.46
7.2.290.0200.01316.55
7.2.100.0640.01214.53
7.2.90.0740.00614.79
7.2.80.0680.00314.57
7.2.70.0240.01415.01
7.2.60.0460.00915.27
7.2.50.1140.01015.15
7.2.40.0240.01814.94
7.1.220.0300.00513.70
7.1.210.0350.01714.02
7.1.200.0250.00513.97
7.1.190.0720.00713.76
7.1.180.0360.01714.06
7.1.170.0810.01013.88
7.1.160.0870.01613.93
7.0.310.0200.01613.61
7.0.300.0770.01313.30
7.0.290.0940.00913.55
5.6.380.0180.01514.03
5.6.370.0130.01314.45
5.6.360.0210.01214.16

preferences:
33.95 ms | 400 KiB | 5 Q