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run code in 300+ PHP versions simultaneously
<?php namespace Nested\Name; class Test { public static function speak(string $name) { var_dump($name); // is the same as Name::class var_dump(class_exists($name)); // to see if the class exists or not var_dump(new $name); // is the same as new Name } } class Name{} Test::speak('Nested\Name\Name');

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)
8.3.60.0100.01318.56
8.3.50.0090.00616.35
8.3.40.0090.01318.54
8.3.30.0100.00618.54
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0060.00326.16
8.2.180.0120.00325.92
8.2.170.0060.00918.79
8.2.160.0040.01122.96
8.2.150.0040.00425.66
8.2.140.0000.00924.66
8.2.130.0040.00726.16
8.2.120.0000.00826.35
8.2.110.0070.00319.38
8.2.100.0040.00817.59
8.2.90.0040.00417.50
8.2.80.0080.00018.66
8.2.70.0030.00617.50
8.2.60.0000.00917.55
8.2.50.0030.00618.05
8.2.40.0060.00317.78
8.2.30.0000.00918.00
8.2.20.0040.00417.92
8.2.10.0000.00719.04
8.2.00.0040.00419.00
8.1.280.0090.00625.92
8.1.270.0090.00023.91
8.1.260.0000.00828.09
8.1.250.0050.00328.09
8.1.240.0030.00619.07
8.1.230.0080.00417.57
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0060.00317.23
8.1.190.0050.00316.98
8.1.180.0030.00618.10
8.1.170.0050.00318.51
8.1.160.0000.00718.80
8.1.150.0000.00718.69
8.1.140.0000.00918.68
8.1.130.0000.00719.96
8.1.120.0000.00717.34
8.1.110.0000.00717.34
8.1.100.0090.00017.36
8.1.90.0060.00317.31
8.1.80.0040.00417.25
8.1.70.0030.00317.24
8.1.60.0080.00017.57
8.1.50.0030.00617.50
8.1.40.0000.01117.49
8.1.30.0040.00417.60
8.1.20.0050.00317.51
8.1.10.0040.00417.59
8.1.00.0040.00417.45
8.0.300.0040.00420.14
8.0.290.0040.00416.63
8.0.280.0030.00318.40
8.0.270.0000.00717.94
8.0.260.0070.00018.30
8.0.250.0000.00716.88
8.0.240.0050.00216.80
8.0.230.0040.00416.90
8.0.220.0000.00716.77
8.0.210.0030.00316.88
8.0.200.0050.00316.86
8.0.190.0050.00316.79
8.0.180.0000.00816.87
8.0.170.0040.00416.90
8.0.160.0000.00716.80
8.0.150.0030.00516.70
8.0.140.0030.00316.65
8.0.130.0030.00313.19
8.0.120.0020.00516.73
8.0.110.0050.00316.59
8.0.100.0040.00416.62
8.0.90.0000.00716.75
8.0.80.0130.00516.77
8.0.70.0040.00416.77
8.0.60.0070.00016.84
8.0.50.0000.00716.60
8.0.30.0110.00616.86
8.0.20.0120.00617.10
8.0.10.0110.00817.09
8.0.00.0080.01316.87
7.4.330.0050.00015.55
7.4.320.0030.00316.46
7.4.300.0030.00316.47
7.4.290.0000.00816.52
7.4.280.0000.00816.39
7.4.270.0040.00416.48
7.4.260.0030.00313.24
7.4.250.0040.00416.44
7.4.240.0040.00416.56
7.4.230.0030.00316.36
7.4.220.0020.00516.46
7.4.210.0080.00816.49
7.4.200.0030.00316.65
7.4.140.0100.00716.35
7.4.130.0140.00716.43
7.4.120.0090.01516.45
7.4.110.0130.01016.32
7.4.100.0150.00616.70
7.4.90.0090.01416.47
7.4.80.0140.00316.39
7.4.70.0140.00316.50
7.4.60.0120.00316.48
7.4.50.0070.01016.20
7.4.40.0070.01016.55
7.4.30.0110.00616.59
7.4.20.0090.00916.29
7.4.10.0070.01016.27
7.4.00.0110.00716.53
7.3.330.0040.00416.36
7.3.320.0030.00313.28
7.3.310.0040.00416.20
7.3.300.0030.00416.28
7.3.290.0080.00916.33
7.3.260.0040.01316.31
7.3.250.0090.00916.29
7.3.240.0180.00616.20
7.3.230.0100.00916.14
7.3.220.0120.00916.29
7.3.210.0030.01916.56
7.3.200.0130.00416.39
7.3.190.0070.01016.21
7.3.180.0120.00416.35
7.3.170.0120.00416.33
7.3.160.0120.00616.40
7.3.150.0030.01516.22
7.3.140.0070.01016.60
7.3.130.0060.01116.45
7.3.120.0060.01216.38
7.3.110.0070.01016.22
7.3.100.0070.01016.34
7.3.90.0040.01416.23
7.3.80.0110.00716.57
7.3.70.0090.00916.33
7.3.60.0080.00916.39
7.3.50.0100.00716.20
7.3.40.0060.01016.32
7.3.30.0150.00016.30
7.3.20.0470.00716.21
7.3.10.0090.00916.34
7.3.00.0150.00316.20

preferences:
68.69 ms | 400 KiB | 5 Q