3v4l.org

run code in 300+ PHP versions simultaneously
<?php class ClassmapAutoloader { protected $classmap; public function __construct($classmap) { $this->classmap = array_change_key_case($classmap); spl_autoload_register('self::loadClass'); } public function addClassmap($classmap) { $this->classmap = array_merge($this->classmap, array_change_key_case($classmap)); } protected function loadClass($class_name) { $class_name = strtolower($class_name); if(isset($this->classmap[$class_name])) include $this->classmap[$class_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)
8.3.60.0120.00616.63
8.3.50.0120.00516.43
8.3.40.0070.00718.67
8.3.30.0040.01118.54
8.3.20.0050.00318.48
8.3.10.0080.00020.40
8.3.00.0050.00517.38
8.2.180.0060.00916.32
8.2.170.0140.00322.96
8.2.160.0060.00922.08
8.2.150.0090.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0070.00019.83
8.2.110.0000.00920.96
8.2.100.0040.00817.66
8.2.90.0040.00419.10
8.2.80.0000.00817.97
8.2.70.0040.00417.38
8.2.60.0030.00617.91
8.2.50.0040.00418.07
8.2.40.0040.00417.97
8.2.30.0040.00417.95
8.2.20.0000.00817.45
8.2.10.0000.00819.27
8.2.00.0040.00417.55
8.1.280.0060.00925.92
8.1.270.0060.00324.66
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0080.00022.48
8.1.230.0080.00320.84
8.1.220.0000.00818.77
8.1.210.0050.00318.77
8.1.200.0060.00317.25
8.1.190.0040.00417.05
8.1.180.0080.00018.10
8.1.170.0030.00518.84
8.1.160.0030.00518.64
8.1.150.0040.00418.39
8.1.140.0070.00017.34
8.1.130.0030.00317.75
8.1.120.0050.00317.32
8.1.110.0040.00417.30
8.1.100.0040.00417.29
8.1.90.0040.00317.21
8.1.80.0070.00017.32
8.1.70.0040.00417.16
8.1.60.0040.00417.44
8.1.50.0070.00017.39
8.1.40.0030.00617.35
8.1.30.0040.00417.46
8.1.20.0060.00317.35
8.1.10.0030.00517.41
8.1.00.0050.00317.31
8.0.300.0040.00419.96
8.0.290.0000.00716.63
8.0.280.0070.00018.31
8.0.270.0000.00717.13
8.0.260.0030.00318.31
8.0.250.0050.00216.82
8.0.240.0040.00816.87
8.0.230.0030.00316.82
8.0.220.0030.00316.74
8.0.210.0040.00416.67
8.0.200.0000.00616.80
8.0.190.0000.00716.83
8.0.180.0040.00416.66
8.0.170.0080.00016.80
8.0.160.0040.00416.72
8.0.150.0050.00316.66
8.0.140.0040.00816.64
8.0.130.0030.00313.16
8.0.120.0040.00516.60
8.0.110.0040.00416.63
8.0.100.0070.00016.80
8.0.90.0070.00016.78
8.0.80.0090.01016.70
8.0.70.0040.00416.80
8.0.60.0050.00316.80
8.0.50.0000.00816.86
8.0.30.0040.01416.82
8.0.20.0090.01316.82
8.0.10.0000.00716.87
8.0.00.0110.00716.55
7.4.330.0050.00012.76
7.4.320.0070.00016.36
7.4.300.0000.00616.32
7.4.290.0070.00016.28
7.4.280.0060.00316.27
7.4.270.0000.00716.36
7.4.260.0050.00013.14
7.4.250.0040.00416.29
7.4.240.0030.00316.46
7.4.230.0030.00316.45
7.4.220.0080.00816.48
7.4.210.0080.00916.54
7.4.200.0070.00016.21
7.4.190.0040.00416.58
7.4.160.0070.00716.36
7.4.150.0090.00916.37
7.4.140.0080.01016.36
7.4.130.0090.01116.41
7.4.120.0110.00616.25
7.4.110.0100.00716.38
7.4.100.0160.00716.27
7.4.90.0130.00316.55
7.4.80.0100.00616.29
7.4.70.0090.00916.34
7.4.60.0090.00616.25
7.4.50.0040.00416.13
7.4.40.0120.00016.16
7.4.30.0160.00316.38
7.4.00.0030.01414.80
7.3.330.0060.00013.18
7.3.320.0000.00613.16
7.3.310.0000.00616.07
7.3.300.0070.00016.06
7.3.290.0110.00316.18
7.3.280.0080.00816.18
7.3.270.0170.00016.07
7.3.260.0150.00216.17
7.3.250.0120.00816.26
7.3.240.0040.01216.32
7.3.230.0130.00316.14
7.3.210.0090.00916.11
7.3.200.0130.00619.39
7.3.190.0100.01416.44
7.3.180.0120.00316.05
7.3.170.0140.00316.15
7.3.160.0180.00316.21
7.3.120.0070.01114.64
7.3.10.0140.00716.46
7.3.00.0110.00716.65
7.2.330.0140.00716.50
7.2.320.0070.01016.29
7.2.310.0120.00616.55
7.2.300.0130.00316.49
7.2.290.0100.01016.40
7.2.130.0100.00316.56
7.2.120.0120.00316.39
7.2.110.0120.00416.33
7.2.100.0040.00716.47
7.2.90.0040.01216.62
7.2.80.0130.00316.47
7.2.70.0070.00716.86
7.2.60.0040.00716.26
7.2.50.0030.01016.31
7.2.40.0060.00916.88
7.2.30.0060.01016.77
7.2.20.0120.00316.54
7.2.10.0040.00716.41
7.2.00.0080.00717.79
7.1.250.0050.01015.36
7.1.100.0000.01118.14
7.1.70.0000.00917.09
7.1.60.0100.01419.40
7.1.50.0060.01516.50
7.1.00.0030.06322.45
7.0.200.0030.00616.54
7.0.140.0130.06322.09
7.0.120.0030.05722.01
7.0.60.0070.08319.92
7.0.50.0030.05317.85
7.0.40.0030.04320.05
7.0.30.0430.06720.25
7.0.20.0300.06320.22
7.0.10.0130.04320.27
7.0.00.0100.03720.08
5.6.280.0130.06321.13
5.6.210.0100.08020.67
5.6.200.0100.04018.19
5.6.190.0130.07020.41
5.6.180.0270.08720.48
5.6.170.0130.04720.55
5.6.160.0070.05320.54
5.6.150.0070.07318.18
5.6.140.0170.07318.14
5.6.130.0130.07318.17
5.6.120.0130.07721.14
5.6.110.0230.07020.90
5.6.100.0030.04721.14
5.6.90.0000.08020.97
5.6.80.0170.07320.48
5.6.70.4170.04020.38
5.5.350.0370.06320.39
5.5.340.0100.07717.96
5.5.330.0130.07320.40
5.5.320.0130.04020.43
5.5.310.0300.07320.27
5.5.300.0100.03717.97
5.5.290.0000.08317.96
5.5.280.0030.04020.90
5.5.270.0130.05720.79
5.5.260.0030.07720.93
5.5.250.0070.05720.79
5.5.240.0070.03720.16
5.4.450.0030.04019.50
5.4.440.0100.03319.30
5.4.430.0030.03719.32
5.4.420.0070.03319.17
5.4.410.0000.04019.44
5.4.400.0070.03318.87
5.4.390.0030.04319.16
5.4.380.0270.05018.94
5.4.370.0070.03719.25
5.4.360.0030.06019.14
5.4.350.0030.07718.88
5.4.340.0030.07718.98
5.4.320.0070.04718.94
5.4.310.0030.04019.12
5.4.300.0070.07319.09
5.4.290.0130.07018.98
5.4.280.0070.07719.24
5.4.270.0030.04019.24
5.4.260.0030.04719.09
5.4.250.0000.07319.20
5.4.240.0000.05318.87
5.4.230.0030.06319.24
5.4.220.0070.07319.16
5.4.210.0000.08719.11
5.4.200.0070.07019.18
5.4.190.0170.06718.84
5.4.180.0070.06318.86
5.4.170.0000.04719.00
5.4.160.0000.04019.14
5.4.150.0030.04719.14
5.4.140.0030.04016.55
5.4.130.0030.06716.34
5.4.120.0170.05716.43
5.4.110.0170.03716.45
5.4.100.0030.07316.34
5.4.90.0070.05716.53
5.4.80.0000.08316.29
5.4.70.0170.06316.28
5.4.60.0030.05316.29
5.4.50.0170.05016.46
5.4.40.0000.04016.38
5.4.30.0030.04716.64
5.4.20.0070.07016.51
5.4.10.0130.07016.39
5.4.00.0100.07015.95
5.3.290.0030.04014.68
5.3.280.0100.04314.63
5.3.270.0070.07314.66
5.3.260.0070.04014.67
5.3.250.0030.07714.77
5.3.240.0000.04014.61
5.3.230.0100.05314.75
5.3.220.0100.04014.73
5.3.210.0100.03714.63
5.3.200.0100.03314.72
5.3.190.0070.04714.63
5.3.180.0070.07014.62
5.3.170.0100.05314.57
5.3.160.0070.04314.62
5.3.150.0070.05014.61
5.3.140.0130.03314.72
5.3.130.0070.07714.61
5.3.120.0130.05714.55
5.3.110.0070.07314.71
5.3.100.0030.07314.04
5.3.90.0130.07314.20
5.3.80.0030.08014.02
5.3.70.0030.07713.99
5.3.60.0070.05013.93
5.3.50.0030.04013.87
5.3.40.0070.04013.98
5.3.30.0100.06313.96
5.3.20.0070.07013.62
5.3.10.0100.06713.66
5.3.00.0070.04313.66
5.2.170.0030.06311.21
5.2.160.0000.03711.22
5.2.150.0030.06311.09
5.2.140.0070.05711.20
5.2.130.0030.04011.03
5.2.120.0030.03311.03
5.2.110.0100.03311.07
5.2.100.0070.04011.26
5.2.90.0070.06011.16
5.2.80.0100.03311.16
5.2.70.0030.06011.16
5.2.60.0000.06711.13
5.2.50.0070.06311.05
5.2.40.0100.06010.92
5.2.30.0070.05311.13
5.2.20.0030.06011.00
5.2.10.0100.05310.75
5.2.00.0070.06010.80
5.1.60.0030.0579.95
5.1.50.0030.03710.14
5.1.40.0070.04310.02
5.1.30.0030.03310.34
5.1.20.0070.05310.50
5.1.10.0000.04310.07
5.1.00.0070.05010.17
5.0.50.0070.0438.53
5.0.40.0030.0478.32
5.0.30.0030.0678.29
5.0.20.0000.0238.27
5.0.10.0070.0308.27
5.0.00.0070.0638.27
4.4.90.0030.0338.27
4.4.80.0000.0408.27
4.4.70.0030.0378.27
4.4.60.0070.0208.27
4.4.50.0000.0278.27
4.4.40.0000.0438.27
4.4.30.0070.0278.27
4.4.20.0000.0338.27
4.4.10.0000.0408.27
4.4.00.0030.0408.27
4.3.110.0030.0238.27
4.3.100.0030.0178.27
4.3.90.0070.0178.27
4.3.80.0000.0538.27
4.3.70.0030.0238.27
4.3.60.0000.0238.27
4.3.50.0000.0338.27
4.3.40.0000.0578.27
4.3.30.0070.0238.27
4.3.20.0000.0408.27
4.3.10.0000.0308.27
4.3.00.0030.0338.27

preferences:
43.4 ms | 401 KiB | 5 Q