3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class T { static public $instanses; final private function __construct(){ } public static function getInstance() { var_dump(static::$instanses); if (!(static::$instanses instanceof static)) { static::$instanses = new static; } var_dump(static::$instanses); return static::$instanses; } } class A extends T { } class B extends A { } $t = A::getInstance(); var_dump($t); $t1 = B::getInstance(); var_dump($t1); new B(); ?>

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)
8.3.60.0170.00318.43
8.3.50.0120.00521.15
8.3.40.0110.00718.92
8.3.30.0000.01419.02
8.3.20.0000.00720.16
8.3.10.0000.00823.43
8.3.00.0000.00822.44
8.2.180.0180.00318.54
8.2.170.0030.01022.96
8.2.160.0130.00020.25
8.2.150.0060.00324.18
8.2.140.0060.00324.66
8.2.130.0080.00026.16
8.2.120.0030.00617.75
8.2.110.0090.00022.25
8.2.100.0040.00817.75
8.2.90.0040.00419.28
8.2.80.0040.00417.97
8.2.70.0030.00617.75
8.2.60.0050.00318.03
8.2.50.0040.00418.07
8.2.40.0080.00021.11
8.2.30.0000.00819.88
8.2.20.0000.00817.63
8.2.10.0000.00718.12
8.2.00.0030.00618.16
8.1.280.0100.01025.92
8.1.270.0050.00320.24
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0060.00324.02
8.1.230.0060.00617.42
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0030.00617.25
8.1.190.0050.00317.13
8.1.180.0050.00318.10
8.1.170.0080.00018.62
8.1.160.0070.00022.02
8.1.150.0070.00018.95
8.1.140.0050.00317.38
8.1.130.0030.00317.61
8.1.120.0030.00517.51
8.1.110.0080.00017.43
8.1.100.0000.00717.34
8.1.90.0040.00417.48
8.1.80.0040.00417.42
8.1.70.0040.00417.44
8.1.60.0000.00917.63
8.1.50.0000.00817.53
8.1.40.0000.00917.51
8.1.30.0050.00317.64
8.1.20.0040.00417.70
8.1.10.0030.00617.47
8.1.00.0050.00317.48
8.0.300.0020.00518.77
8.0.290.0070.00016.75
8.0.280.0030.00318.36
8.0.270.0070.00017.14
8.0.260.0000.00717.27
8.0.250.0000.00816.94
8.0.240.0000.00617.05
8.0.230.0000.00716.99
8.0.220.0000.00716.84
8.0.210.0030.00617.00
8.0.200.0000.00616.89
8.0.190.0000.00917.03
8.0.180.0000.00716.99
8.0.170.0000.00816.96
8.0.160.0080.00016.97
8.0.150.0030.00416.92
8.0.140.0000.00716.94
8.0.130.0030.00513.38
8.0.120.0000.00816.94
8.0.110.0050.00316.88
8.0.100.0000.00716.93
8.0.90.0040.00417.00
8.0.80.0060.00916.96
8.0.70.0000.00716.95
8.0.60.0040.00416.88
8.0.50.0070.00017.03
8.0.30.0080.01117.03
8.0.20.0100.01317.40
8.0.10.0020.00517.04
8.0.00.0070.01016.74
7.4.330.0030.00315.13
7.4.320.0000.00716.52
7.4.300.0040.00416.61
7.4.290.0030.00316.49
7.4.280.0000.00716.58
7.4.270.0000.00716.53
7.4.260.0030.00316.51
7.4.250.0040.00416.57
7.4.240.0030.00316.49
7.4.230.0030.00316.41
7.4.220.0070.01116.68
7.4.210.0100.01016.63
7.4.200.0070.00016.54
7.4.160.0060.01016.55
7.4.150.0120.01417.40
7.4.140.0060.01317.86
7.4.130.0120.00816.64
7.4.120.0090.01016.53
7.4.110.0090.01316.63
7.4.100.0110.01116.61
7.4.90.0120.00616.59
7.4.80.0120.00519.39
7.4.70.0030.01616.80
7.4.60.0100.00716.58
7.4.50.0030.00616.37
7.4.40.0160.00316.57
7.4.30.0140.00416.40
7.4.00.0060.00915.11
7.3.330.0000.00713.21
7.3.320.0030.00313.37
7.3.310.0030.00316.41
7.3.300.0030.00316.37
7.3.290.0050.01116.35
7.3.280.0080.01216.38
7.3.270.0070.01017.40
7.3.260.0130.00316.39
7.3.250.0080.00916.43
7.3.240.0060.01116.46
7.3.230.0160.00616.42
7.3.210.0060.01216.50
7.3.200.0030.01519.39
7.3.190.0090.00816.40
7.3.180.0040.01216.32
7.3.170.0100.01316.43
7.3.160.0060.01616.51
7.2.330.0150.00216.71
7.2.320.0140.00516.54
7.2.310.0110.00616.76
7.2.300.0070.01016.42
7.2.290.0080.00916.37
7.2.60.0210.00317.07
7.1.200.0060.00615.49
7.1.70.0030.00316.95
7.1.60.0030.00917.13
7.1.50.0200.01734.91
7.1.00.0000.08022.43
7.0.200.0080.00816.52
7.0.60.0200.07019.93
7.0.50.0100.05717.72
7.0.40.0130.08020.13
7.0.30.0300.07320.15
7.0.20.0270.06720.12
7.0.10.0130.06320.09
7.0.00.0100.05320.31
5.6.280.0070.06321.09
5.6.210.0100.08320.71
5.6.200.0070.08318.19
5.6.190.0070.08320.63
5.6.180.0130.05020.46
5.6.170.0330.07720.48
5.6.160.0100.07720.47
5.6.150.0100.03318.19
5.6.140.0100.07718.15
5.6.130.0030.09018.11
5.6.120.0170.05721.13
5.6.110.0030.04321.03
5.6.100.0030.06321.09
5.6.90.0000.04320.98
5.6.80.0100.08020.29
5.6.70.4070.04720.38
5.5.350.0230.08020.50
5.5.340.0130.07717.98
5.5.330.0070.07720.42
5.5.320.0230.04720.51
5.5.310.0300.03720.23
5.5.300.0030.03717.98
5.5.290.0100.07718.08
5.5.280.0030.04020.86
5.5.270.0030.08320.68
5.5.260.0070.08720.82
5.5.250.0200.08020.69
5.5.240.3970.04320.27
5.4.450.1330.06019.47
5.4.440.0930.05719.70
5.4.430.0870.05019.38
5.4.420.1600.05319.38
5.4.410.0900.04319.17
5.4.400.0870.07019.26
5.4.390.1330.06019.25
5.4.380.0800.05019.29
5.4.370.0970.04319.01
5.4.360.0900.05719.37
5.4.350.1430.05319.28
5.4.340.0830.04719.30
5.4.320.0730.06319.26
5.4.310.0800.05719.06
5.4.300.0700.05719.28
5.4.290.0600.05719.12
5.4.280.0770.04719.37
5.4.270.0830.04718.84
5.4.260.0970.05019.14
5.4.250.0770.04719.05
5.4.240.0670.05019.13
5.4.230.0800.06018.86
5.4.220.0800.05019.12
5.4.210.0770.04719.23
5.4.200.0800.05017.06
5.4.190.0700.05719.04
5.4.180.0900.04319.12
5.4.170.0900.04018.96
5.4.160.0730.07018.82
5.4.150.0870.08019.06
5.4.140.0870.04316.51
5.4.130.0700.05716.55
5.4.120.0800.05016.61
5.4.110.0770.05316.55
5.4.100.1070.03716.73
5.4.90.0970.05316.38
5.4.80.0900.05316.38
5.4.70.0900.05316.54
5.4.60.0030.05016.55
5.4.50.0030.03716.52
5.4.40.0300.06316.23
5.4.30.0330.05316.34
5.4.20.0330.05016.30

preferences:
51.07 ms | 401 KiB | 5 Q