3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class T { static public $instanses; final private function __construct(){ } public static function getInstance() { if (!(static::$instanses instanceof static)) { static::$instanses = new static; } return static::$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)
8.3.60.0170.00318.37
8.3.50.0100.01021.27
8.3.40.0140.00418.84
8.3.30.0040.01118.88
8.3.20.0070.00020.20
8.3.10.0030.00623.69
8.3.00.0040.00422.34
8.2.180.0070.01418.41
8.2.170.0120.00322.96
8.2.160.0070.00720.39
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0090.00017.63
8.2.110.0040.00421.06
8.2.100.0090.00318.22
8.2.90.0030.00519.08
8.2.80.0000.00917.97
8.2.70.0040.00417.75
8.2.60.0000.00818.04
8.2.50.0030.00618.07
8.2.40.0080.00020.96
8.2.30.0030.00519.80
8.2.20.0030.00517.64
8.2.10.0040.00418.00
8.2.00.0080.00018.00
8.1.280.0140.00725.92
8.1.270.0060.00320.13
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00319.27
8.1.230.0110.00017.42
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0030.00617.23
8.1.190.0030.00517.22
8.1.180.0080.00018.10
8.1.170.0050.00518.58
8.1.160.0040.00422.07
8.1.150.0040.00418.90
8.1.140.0050.00317.45
8.1.130.0000.00717.71
8.1.120.0030.00517.48
8.1.110.0000.00817.38
8.1.100.0070.00017.43
8.1.90.0040.00417.45
8.1.80.0040.00417.48
8.1.70.0030.00517.46
8.1.60.0000.00917.45
8.1.50.0000.00817.43
8.1.40.0030.00617.42
8.1.30.0040.00417.55
8.1.20.0000.00717.68
8.1.10.0000.00717.57
8.1.00.0040.00417.43
8.0.300.0040.00418.77
8.0.290.0070.00016.88
8.0.280.0030.00318.44
8.0.270.0050.00317.17
8.0.260.0040.00417.39
8.0.250.0040.00416.95
8.0.240.0000.00817.00
8.0.230.0080.00016.89
8.0.220.0000.00817.01
8.0.210.0000.00916.85
8.0.200.0070.00017.06
8.0.190.0060.00317.05
8.0.180.0000.00716.95
8.0.170.0080.00016.95
8.0.160.0040.00417.07
8.0.150.0040.00416.88
8.0.140.0000.00716.95
8.0.130.0040.00413.35
8.0.120.0030.00616.96
8.0.110.0030.00516.98
8.0.100.0080.00016.96
8.0.90.0040.00416.84
8.0.80.0060.00917.00
8.0.70.0000.00716.87
8.0.60.0000.00717.00
8.0.50.0000.00717.07
8.0.30.0050.01217.04
8.0.20.0090.01417.40
8.0.10.0050.00217.15
8.0.00.0080.00816.79
7.4.330.0050.00015.08
7.4.320.0060.00016.44
7.4.300.0060.00316.50
7.4.290.0030.00316.43
7.4.280.0050.00216.50
7.4.270.0030.00316.63
7.4.260.0000.00716.49
7.4.250.0080.00016.43
7.4.240.0020.00516.52
7.4.230.0000.00716.41
7.4.220.0100.00716.54
7.4.210.0080.00816.55
7.4.200.0070.00016.32
7.4.160.0120.00416.30
7.4.150.0130.00517.40
7.4.140.0080.01217.86
7.4.130.0070.01016.46
7.4.120.0130.00816.60
7.4.110.0030.01516.45
7.4.100.0070.01716.47
7.4.90.0070.01516.55
7.4.80.0110.01119.39
7.4.70.0130.00616.49
7.4.60.0100.00716.48
7.4.50.0080.00016.41
7.4.40.0080.00916.59
7.4.30.0140.00416.34
7.4.00.0150.00314.86
7.3.330.0020.00513.28
7.3.320.0000.00713.35
7.3.310.0070.00016.36
7.3.300.0040.00416.39
7.3.290.0050.01316.38
7.3.280.0050.01016.40
7.3.270.0110.00617.40
7.3.260.0030.01416.64
7.3.250.0110.00816.51
7.3.240.0070.01016.47
7.3.230.0070.01116.41
7.3.210.0140.00316.43
7.3.200.0070.01019.39
7.3.190.0060.01216.28
7.3.180.0070.01016.35
7.3.170.0100.00716.58
7.3.160.0120.00916.61
7.3.10.0110.00416.69
7.3.00.0120.00016.53
7.2.330.0070.01016.82
7.2.320.0120.00916.60
7.2.310.0110.00716.76
7.2.300.0100.00716.77
7.2.290.0070.01116.77
7.2.130.0070.00716.89
7.2.120.0090.00616.88
7.2.110.0030.00716.85
7.2.100.0040.00416.86
7.2.90.0070.00716.99
7.2.80.0110.00316.70
7.2.70.0070.00717.02
7.2.60.0020.01016.72
7.2.50.0070.00716.50
7.2.40.0030.01116.75
7.2.30.0030.01016.87
7.2.20.0090.00316.56
7.2.10.0040.01116.69
7.2.00.0050.01018.38
7.1.250.0090.00615.63
7.1.200.0040.00815.62
7.1.100.0040.01217.87
7.1.70.0000.00817.13
7.1.60.0210.00420.03
7.1.50.0060.00916.92
7.1.00.0030.07322.33
7.0.200.0040.00416.85
7.0.60.0170.07319.91
7.0.50.0030.08317.86
7.0.40.0030.04320.05
7.0.30.0200.08320.30
7.0.20.0300.07720.09
7.0.10.0030.10020.30
7.0.00.0070.08320.16
5.6.280.0030.03020.87
5.6.210.0070.08320.55
5.6.200.0170.04318.29
5.6.190.0030.04320.64
5.6.180.0330.08020.60
5.6.170.0170.04320.48
5.6.160.0070.08320.56
5.6.150.0130.07018.15
5.6.140.0070.08018.15
5.6.130.0030.06318.27
5.6.120.0100.08021.13
5.6.110.0130.07721.00
5.6.100.0030.09021.02
5.6.90.0170.07320.93
5.6.80.0000.09020.41
5.6.70.4300.04320.40
5.5.350.0030.07020.42
5.5.340.0000.08717.99
5.5.330.0030.05320.40
5.5.320.0330.07320.32
5.5.310.0230.05720.41
5.5.300.0070.08018.04
5.5.290.0070.03717.92
5.5.280.0100.07320.86
5.5.270.0070.08020.77
5.5.260.0030.05020.81
5.5.250.0130.07020.57
5.5.240.0070.07320.16
5.4.450.0970.04019.61
5.4.440.0800.06319.16
5.4.430.0900.05319.44
5.4.420.0870.05019.46
5.4.410.0800.05719.08
5.4.400.0800.05319.26
5.4.390.0870.05018.84
5.4.380.0800.05719.15
5.4.370.0830.05019.15
5.4.360.0970.06319.25
5.4.350.0030.05719.26
5.4.340.0100.05319.25
5.4.320.0070.05719.28
5.4.310.0530.05019.30
5.4.300.0830.06319.12
5.4.290.0830.05318.84
5.4.280.0800.05719.15
5.4.270.0830.06019.14
5.4.260.0970.05719.28
5.4.250.0830.05019.00
5.4.240.0700.06019.37
5.4.230.0830.05318.97
5.4.220.0870.05019.36
5.4.210.0830.05018.82
5.4.200.0870.04317.05
5.4.190.0970.04718.98
5.4.180.0830.05319.02
5.4.170.0830.07019.12
5.4.160.1000.04318.87
5.4.150.0870.05319.18
5.4.140.0770.06316.51
5.4.130.0800.05316.32
5.4.120.0770.05316.73
5.4.110.0970.05716.38
5.4.100.0770.06016.30
5.4.90.0870.05016.71
5.4.80.0870.04716.41
5.4.70.0900.05016.37
5.4.60.0170.03716.26
5.4.50.0000.07716.22
5.4.40.0000.07316.51
5.4.30.0000.07316.38
5.4.20.0070.06316.23

preferences:
31.29 ms | 401 KiB | 5 Q