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)
8.3.60.0120.00618.31
8.3.50.0120.00721.21
8.3.40.0070.00718.96
8.3.30.0070.00718.71
8.3.20.0030.00520.34
8.3.10.0040.00423.52
8.3.00.0080.00022.40
8.2.180.0110.01416.61
8.2.170.0090.00922.96
8.2.160.0080.00520.38
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0040.00417.75
8.2.110.0100.00021.00
8.2.100.0090.00317.59
8.2.90.0040.00419.27
8.2.80.0030.00517.97
8.2.70.0080.00017.63
8.2.60.0040.00417.79
8.2.50.0050.00318.10
8.2.40.0050.00321.05
8.2.30.0040.00419.69
8.2.20.0040.00417.80
8.2.10.0050.00217.93
8.2.00.0070.00018.01
8.1.280.0100.01025.92
8.1.270.0030.00520.30
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.84
8.1.230.0040.00717.83
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0030.00817.35
8.1.190.0080.00017.35
8.1.180.0070.00018.10
8.1.170.0040.00418.46
8.1.160.0000.00721.93
8.1.150.0050.00218.84
8.1.140.0060.00317.31
8.1.130.0030.00317.67
8.1.120.0070.00017.38
8.1.110.0000.00917.41
8.1.100.0030.00317.32
8.1.90.0000.00717.27
8.1.80.0070.00017.29
8.1.70.0030.00317.39
8.1.60.0020.00517.63
8.1.50.0030.00517.57
8.1.40.0060.00317.55
8.1.30.0000.00817.70
8.1.20.0040.00417.70
8.1.10.0030.00517.55
8.1.00.0030.00617.54
8.0.300.0050.00518.77
8.0.290.0050.00216.75
8.0.280.0000.00818.45
8.0.270.0040.00417.25
8.0.260.0000.00617.25
8.0.250.0000.00816.98
8.0.240.0040.00416.87
8.0.230.0070.00016.92
8.0.220.0030.00316.88
8.0.210.0050.00316.77
8.0.200.0000.00717.01
8.0.190.0060.00316.96
8.0.180.0070.00016.79
8.0.170.0030.00516.87
8.0.160.0040.00416.88
8.0.150.0070.00016.84
8.0.140.0040.00716.88
8.0.130.0090.00013.27
8.0.120.0080.00016.73
8.0.110.0050.00316.83
8.0.100.0020.00516.69
8.0.90.0050.00216.93
8.0.80.0110.00417.00
8.0.70.0040.00416.72
8.0.60.0040.00416.77
8.0.50.0070.00016.75
8.0.30.0090.00917.24
8.0.20.0090.01517.40
8.0.10.0040.00417.09
8.0.00.0090.00816.82
7.4.330.0050.00015.08
7.4.320.0030.00316.47
7.4.300.0000.00716.66
7.4.290.0030.00316.39
7.4.280.0000.00816.60
7.4.270.0070.00016.63
7.4.260.0000.00716.50
7.4.250.0020.00516.47
7.4.240.0030.00316.59
7.4.230.0040.00416.36
7.4.220.0170.00016.46
7.4.210.0070.00716.64
7.4.200.0040.00416.41
7.4.160.0040.01116.42
7.4.150.0300.02417.40
7.4.140.0090.01017.86
7.4.130.0140.00616.65
7.4.120.0090.00816.64
7.4.110.0080.01216.61
7.4.100.0130.01116.35
7.4.90.0060.01216.47
7.4.80.0140.01119.39
7.4.70.0030.01416.67
7.4.60.0070.01016.43
7.4.50.0050.00016.41
7.4.40.0090.01216.32
7.4.30.0090.01416.39
7.4.00.0060.00915.07
7.3.330.0000.00713.24
7.3.320.0000.00513.36
7.3.310.0040.00416.37
7.3.300.0000.00716.39
7.3.290.0080.00716.43
7.3.280.0050.01016.33
7.3.270.0160.00617.40
7.3.260.0110.00816.42
7.3.250.0060.01416.36
7.3.240.0040.01216.67
7.3.230.0000.01716.39
7.3.210.0030.01316.50
7.3.200.0110.01119.39
7.3.190.0090.00616.63
7.3.180.0070.01016.48
7.3.170.0090.00916.37
7.3.160.0180.00016.61
7.2.330.0120.00916.71
7.2.320.0120.00916.75
7.2.310.0000.01716.68
7.2.300.0090.00916.54
7.2.290.0130.00416.76
7.2.60.0000.01717.03
7.2.50.0000.01416.73
7.2.00.0060.01019.13
7.1.200.0060.00915.78
7.1.100.0090.00618.29
7.1.70.0040.00417.13
7.1.60.0130.01020.03
7.1.50.0080.00416.94
7.1.00.0000.08022.31
7.0.200.0050.00316.80
7.0.60.0130.07719.85
7.0.50.0100.03317.82
7.0.40.0100.04320.12
7.0.30.0330.04720.25
7.0.20.0230.04320.07
7.0.10.0100.09020.06
7.0.00.0130.05020.08
5.6.280.0100.04320.87
5.6.210.0130.08020.57
5.6.200.0100.08318.25
5.6.190.0070.04320.55
5.6.180.0300.07320.64
5.6.170.0270.07720.47
5.6.160.0070.09020.50
5.6.150.0030.04318.21
5.6.140.0100.04318.23
5.6.130.0170.06318.18
5.6.120.0030.05321.05
5.6.110.0100.08321.02
5.6.100.0100.08321.09
5.6.90.0070.07321.13
5.6.80.0030.07720.38
5.6.70.4530.03320.51
5.5.350.0300.07020.54
5.5.340.0100.07017.98
5.5.330.0100.07720.29
5.5.320.0200.04720.34
5.5.310.0530.05320.51
5.5.300.0070.04018.01
5.5.290.0070.05318.00
5.5.280.0200.07020.97
5.5.270.0030.08720.87
5.5.260.0170.07720.97
5.5.250.0070.04020.70
5.5.240.4230.03320.13
5.4.450.0730.06019.61
5.4.440.0730.06319.70
5.4.430.0830.05019.16
5.4.420.0900.05019.60
5.4.410.0870.05319.48
5.4.400.0830.05019.29
5.4.390.0930.05719.26
5.4.380.0900.04719.13
5.4.370.0770.05719.25
5.4.360.0830.06019.30
5.4.350.0900.05019.05
5.4.340.0800.06019.00
5.4.320.0830.06018.84
5.4.310.0700.05719.26
5.4.300.1000.03719.28
5.4.290.0870.05018.86
5.4.280.1000.04019.28
5.4.270.1000.04319.38
5.4.260.0900.04718.97
5.4.250.0800.04319.24
5.4.240.0700.05319.29
5.4.230.0830.06019.29
5.4.220.1000.04319.13
5.4.210.1000.03718.97
5.4.200.0770.05317.06
5.4.190.1000.03718.82
5.4.180.0770.05719.13
5.4.170.1070.03319.29
5.4.160.0830.05318.92
5.4.150.0930.04718.96
5.4.140.0800.04316.35
5.4.130.0830.04716.51
5.4.120.0700.05016.57
5.4.110.0770.05316.51
5.4.100.0900.04716.50
5.4.90.0800.05016.54
5.4.80.0700.05016.42
5.4.70.0770.04316.35
5.4.60.0030.06716.38
5.4.50.0030.05016.34
5.4.40.0300.06716.42
5.4.30.0230.03716.34
5.4.20.0300.05016.53

preferences:
53.03 ms | 401 KiB | 5 Q