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 { static public $instanses; } class B extends A { static public $instanses; } $t = A::getInstance(); var_dump($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)
8.3.60.0120.00616.86
8.3.50.0100.00716.28
8.3.40.0040.01119.14
8.3.30.0080.01118.92
8.3.20.0030.00620.34
8.3.10.0040.00423.66
8.3.00.0060.00318.05
8.2.180.0110.00725.92
8.2.170.0140.00719.04
8.2.160.0110.00322.96
8.2.150.0060.00325.66
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0060.00317.75
8.2.110.0070.00320.57
8.2.100.0080.00417.75
8.2.90.0000.00719.03
8.2.80.0040.00417.97
8.2.70.0050.00317.75
8.2.60.0040.00417.87
8.2.50.0080.00018.07
8.2.40.0040.00419.37
8.2.30.0040.00418.13
8.2.20.0080.00017.82
8.2.10.0030.00617.94
8.2.00.0050.00218.07
8.1.280.0150.00325.92
8.1.270.0060.00320.38
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0030.00719.01
8.1.230.0120.00017.42
8.1.220.0060.00317.74
8.1.210.0000.00818.77
8.1.200.0040.00417.35
8.1.190.0000.00817.13
8.1.180.0080.00018.10
8.1.170.0000.00818.63
8.1.160.0000.00722.02
8.1.150.0040.00418.91
8.1.140.0080.00017.42
8.1.130.0000.00717.71
8.1.120.0070.00017.48
8.1.110.0040.00417.45
8.1.100.0050.00317.46
8.1.90.0000.00717.35
8.1.80.0040.00417.38
8.1.70.0030.00317.39
8.1.60.0040.00417.50
8.1.50.0040.00417.43
8.1.40.0040.00417.59
8.1.30.0030.00517.66
8.1.20.0080.00017.59
8.1.10.0000.00717.65
8.1.00.0050.00217.55
8.0.300.0030.00618.77
8.0.290.0040.00416.75
8.0.280.0040.00418.36
8.0.270.0050.00217.27
8.0.260.0030.00317.13
8.0.250.0050.00217.01
8.0.240.0080.00316.92
8.0.230.0030.00717.09
8.0.220.0030.00316.98
8.0.210.0030.00316.95
8.0.200.0040.00417.04
8.0.190.0050.00217.00
8.0.180.0050.00216.89
8.0.170.0000.00816.98
8.0.160.0070.00016.97
8.0.150.0030.00616.87
8.0.140.0040.00416.56
8.0.130.0000.00613.43
8.0.120.0040.00416.84
8.0.110.0050.00316.96
8.0.100.0050.00216.83
8.0.90.0040.00416.83
8.0.80.0030.01317.02
8.0.70.0070.00016.74
8.0.60.0000.00716.76
8.0.50.0030.00516.76
8.0.30.0100.00717.20
8.0.20.0160.00717.40
8.0.10.0000.00816.99
8.0.00.0070.01016.88
7.4.330.0030.00515.08
7.4.320.0060.00016.61
7.4.300.0000.00716.42
7.4.290.0030.00916.52
7.4.280.0040.00416.48
7.4.270.0070.00016.57
7.4.260.0000.00716.51
7.4.250.0000.00716.43
7.4.240.0030.00516.62
7.4.230.0030.00316.63
7.4.220.0070.01416.60
7.4.210.0000.01516.56
7.4.200.0000.00716.62
7.4.160.0090.00616.51
7.4.150.0070.01117.40
7.4.140.0110.01117.86
7.4.130.0060.01216.59
7.4.120.0080.01116.67
7.4.110.0030.01516.47
7.4.100.0100.01316.52
7.4.90.0070.01016.50
7.4.80.0090.00919.39
7.4.70.0140.00716.38
7.4.60.0110.00616.58
7.4.50.0040.00416.57
7.4.40.0140.00316.36
7.4.30.0070.01016.49
7.4.00.0030.01214.97
7.3.330.0050.00013.33
7.3.320.0000.00513.20
7.3.310.0050.00316.24
7.3.300.0050.00216.20
7.3.290.0060.00916.36
7.3.280.0110.00716.39
7.3.270.0130.00617.40
7.3.260.0140.00316.42
7.3.250.0090.01016.40
7.3.240.0090.00916.39
7.3.230.0110.00716.39
7.3.210.0160.00316.50
7.3.200.0130.01016.48
7.3.190.0070.01016.50
7.3.180.0090.00616.50
7.3.170.0030.01316.51
7.3.160.0030.01316.44
7.3.10.0070.00316.49
7.3.00.0040.00916.56
7.2.330.0130.00616.74
7.2.320.0130.01016.79
7.2.310.0120.00616.45
7.2.300.0150.00616.72
7.2.290.0060.01216.46
7.2.130.0000.01516.61
7.2.120.0040.00816.66
7.2.110.0000.01417.10
7.2.100.0060.00716.89
7.2.90.0030.01016.72
7.2.80.0030.01416.61
7.2.70.0080.00316.94
7.2.60.0110.00316.73
7.2.50.0070.00716.63
7.2.40.0000.01016.89
7.2.30.0030.01016.73
7.2.20.0030.01016.68
7.2.10.0070.00716.79
7.2.00.0070.00718.18
7.1.250.0000.01015.91
7.1.200.0040.00815.77
7.1.100.0050.00518.25
7.1.70.0050.00217.13
7.1.60.0130.01019.13
7.1.50.0030.01717.05
7.1.00.0030.08022.36
7.0.200.0230.00314.80
7.0.100.0200.07719.83
7.0.90.0030.06019.76
7.0.80.0130.08019.83
7.0.70.0030.08319.92
7.0.60.0100.05020.00
7.0.50.0070.07720.24
7.0.40.0100.06320.10
7.0.30.0170.07319.96
7.0.20.0070.08020.08
7.0.10.0200.05020.14
7.0.00.0130.08320.02
5.6.280.0000.03321.09
5.6.250.0200.03320.56
5.6.240.0170.08720.63
5.6.230.0130.05720.46
5.6.220.0100.07720.61
5.6.210.0070.07320.64
5.6.200.0100.05021.05
5.6.190.0100.08320.96
5.6.180.0170.03721.09
5.6.170.0100.08021.11
5.6.160.0200.06020.94
5.6.150.0030.08321.05
5.6.140.0070.06721.02
5.6.130.0030.08721.02
5.6.120.0130.07021.18
5.6.110.0070.07721.13
5.6.100.0100.07721.09
5.6.90.0030.08021.02
5.6.80.0100.07720.34
5.6.70.0170.07020.46
5.6.60.0000.08720.54
5.6.50.0030.08320.41
5.6.40.0070.08320.43
5.6.30.0130.07320.38
5.6.20.0170.04320.35
5.6.10.0070.07720.44
5.6.00.0100.06720.38
5.5.380.0170.07020.28
5.5.370.0100.07720.47
5.5.360.0030.07720.31
5.5.350.0100.06720.41
5.5.340.0130.07720.77
5.5.330.0070.08020.81
5.5.320.0230.06720.88
5.5.310.0170.07020.90
5.5.300.0100.08320.90
5.5.290.0070.07320.93
5.5.280.0070.08020.91
5.5.270.0070.08020.75
5.5.260.0130.06020.88
5.5.250.0100.07720.61
5.5.240.0100.04720.11
5.5.230.0100.05020.24
5.5.220.0130.06720.13
5.5.210.0000.07720.27
5.5.200.0030.05020.09
5.5.190.0070.08320.09
5.5.180.0070.06720.24
5.5.160.0030.08020.19
5.5.150.0070.08320.26
5.5.140.0070.07020.04
5.5.130.0070.08020.21
5.5.120.0130.06720.14
5.5.110.0130.07320.17
5.5.100.0170.07020.11
5.5.90.0100.07720.18
5.5.80.0070.04319.92
5.5.70.0170.05020.15
5.5.60.0100.07720.16
5.5.50.0200.06320.04
5.5.40.0070.08019.96
5.5.30.0130.06320.15
5.5.20.0070.04720.16
5.5.10.0100.06720.03
5.5.00.0070.07020.07
5.4.450.0030.06019.56
5.4.440.0000.07719.57
5.4.430.0100.07019.35
5.4.420.0000.08719.36
5.4.410.0170.07019.42
5.4.400.0200.05318.91
5.4.390.0070.07719.09
5.4.380.0000.08319.14
5.4.370.0070.08019.18
5.4.360.0130.07719.21
5.4.350.0070.08019.05
5.4.340.0070.07019.21
5.4.320.0100.07319.13
5.4.310.0030.06018.88
5.4.300.0100.08018.90
5.4.290.0070.07319.09
5.4.280.0100.04319.21
5.4.270.0070.03719.19
5.4.260.0030.08019.09
5.4.250.0170.06718.88
5.4.240.0070.07719.22
5.4.230.0100.07019.21
5.4.220.0000.05019.15
5.4.210.0100.07019.15
5.4.200.0130.07019.12
5.4.190.0070.07719.04
5.4.180.0000.04718.93
5.4.170.0100.07019.22
5.4.160.0170.06719.02
5.4.150.0130.07319.13
5.4.140.0100.07016.38
5.4.130.0130.05716.41
5.4.120.0070.07016.45
5.4.110.0130.04016.55
5.4.100.0000.06016.54
5.4.90.0100.05716.45
5.4.80.0030.06016.40
5.4.70.0100.05016.40
5.4.60.0100.06716.46
5.4.50.0100.06716.53
5.4.40.0030.07316.35
5.4.30.0070.07716.43
5.4.20.0000.06716.55
5.4.10.0130.03316.32
5.4.00.0070.03715.79

preferences:
57.57 ms | 400 KiB | 5 Q