3v4l.org

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

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)
8.3.60.0070.01318.56
8.3.50.0100.01021.03
8.3.40.0110.00418.71
8.3.30.0060.01218.80
8.3.20.0000.00720.25
8.3.10.0040.00423.52
8.3.00.0000.00722.51
8.2.180.0180.00418.61
8.2.170.0140.00422.96
8.2.160.0170.00322.14
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00417.50
8.2.110.0030.00619.22
8.2.100.0080.00417.76
8.2.90.0000.00818.03
8.2.80.0030.00618.09
8.2.70.0040.00417.63
8.2.60.0050.00317.50
8.2.50.0060.00317.50
8.2.40.0060.00317.62
8.2.30.0030.00517.89
8.2.20.0030.00617.64
8.2.10.0070.00017.98
8.2.00.0040.00417.98
8.1.280.0090.00625.92
8.1.270.0060.00320.33
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.55
8.1.230.0060.00622.68
8.1.220.0060.00317.74
8.1.210.0030.00618.77
8.1.200.0050.00317.23
8.1.190.0040.00417.23
8.1.180.0050.00318.10
8.1.170.0050.00317.62
8.1.160.0040.00418.96
8.1.150.0040.00418.69
8.1.140.0040.00417.25
8.1.130.0030.00317.51
8.1.120.0000.00717.37
8.1.110.0000.00717.24
8.1.100.0050.00317.20
8.1.90.0000.00717.31
8.1.80.0030.00317.17
8.1.70.0030.00317.31
8.1.60.0040.00417.35
8.1.50.0000.00817.36
8.1.40.0040.00417.45
8.1.30.0080.00017.59
8.1.20.0080.00017.51
8.1.10.0030.00617.55
8.1.00.0040.00417.45
8.0.300.0000.00719.91
8.0.290.0040.00416.75
8.0.280.0070.00018.58
8.0.270.0030.00317.09
8.0.260.0000.00617.19
8.0.250.0000.00716.90
8.0.240.0000.00717.01
8.0.230.0000.00816.93
8.0.220.0000.00716.95
8.0.210.0040.00416.94
8.0.200.0030.00316.94
8.0.190.0000.00816.88
8.0.180.0050.00216.80
8.0.170.0040.00416.85
8.0.160.0000.00716.77
8.0.150.0050.00216.88
8.0.140.0000.00716.86
8.0.130.0000.00713.35
8.0.120.0050.00316.86
8.0.110.0040.00416.90
8.0.100.0000.00716.77
8.0.90.0040.00417.01
8.0.80.0070.00716.89
8.0.70.0050.00316.95
8.0.60.0040.00416.96
8.0.50.0040.00416.79
8.0.30.0120.00617.01
8.0.20.0110.00817.40
8.0.10.0050.00216.78
8.0.00.0090.00916.72
7.4.330.0000.00515.08
7.4.320.0000.00716.51
7.4.300.0040.00416.54
7.4.290.0000.00616.51
7.4.280.0000.00716.55
7.4.270.0000.00616.54
7.4.260.0000.00716.54
7.4.250.0040.00416.48
7.4.240.0050.00216.50
7.4.230.0000.00716.34
7.4.220.0100.00716.53
7.4.210.0090.00616.49
7.4.200.0030.00316.57
7.4.160.0100.01016.53
7.4.150.0070.01017.40
7.4.140.0100.01117.86
7.4.130.0140.00416.43
7.4.120.0070.01116.46
7.4.110.0140.00316.43
7.4.100.0160.00716.67
7.4.90.0090.00916.22
7.4.80.0100.01019.39
7.4.70.0060.01916.51
7.4.60.0090.00716.49
7.4.50.0030.00516.43
7.4.40.0150.00316.36
7.4.30.0100.00716.39
7.4.00.0030.01214.98
7.3.330.0030.00313.28
7.3.320.0030.00513.24
7.3.310.0030.00316.19
7.3.300.0000.00616.13
7.3.290.0110.00516.26
7.3.280.0090.01016.27
7.3.270.0100.00717.40
7.3.260.0060.01216.41
7.3.250.0080.01116.46
7.3.240.0070.01016.50
7.3.230.0120.00616.52
7.3.210.0100.00616.46
7.3.200.0100.01019.39
7.3.190.0030.01316.49
7.3.180.0100.00616.52
7.3.170.0070.01716.33
7.3.160.0110.01116.71
7.3.10.0060.00316.45
7.3.00.0060.00616.16
7.2.330.0080.00816.40
7.2.320.0060.01016.57
7.2.310.0000.01716.45
7.2.300.0070.01416.57
7.2.290.0120.00616.22
7.2.130.0150.00616.79
7.2.120.0090.00416.84
7.2.110.0110.00016.82
7.2.100.0000.01116.58
7.2.90.0000.01016.64
7.2.80.0090.00316.61
7.2.70.0130.00316.79
7.2.60.0090.00516.56
7.2.50.0130.00716.66
7.2.40.0060.01216.76
7.2.30.0000.00916.89
7.2.20.0100.00616.71
7.2.10.0030.00616.59
7.2.00.0080.00917.93
7.1.250.0110.00415.63
7.1.200.0000.00715.55
7.1.100.0120.00617.63
7.1.70.0030.00617.00
7.1.60.0120.01220.03
7.1.50.0030.00916.63
7.1.00.0000.08022.44
7.0.200.0040.00416.73
7.0.60.0130.04720.05
7.0.50.0000.07017.88
7.0.40.0130.06720.11
7.0.30.0500.07020.12
7.0.20.0230.08320.07
7.0.10.0330.06320.10
7.0.00.0000.08020.12
5.6.280.0070.03321.12
5.6.210.0030.07720.52
5.6.200.0030.04718.18
5.6.190.0130.06720.46
5.6.180.0330.05020.59
5.6.170.0300.07020.57
5.6.160.0200.03020.54
5.6.150.0100.07318.29
5.6.140.0100.06718.18
5.6.130.0030.04718.29
5.6.120.0070.04721.03
5.6.110.0000.04321.11
5.6.100.0030.09021.13
5.6.90.0070.08720.96
5.6.80.0030.08720.43
5.6.70.4070.04320.40
5.5.350.0100.04320.50
5.5.340.0070.06718.07
5.5.330.0070.04720.57
5.5.320.0270.04020.31
5.5.310.0300.07720.36
5.5.300.0070.08717.95
5.5.290.0100.03717.98
5.5.280.0070.04020.90
5.5.270.0100.08320.76
5.5.260.0130.08320.88
5.5.250.0030.04020.71
5.5.240.0170.04020.26
5.4.450.0970.06019.59
5.4.440.0870.06319.70
5.4.430.0530.06719.45
5.4.420.1000.05719.59
5.4.410.0370.07019.43
5.4.400.0230.04319.26
5.4.390.0100.05318.84
5.4.380.0470.05719.30
5.4.370.0700.05019.15
5.4.360.0170.05019.03
5.4.350.0130.04719.28
5.4.340.0800.04719.06
5.4.320.0870.04719.15
5.4.310.0600.06719.37
5.4.300.0770.06319.28
5.4.290.0930.05318.84
5.4.280.0470.07719.06
5.4.270.0130.05319.15
5.4.260.0230.05019.28
5.4.250.0630.05019.30
5.4.240.0770.07018.86
5.4.230.1230.04719.22
5.4.220.1000.06719.14
5.4.210.0970.04719.11
5.4.200.0830.05717.09
5.4.190.0900.05319.32
5.4.180.0870.05319.10
5.4.170.0870.04718.96
5.4.160.0830.04719.00
5.4.150.0830.05719.11
5.4.140.0870.05016.35
5.4.130.0970.06316.42
5.4.120.0970.04716.54
5.4.110.0830.04316.59
5.4.100.0930.07716.37
5.4.90.0830.05716.43
5.4.80.0800.06716.46
5.4.70.1000.05716.32
5.4.60.0230.04016.54
5.4.50.0030.07016.34
5.4.40.0000.05016.33
5.4.30.0000.06716.42
5.4.20.0200.03716.52

preferences:
59.81 ms | 401 KiB | 5 Q