3v4l.org

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

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)
8.3.60.0090.00918.55
8.3.50.0090.01121.19
8.3.40.0040.01118.84
8.3.30.0100.00318.53
8.3.20.0050.00220.33
8.3.10.0050.00223.48
8.3.00.0080.00022.58
8.2.180.0160.00616.50
8.2.170.0110.00422.96
8.2.160.0150.00020.52
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0060.00317.63
8.2.110.0050.00522.12
8.2.100.0070.00417.63
8.2.90.0050.00319.26
8.2.80.0080.00017.97
8.2.70.0060.00317.50
8.2.60.0040.00417.91
8.2.50.0050.00318.07
8.2.40.0000.00821.03
8.2.30.0050.00319.72
8.2.20.0000.00917.61
8.2.10.0080.00017.94
8.2.00.0040.00418.04
8.1.280.0140.00325.92
8.1.270.0030.00520.38
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0060.00323.77
8.1.230.0080.00417.42
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0030.00617.35
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0000.00818.59
8.1.160.0040.00421.95
8.1.150.0040.00418.77
8.1.140.0040.00417.52
8.1.130.0000.00717.71
8.1.120.0040.00417.50
8.1.110.0040.00417.46
8.1.100.0000.00817.33
8.1.90.0050.00217.47
8.1.80.0070.00017.32
8.1.70.0000.00717.34
8.1.60.0080.00017.55
8.1.50.0040.00417.43
8.1.40.0040.00417.53
8.1.30.0000.00817.66
8.1.20.0040.00417.70
8.1.10.0040.00417.55
8.1.00.0000.00717.55
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0030.00618.46
8.0.270.0000.00717.13
8.0.260.0000.00617.14
8.0.250.0000.00716.97
8.0.240.0030.00516.96
8.0.230.0000.00716.95
8.0.220.0000.00816.89
8.0.210.0000.00716.90
8.0.200.0060.00016.83
8.0.190.0060.00316.95
8.0.180.0050.00216.81
8.0.170.0040.00416.93
8.0.160.0050.00316.91
8.0.150.0000.00716.74
8.0.140.0040.00416.88
8.0.130.0030.00313.20
8.0.120.0000.00816.85
8.0.110.0050.00216.81
8.0.100.0030.00316.95
8.0.90.0000.00716.85
8.0.80.0070.00816.82
8.0.70.0040.00416.82
8.0.60.0040.00416.85
8.0.50.0040.00416.93
8.0.30.0080.01217.15
8.0.20.0160.00617.40
8.0.10.0000.00716.96
8.0.00.0060.01116.76
7.4.330.0000.00515.14
7.4.320.0000.00616.36
7.4.300.0030.00316.37
7.4.290.0070.00016.49
7.4.280.0000.00816.50
7.4.270.0030.00316.46
7.4.260.0030.00316.56
7.4.250.0030.00516.57
7.4.240.0040.00416.57
7.4.230.0030.00316.25
7.4.220.0030.01516.45
7.4.210.0110.00416.40
7.4.200.0070.00016.58
7.4.160.0080.00816.31
7.4.150.0070.01417.40
7.4.140.0070.01217.86
7.4.130.0160.00416.56
7.4.120.0070.01116.52
7.4.110.0100.00716.64
7.4.100.0190.00616.49
7.4.90.0150.00916.66
7.4.80.0140.00619.39
7.4.70.0140.00316.36
7.4.60.0060.01016.64
7.4.50.0030.00316.13
7.4.40.0130.00916.64
7.4.30.0060.01516.42
7.4.00.0030.00914.77
7.3.330.0030.00513.14
7.3.320.0060.00013.15
7.3.310.0080.00016.35
7.3.300.0030.00316.36
7.3.290.0100.00616.32
7.3.280.0110.00916.34
7.3.270.0110.00717.40
7.3.260.0070.01016.30
7.3.250.0120.00816.39
7.3.240.0000.01616.46
7.3.230.0060.01216.39
7.3.210.0110.00716.37
7.3.200.0130.01319.39
7.3.190.0120.00616.45
7.3.180.0080.00816.59
7.3.170.0000.01816.27
7.3.160.0100.01316.27
7.2.330.0090.00916.36
7.2.320.0070.01016.68
7.2.310.0000.01916.77
7.2.300.0070.01016.80
7.2.290.0120.00416.59
7.2.60.0180.00417.12
7.2.50.0060.00916.97
7.1.200.0090.00315.64
7.1.100.0030.00818.37
7.1.70.0040.00417.16
7.1.60.0000.01417.23
7.1.50.0080.00316.95
7.1.00.0000.08022.42
7.0.200.0100.01016.87
7.0.60.0130.08319.96
7.0.50.0070.06017.79
7.0.40.0100.04719.96
7.0.30.0270.08020.23
7.0.20.0230.05320.16
7.0.10.0100.08320.16
7.0.00.0100.04320.16
5.6.280.0000.06020.87
5.6.210.0100.05320.51
5.6.200.0130.06718.15
5.6.190.0100.08320.52
5.6.180.0200.08720.48
5.6.170.0200.03720.44
5.6.160.0100.05720.56
5.6.150.0100.06318.18
5.6.140.0100.04718.21
5.6.130.0000.09018.28
5.6.120.0030.04721.14
5.6.110.0030.08320.99
5.6.100.0200.07021.13
5.6.90.0030.04720.96
5.6.80.0100.07720.36
5.6.70.4500.04320.41
5.5.350.0200.08720.41
5.5.340.0030.04018.00
5.5.330.0130.08020.19
5.5.320.0300.08320.36
5.5.310.0330.07020.36
5.5.300.0030.04717.98
5.5.290.0100.04018.05
5.5.280.0070.08320.69
5.5.270.0200.06320.77
5.5.260.0070.08320.96
5.5.250.0070.04020.75
5.5.240.0200.03720.20
5.4.450.0230.07719.52
5.4.440.0300.07319.31
5.4.430.0170.06019.27
5.4.420.0270.07019.19
5.4.410.0270.06319.42
5.4.400.0300.05719.09
5.4.390.0230.05718.86
5.4.380.0200.07019.32
5.4.370.0130.06319.06
5.4.360.0270.06319.08
5.4.350.0200.07318.85
5.4.340.0270.06319.09
5.4.320.0230.08019.24
5.4.310.0270.07019.09
5.4.300.0230.04018.94
5.4.290.0170.06719.14
5.4.280.0300.06319.22
5.4.270.0200.06319.08
5.4.260.0170.04718.85
5.4.250.0330.06319.16
5.4.240.0170.04719.04
5.4.230.0300.06719.14
5.4.220.0230.07719.30
5.4.210.0230.06719.15
5.4.200.0300.06719.05
5.4.190.0200.03719.08
5.4.180.0270.06019.05
5.4.170.0300.06319.23
5.4.160.0400.06318.83
5.4.150.0200.05319.07
5.4.140.0230.06016.73
5.4.130.0230.07316.39
5.4.120.0170.07716.55
5.4.110.0300.04016.63
5.4.100.0230.04316.50
5.4.90.0200.07016.60
5.4.80.0130.07316.49
5.4.70.0200.04716.31

preferences:
62.67 ms | 401 KiB | 5 Q