3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class T { static public $instanses; final private function __construct(){ } public static function getInstance() { var_dump(static::$instanses); if (!(static::$instanses instanceof static)) { static::$instanses = new static; } var_dump(static::$instanses); return static::$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)
8.3.60.0220.00018.43
8.3.50.0150.00521.14
8.3.40.0090.00919.02
8.3.30.0070.00718.79
8.3.20.0070.00020.35
8.3.10.0050.00323.61
8.3.00.0050.00322.34
8.2.180.0120.00618.29
8.2.170.0110.00322.96
8.2.160.0070.00720.43
8.2.150.0040.00425.66
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0040.00417.75
8.2.110.0090.00022.23
8.2.100.0060.00617.75
8.2.90.0050.00219.17
8.2.80.0080.00017.97
8.2.70.0040.00417.63
8.2.60.0080.00017.93
8.2.50.0030.00618.07
8.2.40.0050.00321.07
8.2.30.0030.00519.90
8.2.20.0040.00417.63
8.2.10.0000.00718.00
8.2.00.0030.00617.93
8.1.280.0100.01025.92
8.1.270.0060.00320.23
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0030.00624.03
8.1.230.0040.00817.42
8.1.220.0040.00417.79
8.1.210.0080.00018.77
8.1.200.0060.00317.50
8.1.190.0030.00517.22
8.1.180.0080.00018.10
8.1.170.0040.00418.56
8.1.160.0040.00421.96
8.1.150.0080.00018.79
8.1.140.0030.00617.33
8.1.130.0000.00717.72
8.1.120.0080.00017.38
8.1.110.0080.00017.46
8.1.100.0030.00317.50
8.1.90.0070.00017.32
8.1.80.0030.00317.34
8.1.70.0030.00317.45
8.1.60.0050.00317.50
8.1.50.0050.00317.53
8.1.40.0030.00717.52
8.1.30.0030.00617.67
8.1.20.0040.00417.68
8.1.10.0040.00417.61
8.1.00.0040.00417.43
8.0.300.0040.00418.77
8.0.290.0060.00316.63
8.0.280.0000.00718.45
8.0.270.0070.00017.26
8.0.260.0060.00017.29
8.0.250.0080.00017.03
8.0.240.0000.00616.90
8.0.230.0030.00316.98
8.0.220.0000.00717.02
8.0.210.0050.00217.01
8.0.200.0030.00316.98
8.0.190.0030.00617.09
8.0.180.0000.00816.88
8.0.170.0050.00316.97
8.0.160.0030.00516.98
8.0.150.0030.00316.86
8.0.140.0000.00716.93
8.0.130.0000.00913.34
8.0.120.0030.00516.92
8.0.110.0000.00717.00
8.0.100.0080.00017.02
8.0.90.0000.00716.99
8.0.80.0070.00716.91
8.0.70.0000.00716.95
8.0.60.0090.00016.93
8.0.50.0000.00716.93
8.0.30.0140.00416.97
8.0.20.0100.00917.40
8.0.10.0040.00417.13
8.0.00.0070.00916.73
7.4.330.0000.00615.08
7.4.320.0000.00616.67
7.4.300.0030.00316.55
7.4.290.0070.00016.58
7.4.280.0000.00716.49
7.4.270.0070.00016.46
7.4.260.0000.00716.50
7.4.250.0000.00916.48
7.4.240.0050.00316.54
7.4.230.0030.00316.63
7.4.220.0120.00616.60
7.4.210.0060.01016.43
7.4.200.0040.00416.41
7.4.160.0090.00616.43
7.4.150.0030.01417.40
7.4.140.0120.00817.86
7.4.130.0120.00916.67
7.4.120.0120.00716.63
7.4.110.0200.00316.45
7.4.100.0170.00716.56
7.4.90.0160.00316.52
7.4.80.0090.01819.39
7.4.70.0100.00716.57
7.4.60.0080.00816.60
7.4.50.0020.00216.51
7.4.40.0030.01416.61
7.4.30.0140.00316.62
7.4.00.0000.01615.13
7.3.330.0050.00413.45
7.3.320.0030.00313.24
7.3.310.0040.00416.42
7.3.300.0030.00316.25
7.3.290.0040.01016.31
7.3.280.0050.01316.35
7.3.270.0060.01217.40
7.3.260.0120.00616.53
7.3.250.0110.00616.46
7.3.240.0100.01016.53
7.3.230.0170.00016.39
7.3.210.0070.01016.62
7.3.200.0170.00319.39
7.3.190.0140.00916.51
7.3.180.0040.01416.44
7.3.170.0030.01416.47
7.3.160.0120.00616.50
7.3.120.0070.01114.77
7.3.110.0090.00614.91
7.3.100.0140.00314.73
7.3.90.0050.00514.98
7.3.80.0080.00314.78
7.3.70.0040.01114.81
7.3.60.0060.00814.98
7.3.50.0070.00414.60
7.3.40.0000.01314.86
7.3.30.0000.01514.90
7.3.20.0000.01316.71
7.3.10.0040.00916.49
7.3.00.0070.00716.58
7.2.330.0110.00816.41
7.2.320.0170.00716.55
7.2.310.0160.00316.70
7.2.300.0090.00916.56
7.2.290.0070.01016.84
7.2.240.0060.00915.08
7.2.230.0100.00515.18
7.2.220.0130.00314.95
7.2.210.0090.00615.10
7.2.200.0070.00415.17
7.2.190.0090.00315.04
7.2.180.0030.01015.17
7.2.170.0030.01015.20
7.2.160.0070.00714.95
7.2.150.0040.00716.76
7.2.140.0030.01016.68
7.2.130.0030.01016.88
7.2.120.0040.01416.88
7.2.110.0000.01616.80
7.2.100.0070.00416.90
7.2.90.0040.01116.64
7.2.80.0050.00716.87
7.2.70.0000.01116.74
7.2.60.0070.00916.76
7.2.50.0070.00716.93
7.2.40.0000.01016.89
7.2.30.0140.00416.89
7.2.20.0100.00716.79
7.2.10.0040.00816.94
7.2.00.0040.01118.23
7.1.330.0100.00315.85
7.1.320.0090.00615.49
7.1.310.0090.00615.56
7.1.300.0030.01015.63
7.1.290.0000.01415.73
7.1.280.0000.01015.90
7.1.270.0030.01015.49
7.1.260.0030.00915.57
7.1.250.0000.01315.69
7.1.200.0000.01415.51
7.1.100.0090.00618.33
7.1.70.0000.00717.18
7.1.60.0070.01720.03
7.1.50.0070.00716.89
7.1.00.0030.07722.54
7.0.200.0070.00016.79
7.0.60.0100.08319.92
7.0.50.0100.06017.86
7.0.40.0100.04020.11
7.0.30.0270.08020.17
7.0.20.0230.06320.09
7.0.10.0030.04720.08
7.0.00.0030.08720.30
5.6.280.0030.07321.02
5.6.210.0100.08720.72
5.6.200.0130.06018.22
5.6.190.0130.03320.57
5.6.180.0230.05320.41
5.6.170.0300.07020.43
5.6.160.0100.07020.46
5.6.150.0030.04018.24
5.6.140.0100.05318.14
5.6.130.0100.07018.24
5.6.120.0100.08321.15
5.6.110.0070.03721.05
5.6.100.0030.08721.09
5.6.90.0070.03720.97
5.6.80.0100.07720.51
5.6.70.4130.03720.28
5.5.350.0270.08020.45
5.5.340.0130.07317.99
5.5.330.0100.07020.29
5.5.320.0300.06720.34
5.5.310.0370.07720.21
5.5.300.0130.05017.97
5.5.290.0000.05317.96
5.5.280.0100.03320.66
5.5.270.0270.07020.77
5.5.260.0030.08320.90
5.5.250.0030.05720.66
5.5.240.4130.03320.27
5.4.450.0870.05719.55
5.4.440.0830.06019.70
5.4.430.0970.04319.70
5.4.420.0900.05319.16
5.4.410.0900.05319.25
5.4.400.0900.05719.15
5.4.390.0970.04319.39
5.4.380.0930.05019.23
5.4.370.0870.05318.84
5.4.360.0930.05018.88
5.4.350.0830.05319.23
5.4.340.0830.06719.25
5.4.320.0830.05319.06
5.4.310.0370.05719.11
5.4.300.0170.05019.25
5.4.290.0270.03719.14
5.4.280.0770.04719.28
5.4.270.0900.05018.97
5.4.260.0770.05319.37
5.4.250.0800.05019.12
5.4.240.0800.06019.21
5.4.230.0770.05718.97
5.4.220.1130.04718.97
5.4.210.0770.05719.30
5.4.200.1030.05316.76
5.4.190.0930.05019.07
5.4.180.0870.05719.08
5.4.170.1030.05019.29
5.4.160.0830.05319.01
5.4.150.0930.05718.96
5.4.140.0900.05016.51
5.4.130.0830.05716.40
5.4.120.0830.05716.55
5.4.110.0930.04316.54
5.4.100.1030.05716.42
5.4.90.0770.06316.56
5.4.80.1030.04016.30
5.4.70.0800.05716.38
5.4.60.0130.06716.54
5.4.50.0070.03016.51
5.4.40.0270.07016.51
5.4.30.0370.06016.38
5.4.20.0300.06716.42

preferences:
40.28 ms | 401 KiB | 5 Q