3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class Foo { protected static $instances = array(); private function __construct() { } public static function getInstance() { return isset(self::$instances[$className = get_called_class()]) ? self::$instances[$className] : self::$instances[$className] = new static(); } } final class Bar extends Foo { } final class Baz extends Foo { } $bar = Bar::getInstance(); echo get_class($bar), "\n"; $baz = Baz::getInstance(); echo get_class($baz), "\n";

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)
8.3.60.0070.01416.72
8.3.50.0140.00822.06
8.3.40.0070.01018.80
8.3.30.0040.01119.08
8.3.20.0070.00020.04
8.3.10.0120.00323.48
8.3.00.0040.00422.50
8.2.180.0140.00718.23
8.2.170.0030.01022.96
8.2.160.0060.00920.35
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0120.00626.16
8.2.120.0040.00422.30
8.2.110.0100.01322.15
8.2.100.0120.00017.78
8.2.90.0000.00719.17
8.2.80.0050.00317.97
8.2.70.0050.00317.75
8.2.60.0060.00618.04
8.2.50.0030.00618.07
8.2.40.0090.00018.16
8.2.30.0000.00717.99
8.2.20.0080.00017.74
8.2.10.0040.00417.67
8.2.00.0000.00817.54
8.1.280.0100.00725.92
8.1.270.0000.00823.97
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0030.00623.96
8.1.230.0070.00419.19
8.1.220.0040.00417.76
8.1.210.0050.00318.77
8.1.200.0000.00817.35
8.1.190.0040.00417.53
8.1.180.0060.00318.10
8.1.170.0060.00318.66
8.1.160.0000.01021.94
8.1.150.0070.00018.50
8.1.140.0060.00317.29
8.1.130.0030.00317.78
8.1.120.0000.00717.23
8.1.110.0030.00517.39
8.1.100.0000.00717.29
8.1.90.0000.00717.29
8.1.80.0030.00517.31
8.1.70.0080.00017.33
8.1.60.0100.00317.51
8.1.50.0030.00517.52
8.1.40.0040.00417.52
8.1.30.0040.00417.65
8.1.20.0060.00317.54
8.1.10.0050.00317.52
8.1.00.0040.00417.51
8.0.300.0000.00718.77
8.0.290.0040.00417.05
8.0.280.0040.00418.35
8.0.270.0040.00417.22
8.0.260.0040.00416.82
8.0.250.0000.00616.85
8.0.240.0040.00416.84
8.0.230.0030.00316.91
8.0.220.0000.00716.72
8.0.210.0000.00716.71
8.0.200.0000.00616.77
8.0.190.0040.00416.76
8.0.180.0050.00216.80
8.0.170.0040.00416.73
8.0.160.0000.00716.69
8.0.150.0030.00316.78
8.0.140.0070.00016.74
8.0.130.0000.00613.29
8.0.120.0000.00816.80
8.0.110.0070.00016.70
8.0.100.0000.00716.93
8.0.90.0040.00416.77
8.0.80.0110.01116.77
8.0.70.0070.00016.79
8.0.60.0040.00416.90
8.0.50.0050.00216.93
8.0.30.0080.01217.10
8.0.20.0140.00817.40
8.0.10.0080.00016.91
8.0.00.0100.00716.72
7.4.330.0020.00215.08
7.4.320.0000.00716.53
7.4.300.0040.00416.51
7.4.290.0030.00316.50
7.4.280.0000.00716.50
7.4.270.0000.00716.39
7.4.260.0070.00016.52
7.4.250.0050.00316.39
7.4.240.0000.00716.57
7.4.230.0030.00316.63
7.4.220.0030.02216.62
7.4.210.0070.00816.54
7.4.200.0000.00816.50
7.4.190.0030.00316.53
7.4.160.0120.00916.55
7.4.150.0070.01017.40
7.4.140.0090.00917.86
7.4.130.0150.00216.52
7.4.120.0080.01016.52
7.4.110.0100.00616.53
7.4.100.0120.00916.55
7.4.90.0070.01016.52
7.4.80.0030.01419.39
7.4.70.0060.00916.41
7.4.60.0000.01716.40
7.4.50.0050.00216.64
7.4.40.0070.00722.77
7.4.30.0110.00516.53
7.4.00.0080.01014.93
7.3.330.0050.00013.35
7.3.320.0000.00513.23
7.3.310.0040.00416.39
7.3.300.0030.00316.37
7.3.290.0030.01416.34
7.3.280.0060.00816.36
7.3.270.0100.00717.40
7.3.260.0070.01016.34
7.3.250.0180.00516.43
7.3.240.0080.01116.64
7.3.230.0110.00616.47
7.3.210.0230.02616.63
7.3.200.0120.00619.39
7.3.190.0100.00716.51
7.3.180.0030.01316.32
7.3.170.0060.01016.32
7.3.160.0100.01016.34
7.3.120.0080.01015.05
7.3.110.0050.01214.79
7.3.100.0070.00814.98
7.3.90.0040.01014.85
7.3.80.0010.00914.77
7.3.70.0070.00714.77
7.3.60.0110.00714.88
7.3.50.0080.00914.76
7.3.40.0050.00714.86
7.3.30.0090.00514.84
7.3.20.0070.00816.53
7.3.10.0090.00616.65
7.3.00.0080.00716.74
7.2.330.0090.00916.78
7.2.320.0090.00916.34
7.2.310.0060.01216.74
7.2.300.0100.00616.65
7.2.290.0080.00816.57
7.2.250.0030.01414.70
7.2.240.0120.00515.28
7.2.230.0050.01415.11
7.2.220.0050.01014.97
7.2.210.0050.01214.99
7.2.200.0060.00815.00
7.2.190.0050.01115.04
7.2.180.0030.01315.18
7.2.170.0050.00815.08
7.2.160.0090.00615.10
7.2.150.0060.00816.67
7.2.140.0040.01517.16
7.2.130.0120.00316.97
7.2.120.0110.00716.91
7.2.110.0030.00616.91
7.2.100.0040.01116.99
7.2.90.0110.00717.00
7.2.80.0030.01217.02
7.2.70.0030.00716.73
7.2.60.0060.00716.99
7.2.50.0090.00716.99
7.2.40.0030.00916.95
7.2.30.0000.01017.11
7.2.20.0040.01116.75
7.2.10.0110.00417.01
7.2.00.0050.00818.22
7.1.330.0060.01115.81
7.1.320.0120.00115.71
7.1.310.0110.00415.90
7.1.300.0090.00615.67
7.1.290.0030.01215.77
7.1.280.0070.00715.63
7.1.270.0080.00815.76
7.1.260.0050.00715.57
7.1.250.0090.00615.98
7.1.200.0040.00415.93
7.1.100.0000.01118.07
7.1.70.0000.00817.20
7.1.60.0070.01319.29
7.1.50.0130.01317.05
7.1.00.0000.07722.28
7.0.200.0000.00716.66
7.0.140.0030.07022.11
7.0.100.0070.03319.91
7.0.90.0130.07319.95
7.0.80.0100.02719.85
7.0.70.0030.04719.94
7.0.60.0130.04320.02
7.0.50.0130.03020.17
7.0.40.0100.03320.10
7.0.30.0100.03720.13
7.0.20.0000.04720.05
7.0.10.0030.05019.99
7.0.00.0000.03720.04
5.6.280.0070.07021.15
5.6.250.0070.03320.67
5.6.240.0030.07020.50
5.6.230.0000.04720.65
5.6.220.0030.04020.50
5.6.210.0100.08020.61
5.6.200.0070.04021.05
5.6.190.0000.03721.04
5.6.180.0030.04321.03
5.6.170.0170.06321.14
5.6.160.0030.04321.04
5.6.150.0030.03721.06
5.6.140.0030.04321.03
5.6.130.0030.05020.97
5.6.120.0070.03720.95
5.6.110.0030.04321.00
5.6.100.0030.08720.93
5.6.90.0000.06021.06
5.6.80.0130.08020.34
5.6.70.0030.08720.51
5.6.60.0030.08020.49
5.6.50.0130.03320.39
5.6.40.0070.06720.53
5.6.30.0100.05320.43
5.6.20.0070.04020.44
5.6.10.0030.04720.39
5.6.00.0070.07020.38
5.5.380.0000.04020.34
5.5.370.0070.03720.35
5.5.360.0100.03720.54
5.5.350.0030.04320.40
5.5.340.0030.04320.90
5.5.330.0030.04720.89
5.5.320.0030.04020.93
5.5.310.0130.03020.93
5.5.300.0070.04020.89
5.5.290.0070.04020.88
5.5.280.0070.03320.65
5.5.270.0100.04320.87
5.5.260.0070.03720.90
5.5.250.0130.03020.74
5.5.240.0030.04320.20
5.5.230.0000.08020.25
5.5.220.0070.06720.18
5.5.210.0170.06720.16
5.5.200.0130.05320.24
5.5.190.0170.04020.28
5.5.180.0000.08720.16
5.5.160.0070.04020.15
5.5.150.0100.05720.11
5.5.140.0030.06720.08
5.5.130.0030.05320.24
5.5.120.0030.04020.13
5.5.110.0070.04020.13
5.5.100.0100.05720.14
5.5.90.0070.07320.04
5.5.80.0170.06720.15
5.5.70.0100.08020.06
5.5.60.0100.07020.09
5.5.50.0100.07320.02
5.5.40.0170.06720.07
5.5.30.0000.04720.06
5.5.20.0030.05020.00
5.5.10.0130.03020.09
5.5.00.0030.06320.11
5.4.450.0000.04319.56
5.4.440.0130.02319.37
5.4.430.0070.03719.48
5.4.420.0000.04319.37
5.4.410.0070.07019.37
5.4.400.0030.04318.85
5.4.390.0030.04718.87
5.4.380.0070.06718.82
5.4.370.0170.06319.03
5.4.360.0070.06019.12
5.4.350.0100.04019.09
5.4.340.0100.03319.12
5.4.320.0100.07019.16
5.4.310.0070.07719.03
5.4.300.0070.05718.94
5.4.290.0070.04719.13
5.4.280.0100.05319.18
5.4.270.0170.04319.04
5.4.260.0100.06319.16
5.4.250.0130.06719.08
5.4.240.0100.05718.95
5.4.230.0030.06718.84
5.4.220.0030.07718.93
5.4.210.0200.05719.04
5.4.200.0130.06319.08
5.4.190.0070.03719.13
5.4.180.0070.06319.04
5.4.170.0070.06018.86
5.4.160.0100.07019.16
5.4.150.0130.05719.10
5.4.140.0170.05716.38
5.4.130.0100.03716.48
5.4.120.0100.07316.26
5.4.110.0030.03716.52
5.4.100.0000.05716.45
5.4.90.0030.08016.43
5.4.80.0070.05016.46
5.4.70.0100.05016.32
5.4.60.0100.06016.24
5.4.50.0100.03316.36
5.4.40.0170.06316.39
5.4.30.0130.07016.35
5.4.20.0000.09016.44
5.4.10.0070.03316.43
5.4.00.0100.03315.63
5.3.290.0130.05714.64
5.3.280.0100.07314.55
5.3.270.0030.04314.67
5.3.260.0030.04314.54
5.3.250.0030.08014.56
5.3.240.0030.04714.67
5.3.230.0030.04014.59
5.3.220.0000.08014.54
5.3.210.0100.04014.60
5.3.200.0100.03714.63
5.3.190.0100.03314.58
5.3.180.0230.05714.56
5.3.170.0130.07014.50
5.3.160.0030.07714.54
5.3.150.0030.03714.63
5.3.140.0100.07014.70
5.3.130.0070.06314.57
5.3.120.0070.07014.69
5.3.110.0070.05314.58
5.3.100.0030.04014.11
5.3.90.0030.06714.08
5.3.80.0000.04314.05
5.3.70.0000.05313.95
5.3.60.0030.07014.06
5.3.50.0130.06713.88
5.3.40.0100.05313.94
5.3.30.0100.05713.89
5.3.20.0030.03713.62
5.3.10.0100.05313.56
5.3.00.0070.05013.55
5.2.170.0130.05312.15
5.2.160.0000.04312.15
5.2.150.0030.06312.15
5.2.140.0030.05012.15
5.2.130.0000.05712.15
5.2.120.0000.05312.15
5.2.110.0070.06012.15
5.2.100.0070.04312.15
5.2.90.0000.04012.15
5.2.80.0130.05312.15
5.2.70.0130.03312.15
5.2.60.0030.05712.15
5.2.50.0000.07012.15
5.2.40.0000.05712.15
5.2.30.0000.02712.15
5.2.20.0100.04312.15
5.2.10.0100.04712.15
5.2.00.0000.03312.15
5.1.60.0030.04012.15
5.1.50.0000.02312.15
5.1.40.0000.05712.15
5.1.30.0000.03312.15
5.1.20.0030.02312.15
5.1.10.0030.02712.15
5.1.00.0030.02312.15
5.0.50.0030.03012.15
5.0.40.0070.03012.15
5.0.30.0130.04712.15
5.0.20.0070.04012.15
5.0.10.0000.02712.15
5.0.00.0000.03312.15
4.4.90.0070.02712.15
4.4.80.0030.03012.15
4.4.70.0000.02012.15
4.4.60.0000.03012.15
4.4.50.0000.01312.15
4.4.40.0030.05712.15
4.4.30.0030.02012.15
4.4.20.0030.01312.15
4.4.10.0100.02012.15
4.4.00.0070.02012.15
4.3.110.0000.02712.15
4.3.100.0030.03012.15
4.3.90.0030.03712.15
4.3.80.0000.05012.15
4.3.70.0000.02712.15
4.3.60.0030.01312.15
4.3.50.0100.03012.15
4.3.40.0070.04712.15
4.3.30.0000.03312.15
4.3.20.0000.02312.15
4.3.10.0000.01712.15
4.3.00.0000.03312.15

preferences:
41.73 ms | 401 KiB | 5 Q