3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class Foo { protected static $instance = NULL; private function __construct() { } public static function getInstance() { return static::$instance === NULL ? static::$instance = new static() : static::$instance; } } 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)
8.3.60.0140.00716.63
8.3.50.0150.00422.10
8.3.40.0120.00318.97
8.3.30.0070.00718.80
8.3.20.0040.00420.12
8.3.10.0050.00323.65
8.3.00.0040.00422.45
8.2.180.0150.00716.50
8.2.170.0040.01122.96
8.2.160.0110.00420.45
8.2.150.0040.00424.18
8.2.140.0090.00024.66
8.2.130.0030.01026.16
8.2.120.0000.00822.25
8.2.110.0030.00622.27
8.2.100.0070.00317.72
8.2.90.0080.00019.05
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0050.00518.05
8.2.50.0000.00818.07
8.2.40.0050.00318.03
8.2.30.0050.00217.99
8.2.20.0050.00217.52
8.2.10.0000.00717.53
8.2.00.0000.00717.46
8.1.280.0040.01125.92
8.1.270.0040.00423.79
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00323.92
8.1.230.0000.01119.14
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0040.00417.35
8.1.190.0040.00417.30
8.1.180.0090.00018.10
8.1.170.0040.00418.53
8.1.160.0000.00721.86
8.1.150.0080.00018.68
8.1.140.0030.00517.33
8.1.130.0000.00717.85
8.1.120.0040.00417.38
8.1.110.0040.00417.37
8.1.100.0040.00417.40
8.1.90.0040.00317.24
8.1.80.0030.00317.37
8.1.70.0030.00317.19
8.1.60.0070.00417.58
8.1.50.0050.00317.48
8.1.40.0030.00517.50
8.1.30.0080.00017.62
8.1.20.0040.00417.60
8.1.10.0050.00217.46
8.1.00.0040.00417.46
8.0.300.0040.00418.77
8.0.290.0050.00317.05
8.0.280.0030.00318.39
8.0.270.0030.00317.29
8.0.260.0070.00016.66
8.0.250.0030.00316.86
8.0.240.0070.00017.00
8.0.230.0030.00316.89
8.0.220.0030.00316.73
8.0.210.0030.00616.79
8.0.200.0060.00016.81
8.0.190.0030.00316.89
8.0.180.0040.00416.84
8.0.170.0030.00616.88
8.0.160.0000.00716.82
8.0.150.0040.00416.87
8.0.140.0040.00416.81
8.0.130.0000.00613.31
8.0.120.0000.00716.74
8.0.110.0070.00016.72
8.0.100.0080.00016.69
8.0.90.0020.00516.79
8.0.80.0030.01216.86
8.0.70.0050.00316.64
8.0.60.0040.00416.70
8.0.50.0070.00016.79
8.0.30.0110.00817.00
8.0.20.0100.01017.40
8.0.10.0000.00716.97
8.0.00.0070.01016.62
7.4.330.0000.00515.14
7.4.320.0000.00616.56
7.4.300.0000.00616.55
7.4.290.0030.00316.64
7.4.280.0070.00016.53
7.4.270.0000.00716.54
7.4.260.0030.00316.49
7.4.250.0000.00716.45
7.4.240.0070.00016.56
7.4.230.0070.00016.33
7.4.220.0160.01016.60
7.4.210.0080.00616.53
7.4.200.0070.00016.34
7.4.190.0000.00816.66
7.4.160.0060.00916.38
7.4.150.0120.00617.40
7.4.140.0100.00717.86
7.4.130.0110.00616.51
7.4.120.0090.01216.43
7.4.110.0160.00316.61
7.4.100.0100.00716.63
7.4.90.0100.00716.35
7.4.80.0080.01119.39
7.4.70.0150.00416.65
7.4.60.0120.00616.37
7.4.50.0080.00016.18
7.4.40.0040.01522.77
7.4.30.0060.00916.61
7.4.00.0080.00815.14
7.3.330.0050.00013.23
7.3.320.0020.00213.33
7.3.310.0080.00016.22
7.3.300.0000.00616.28
7.3.290.0070.00716.30
7.3.280.0090.00716.36
7.3.270.0150.00917.40
7.3.260.0100.00716.31
7.3.250.0090.01016.36
7.3.240.0060.01216.27
7.3.230.0030.01416.39
7.3.210.0090.00616.25
7.3.200.0150.00619.39
7.3.190.0080.01216.59
7.3.180.0030.01616.26
7.3.170.0030.01316.48
7.3.160.0080.00816.42
7.3.120.0040.00714.78
7.2.330.0150.00416.65
7.2.320.0120.00916.68
7.2.310.0160.00616.74
7.2.300.0060.01216.52
7.2.290.0070.01016.43
7.2.60.0130.00016.57
7.2.00.0040.00819.18
7.1.200.0080.00415.88
7.1.100.0090.00318.09
7.1.70.0060.00617.11
7.1.60.0030.01619.29
7.1.50.0100.01016.88
7.1.00.0030.07722.46
7.0.200.0030.00616.79
7.0.140.0100.06721.95
7.0.60.0100.06719.84
7.0.50.0030.08317.89
7.0.40.0100.08720.26
7.0.30.0230.06720.28
7.0.20.0300.07320.30
7.0.10.0170.04720.25
7.0.00.0030.05020.09
5.6.210.0100.05020.52
5.6.200.0170.06718.23
5.6.190.0200.04320.48
5.6.180.0330.04320.45
5.6.170.0170.04720.61
5.6.160.0170.08020.61
5.6.150.0130.06318.14
5.6.140.0170.03318.16
5.6.130.0130.08018.15
5.6.120.0000.09021.11
5.6.110.0130.07321.07
5.6.100.0100.03321.11
5.6.90.0170.08320.98
5.6.80.0130.04720.45
5.6.70.3300.03320.52
5.5.350.0100.07020.53
5.5.340.0070.07717.99
5.5.330.0030.06320.37
5.5.320.0070.04020.37
5.5.310.0270.03320.56
5.5.300.0070.08318.04
5.5.290.0130.07717.95
5.5.280.0000.04320.88
5.5.270.0000.04320.96
5.5.260.0000.07720.88
5.5.250.0030.04020.69
5.5.240.0030.06020.37
5.4.450.0570.04319.41
5.4.440.0900.06719.45
5.4.430.0870.06319.16
5.4.420.0700.07019.16
5.4.410.0900.05319.42
5.4.400.0800.05719.37
5.4.390.0900.06019.25
5.4.380.0270.04018.74
5.4.370.0470.05318.57
5.4.360.0300.05718.58
5.4.350.0330.05318.57
5.4.340.0470.06318.75
5.4.320.0080.04012.51
5.4.310.0090.04012.51
5.4.300.0100.03712.50
5.4.290.0050.03812.50
5.4.280.0070.04512.40
5.4.270.0080.03812.39
5.4.260.0100.04012.40
5.4.250.0080.04212.40
5.4.240.0040.03812.37
5.4.230.0050.04512.36
5.4.220.0080.04212.37
5.4.210.0050.03612.36
5.4.200.0060.03612.37
5.4.190.0040.03712.36
5.4.180.0070.03812.36
5.4.170.0050.03712.37
5.4.160.0020.04112.36
5.4.150.0050.03612.36
5.4.140.0070.03512.04
5.4.130.0040.03612.03
5.4.120.0050.04111.98
5.4.110.0050.04411.98
5.4.100.0060.03611.99
5.4.90.0080.04011.99
5.4.80.0060.03811.98
5.4.70.0110.04111.98
5.4.60.0060.04211.98
5.4.50.0080.03311.98
5.4.40.0040.03611.97
5.4.30.0030.03711.97
5.4.20.0020.03911.97
5.4.10.0060.03411.97
5.4.00.0070.03411.46
5.3.290.0100.04112.80
5.3.280.0080.03912.70
5.3.270.0060.03812.73
5.3.260.0070.03812.72
5.3.250.0040.03812.72
5.3.240.0060.04212.72
5.3.230.0060.03912.71
5.3.220.0090.03512.68
5.3.210.0050.04212.68
5.3.200.0060.03612.68
5.3.190.0060.03912.68
5.3.180.0050.03712.67
5.3.170.0060.05112.67
5.3.160.0070.04212.68
5.3.150.0050.03812.68
5.3.140.0070.03512.66
5.3.130.0060.03812.66
5.3.120.0090.03612.66
5.3.110.0060.04012.66
5.3.100.0070.03712.12
5.3.90.0000.04012.08
5.3.80.0070.03612.07
5.3.70.0020.04212.07
5.3.60.0010.04112.07
5.3.50.0030.03812.00
5.3.40.0040.03712.00
5.3.30.0060.03411.95
5.3.20.0060.03411.73
5.3.10.0050.03411.70
5.3.00.0090.03311.68
5.2.170.0060.0289.18
5.2.160.0050.0289.18
5.2.150.0060.0319.18
5.2.140.0030.0319.18
5.2.130.0040.0299.14
5.2.120.0030.0299.14
5.2.110.0030.0299.14
5.2.100.0070.0289.14
5.2.90.0050.0289.14
5.2.80.0040.0309.13
5.2.70.0050.0299.13
5.2.60.0040.0309.09
5.2.50.0040.0309.06
5.2.40.0030.0309.04
5.2.30.0040.0409.00
5.2.20.0050.0289.01
5.2.10.0040.0288.91
5.2.00.0040.0308.76
5.1.60.0020.0268.05
5.1.50.0030.0268.05
5.1.40.0050.0248.04
5.1.30.0000.0298.38
5.1.20.0030.0288.41
5.1.10.0030.0268.13
5.1.00.0020.0288.12
5.0.50.0020.0246.61
5.0.40.0020.0206.46
5.0.30.0040.0316.28
5.0.20.0040.0216.24
5.0.10.0040.0266.22
5.0.00.0020.0346.21
4.4.90.0020.0214.78
4.4.80.0040.0144.75
4.4.70.0030.0154.76
4.4.60.0020.0164.76
4.4.50.0020.0164.77
4.4.40.0040.0244.71
4.4.30.0010.0174.76
4.4.20.0040.0144.85
4.4.10.0030.0154.84
4.4.00.0050.0234.76
4.3.110.0010.0174.66
4.3.100.0020.0174.66
4.3.90.0020.0154.64
4.3.80.0030.0244.58
4.3.70.0020.0154.63
4.3.60.0020.0164.63
4.3.50.0030.0154.63
4.3.40.0020.0244.54
4.3.30.0040.0143.27
4.3.20.0010.0173.25
4.3.10.0010.0163.21
4.3.00.0130.02713.14

preferences:
40.94 ms | 401 KiB | 5 Q