3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Singleton { private static $instance = null; final private function __construct() {} final private function __clone() {} public static function getInstance() { if (!self::$instance) { self::$instance = new self; } return self::$instance; } } $oneInstance = Singleton::getInstance(); $reflection = new ReflectionClass('Singleton'); echo "Cloneable outside:", var_dump($reflection->isCloneable()); $cloner = function () { return clone $this; }; $secondInstance = clone $oneInstance; var_dump($oneInstance, $secondInstance);

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)
8.3.60.0130.00318.43
8.3.50.0110.00821.21
8.3.40.0090.00618.79
8.3.30.0120.00320.42
8.3.20.0080.00020.20
8.3.10.0000.00722.13
8.3.00.0060.00322.51
8.2.180.0150.00616.50
8.2.170.0070.00722.96
8.2.160.0030.01020.23
8.2.150.0040.00424.18
8.2.140.0000.01524.66
8.2.130.0090.00626.16
8.2.120.0060.00919.42
8.2.110.0080.00022.08
8.2.100.0070.00419.32
8.2.90.0060.00319.24
8.2.80.0000.00719.23
8.2.70.0030.00517.63
8.2.60.0030.00618.01
8.2.50.0030.00618.07
8.2.40.0070.00018.16
8.2.30.0000.00717.98
8.2.20.0040.00417.74
8.2.10.0050.00317.79
8.2.00.0000.00819.40
8.1.280.0070.00725.92
8.1.270.0070.00024.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.87
8.1.230.0080.00419.06
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0090.00017.38
8.1.190.0040.00417.66
8.1.180.0000.00820.07
8.1.170.0030.00618.41
8.1.160.0000.00722.09
8.1.150.0030.00518.55
8.1.140.0000.00817.57
8.1.130.0060.00319.61
8.1.120.0020.00517.39
8.1.110.0040.00417.48
8.1.100.0040.00417.55
8.1.90.0040.00417.50
8.1.80.0000.00717.52
8.1.70.0000.00717.43
8.1.60.0000.00817.48
8.1.50.0050.00217.48
8.1.40.0040.00717.53
8.1.30.0000.00717.54
8.1.20.0060.00317.63
8.1.10.0040.00417.60
8.1.00.0050.00317.36
8.0.300.0040.00418.77
8.0.290.0070.00017.05
8.0.280.0030.00318.41
8.0.270.0030.00317.14
8.0.260.0040.00417.01
8.0.250.0030.00317.02
8.0.240.0030.00616.90
8.0.230.0040.00416.93
8.0.220.0030.00316.95
8.0.210.0000.00717.02
8.0.200.0000.00617.08
8.0.190.0000.00717.06
8.0.180.0040.00417.01
8.0.170.0050.00317.00
8.0.160.0070.00016.96
8.0.150.0040.00416.84
8.0.140.0040.00416.81
8.0.130.0030.00313.36
8.0.120.0000.00816.94
8.0.110.0000.00716.98
8.0.100.0000.00716.77
8.0.90.0000.00817.09
8.0.80.0080.00617.02
8.0.70.0000.00816.92
8.0.60.0040.00417.00
8.0.50.0000.00717.01
8.0.30.0120.01117.19
8.0.20.0120.00617.40
8.0.10.0060.00316.92
8.0.00.0110.01016.71
7.4.330.0020.00215.00
7.4.320.0000.00616.43
7.4.300.0000.00616.57
7.4.290.0070.00016.44
7.4.280.0000.00716.47
7.4.270.0000.00716.61
7.4.260.0070.00016.54
7.4.250.0040.00416.58
7.4.240.0060.00116.53
7.4.230.0060.00016.52
7.4.220.0070.01016.60
7.4.210.0080.00716.59
7.4.200.0030.00316.59
7.4.190.0040.00416.42
7.4.160.0160.00416.68
7.4.150.0090.00917.40
7.4.140.0140.00717.86
7.4.130.0050.01116.52
7.4.120.0120.00516.52
7.4.110.0100.00716.66
7.4.100.0060.01216.58
7.4.90.0000.01716.57
7.4.80.0070.01319.39
7.4.70.0060.01216.59
7.4.60.0100.00616.55
7.4.50.0000.00416.43
7.4.40.0070.01122.77
7.4.30.0060.00916.46
7.4.00.0030.01414.65
7.3.330.0000.00513.20
7.3.320.0000.00513.38
7.3.310.0030.00316.23
7.3.300.0030.00316.24
7.3.290.0110.00316.34
7.3.280.0080.01016.35
7.3.270.0100.00717.40
7.3.260.0100.01016.54
7.3.250.0110.00916.52
7.3.240.0090.00816.38
7.3.230.0100.00716.43
7.3.210.0110.00516.54
7.3.200.0040.01316.30
7.3.190.0050.01116.43
7.3.180.0100.00616.55
7.3.170.0060.00916.30
7.3.160.0060.00916.48
7.3.120.0080.00814.68
7.3.10.0130.00316.57
7.3.00.0090.00416.36
7.2.330.0030.01316.84
7.2.320.0100.01016.38
7.2.310.0110.00716.79
7.2.300.0160.00316.75
7.2.290.0150.00016.78
7.2.130.0070.01016.95
7.2.120.0060.00917.06
7.2.110.0090.00316.70
7.2.100.0030.01016.89
7.2.90.0060.00317.20
7.2.80.0000.01117.02
7.2.70.0070.00316.58
7.2.60.0140.00516.89
7.2.50.0000.01317.04
7.2.40.0040.01116.82
7.2.30.0110.00417.05
7.2.20.0070.00716.78
7.2.10.0030.00717.06
7.2.00.0050.00718.15
7.1.250.0110.00415.61
7.1.200.0090.00615.82
7.1.70.0130.00316.79
7.1.60.0070.00416.86
7.1.50.0170.01434.44
7.1.00.0030.04722.40
7.0.200.0080.00816.66
7.0.140.0070.07022.09
7.0.60.0030.06019.95
7.0.50.0070.04317.89
7.0.40.0170.07720.28
7.0.30.0170.04320.06
7.0.20.0330.07320.23
7.0.10.0130.04320.30
7.0.00.0130.08320.11
5.6.280.0100.06720.87
5.6.210.0200.07720.77
5.6.200.0030.04018.12
5.6.190.0100.06720.51
5.6.180.0130.04020.61
5.6.170.0230.06020.49
5.6.160.0030.04320.71
5.6.150.0030.05718.20
5.6.140.0130.08018.18
5.6.130.0100.08318.17
5.6.120.0070.04020.97
5.6.110.0100.04720.99
5.6.100.0130.06721.08
5.6.90.0070.08320.99
5.6.80.0030.08720.53
5.6.70.0030.08020.40
5.5.350.0100.08320.41
5.5.340.0200.07318.02
5.5.330.0070.04720.41
5.5.320.0270.08020.24
5.5.310.0370.07020.28
5.5.300.0200.06317.98
5.5.290.0070.04017.94
5.5.280.0000.06020.88
5.5.270.0170.05320.77
5.5.260.0200.06720.88
5.5.250.0130.05320.72
5.5.240.0070.04320.27
5.4.450.0600.06019.45
5.4.440.0800.06319.62
5.4.430.0370.06019.61
5.4.420.0730.06019.43
5.4.410.0800.06319.43
5.4.400.0330.07018.79
5.4.390.0500.05018.53
5.4.380.0230.05318.73
5.4.370.0170.05018.46
5.4.360.0100.05318.77
5.4.350.0060.04612.02
5.4.340.0090.04512.02
5.4.320.0110.03012.50
5.4.310.0090.03712.50
5.4.300.0060.05012.50
5.4.290.0060.04012.50
5.4.280.0040.03912.40
5.4.270.0110.03812.40
5.4.260.0030.04612.40
5.4.250.0130.05318.99
5.4.240.0100.05018.80
5.4.230.0100.05018.77
5.4.220.0170.05718.77
5.4.210.0070.06718.98
5.4.200.0030.06318.64
5.4.190.0130.05318.80
5.4.180.0130.05018.94
5.4.170.0100.04718.76
5.4.160.0030.05318.81
5.4.150.0070.06718.95
5.4.140.0100.05316.41
5.4.130.0200.05016.40
5.4.120.0100.04716.58
5.4.110.0070.06016.34
5.4.100.0030.06316.50
5.4.90.0100.04716.57
5.4.80.0100.04316.46
5.4.70.0100.06716.47
5.4.60.0030.05316.51
5.4.50.0130.06316.48
5.4.40.0100.05016.59
5.4.30.0030.06716.61
5.4.20.0000.05716.54
5.4.10.0070.07716.46
5.4.00.0100.04315.88
5.3.290.0060.04112.80
5.3.280.0100.05014.70
5.3.270.0070.05714.78
5.3.260.0100.05314.84
5.3.250.0030.05314.70
5.3.240.0070.07014.45
5.3.230.0070.05314.59
5.3.220.0070.05014.55
5.3.210.0100.05014.76
5.3.200.0170.04714.66
5.3.190.0130.04714.71
5.3.180.0070.05014.64
5.3.170.0070.05314.56
5.3.160.0130.04714.73
5.3.150.0030.05314.58
5.3.140.0100.05014.79
5.3.130.0070.07714.65
5.3.120.0030.06714.54
5.3.110.0100.05014.57
5.3.100.0100.06713.88
5.3.90.0000.05714.25
5.3.80.0070.06314.11
5.3.70.0070.07014.20
5.3.60.0100.06713.99
5.3.50.0170.06014.14
5.3.40.0000.06013.92
5.3.30.0030.05013.92
5.3.20.0100.05313.79
5.3.10.0070.05013.82
5.3.00.0070.06013.48
5.2.170.0070.05711.12
5.2.160.0000.05711.11
5.2.150.0170.04311.18
5.2.140.0130.05311.31
5.2.130.0030.04011.18
5.2.120.0000.04311.07
5.2.110.0070.04011.11
5.2.100.0070.04011.20
5.2.90.0000.06311.19
5.2.80.0070.03711.08
5.2.70.0030.04011.09
5.2.60.0070.04711.27
5.2.50.0130.04011.01
5.2.40.0070.04010.90
5.2.30.0000.04710.95
5.2.20.0030.04010.96
5.2.10.0100.05010.70
5.2.00.0070.04010.80
5.1.60.0070.04310.05
5.1.50.0100.0279.98
5.1.40.0030.0379.92
5.1.30.0030.03310.43
5.1.20.0070.03710.43
5.1.10.0100.0279.99
5.1.00.0070.0339.99
5.0.50.0030.0408.51
5.0.40.0030.0278.50
5.0.30.0030.0438.23
5.0.20.0070.0238.05
5.0.10.0030.0278.14
5.0.00.0070.0408.36
4.4.90.0000.0237.32
4.4.80.0000.0237.32
4.4.70.0000.0237.32
4.4.60.0030.0237.32
4.4.50.0070.0237.32
4.4.40.0000.0377.32
4.4.30.0000.0237.32
4.4.20.0030.0207.32
4.4.10.0000.0237.32
4.4.00.0030.0307.32
4.3.110.0070.0177.32
4.3.100.0070.0177.32
4.3.90.0100.0237.32
4.3.80.0030.0377.32
4.3.70.0030.0207.32
4.3.60.0030.0207.32
4.3.50.0070.0307.32
4.3.40.0000.0337.32
4.3.30.0030.0237.32
4.3.20.0030.0207.32
4.3.10.0000.0277.32
4.3.00.0100.0206.28

preferences:
45.23 ms | 401 KiB | 5 Q