3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Singleton { private static $instance = null; final private function __construct() {} final private function __clone() {return false;} public static function getInstance() { if (!self::$instance) { self::$instance = new self; } return self::$instance; } } $oneInstance = Singleton::getInstance(); echo "Cloneable outside:", var_dump((new ReflectionClass('Singleton'))->isCloneable()); $cloner = function () { return clone $this; }; $secondInstance = $cloner->bindTo($oneInstance, 'Singleton')->__invoke(); 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)
8.3.60.0080.01218.28
8.3.50.0120.00921.21
8.3.40.0130.00918.75
8.3.30.0100.00720.29
8.3.20.0060.00320.05
8.3.10.0050.00321.92
8.3.00.0000.00722.45
8.2.180.0070.01416.63
8.2.170.0180.00422.96
8.2.160.0140.00022.11
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00020.82
8.2.110.0070.00319.22
8.2.100.0090.00717.91
8.2.90.0040.00419.27
8.2.80.0050.00319.21
8.2.70.0030.00617.25
8.2.60.0030.00618.03
8.2.50.0050.00318.07
8.2.40.0080.00018.09
8.2.30.0000.00819.41
8.2.20.0000.00817.60
8.2.10.0040.00417.76
8.2.00.0030.00617.60
8.1.280.0180.00425.92
8.1.270.0000.00823.99
8.1.260.0080.00626.35
8.1.250.0040.00428.09
8.1.240.0090.00023.87
8.1.230.0040.00721.02
8.1.220.0000.00818.77
8.1.210.0020.00819.00
8.1.200.0090.00017.36
8.1.190.0080.00017.63
8.1.180.0080.00018.10
8.1.170.0030.00518.60
8.1.160.0000.00718.95
8.1.150.0000.00818.61
8.1.140.0040.00417.34
8.1.130.0030.00317.75
8.1.120.0080.00317.53
8.1.110.0070.00017.41
8.1.100.0000.00717.39
8.1.90.0040.00417.45
8.1.80.0050.00317.49
8.1.70.0030.00317.46
8.1.60.0000.00917.65
8.1.50.0000.00717.40
8.1.40.0060.00617.54
8.1.30.0080.00017.68
8.1.20.0080.00017.56
8.1.10.0000.00817.51
8.1.00.0040.00417.51
8.0.300.0070.00019.85
8.0.290.0070.00017.18
8.0.280.0020.00518.48
8.0.270.0000.00817.35
8.0.260.0000.00816.81
8.0.250.0000.00716.98
8.0.240.0030.00616.89
8.0.230.0000.00817.05
8.0.220.0030.00616.92
8.0.210.0000.00716.92
8.0.200.0030.00317.02
8.0.190.0000.00816.95
8.0.180.0000.00817.02
8.0.170.0080.00016.86
8.0.160.0030.00316.95
8.0.150.0080.00016.88
8.0.140.0030.00716.92
8.0.130.0030.00313.38
8.0.120.0000.00716.80
8.0.110.0040.00416.95
8.0.100.0000.00717.02
8.0.90.0000.00716.93
8.0.80.0060.00917.00
8.0.70.0070.00016.86
8.0.60.0000.00716.97
8.0.50.0020.00516.88
8.0.30.0110.00817.12
8.0.20.0100.01317.40
8.0.10.0050.00316.93
8.0.00.0150.00516.75
7.4.330.0000.00516.74
7.4.320.0000.00616.67
7.4.300.0060.00016.57
7.4.290.0030.00316.54
7.4.280.0030.00316.64
7.4.270.0000.00716.55
7.4.260.0050.00013.31
7.4.250.0040.00416.60
7.4.240.0000.00716.54
7.4.230.0000.00716.52
7.4.220.0040.01316.72
7.4.210.0080.00716.59
7.4.200.0040.00416.32
7.4.190.0030.00316.43
7.4.160.0080.01216.59
7.4.150.0090.00917.40
7.4.140.0060.01117.86
7.4.130.0040.01216.59
7.4.120.0100.01016.53
7.4.110.0060.00916.58
7.4.100.0060.01516.43
7.4.90.0090.00916.52
7.4.80.0070.01019.39
7.4.70.0100.00716.37
7.4.60.0040.01316.51
7.4.50.0040.00416.50
7.4.40.0070.01022.77
7.4.30.0130.00316.63
7.4.00.0070.01015.05
7.3.330.0000.00713.38
7.3.320.0030.00313.27
7.3.310.0070.00016.25
7.3.300.0040.00416.17
7.3.290.0060.00916.32
7.3.280.0100.00716.24
7.3.270.0130.00317.40
7.3.260.0110.00716.16
7.3.250.0100.00716.53
7.3.240.0140.00416.31
7.3.230.0130.00316.39
7.3.210.0040.01416.55
7.3.200.0100.00719.39
7.3.190.0070.01416.21
7.3.180.0090.00616.63
7.3.170.0090.00616.27
7.3.160.0140.00316.61
7.3.120.0070.00714.77
7.2.330.0030.01316.70
7.2.320.0070.01016.84
7.2.310.0070.01616.82
7.2.300.0140.00316.75
7.2.290.0160.00516.68
7.2.60.0100.00316.64
7.2.00.0040.01219.02
7.1.200.0040.00715.91
7.1.100.0000.01118.00
7.1.70.0000.00817.02
7.1.60.0040.01919.17
7.1.50.0100.00717.05
7.1.00.0070.03022.48
7.0.200.0030.00716.58
7.0.140.0030.07722.05
7.0.100.0100.06320.01
7.0.90.0200.06319.98
7.0.80.0000.05019.90
7.0.70.0170.07019.93
7.0.60.0000.09019.96
7.0.50.0230.04320.32
7.0.40.0100.04720.00
7.0.30.0070.08320.13
7.0.20.0030.04320.09
7.0.10.0070.07720.04
7.0.00.0070.05020.10
5.6.280.0000.07721.07
5.6.250.0030.07020.69
5.6.240.0100.08320.55
5.6.230.0030.04320.70
5.6.220.0100.04720.50
5.6.210.0030.09320.66
5.6.200.0070.08020.95
5.6.190.0070.09720.97
5.6.180.0170.07320.94
5.6.170.0070.08021.05
5.6.160.0030.05321.03
5.6.150.0170.07021.04
5.6.140.0070.07721.11
5.6.130.0100.07721.12
5.6.120.0000.05021.09
5.6.110.0030.05321.16
5.6.100.0100.05021.04
5.6.90.0030.08021.04
5.6.80.0130.06720.45
5.6.70.0030.07720.44
5.6.60.0070.08020.43
5.6.50.0070.07720.41
5.6.40.0030.07320.45
5.6.30.0100.07320.50
5.6.20.0130.08020.42
5.6.10.0070.06720.38
5.6.00.0100.08320.42
5.5.380.0100.03720.50
5.5.370.0030.05020.55
5.5.360.0030.05320.39
5.5.350.0100.06720.38
5.5.340.0070.05020.94
5.5.330.0100.06320.84
5.5.320.0000.05320.65
5.5.310.0170.07020.91
5.5.300.0030.07720.89
5.5.290.0070.08020.93
5.5.280.0130.04720.77
5.5.270.0100.04020.76
5.5.260.0100.07320.77
5.5.250.0170.07020.59
5.5.240.0070.04020.19
5.5.230.0070.09020.14
5.5.220.0030.04020.21
5.5.210.0100.07320.18
5.5.200.0070.07320.22
5.5.190.0030.08020.00
5.5.180.0000.08320.27
5.5.160.0130.05320.14
5.5.150.0030.05720.28
5.5.140.0030.07020.25
5.5.130.0070.06720.26
5.5.120.0030.08020.09
5.5.110.0070.04020.27
5.5.100.0030.08020.02
5.5.90.0070.03719.95
5.5.80.0070.07320.11
5.5.70.0070.06720.11
5.5.60.0070.03320.09
5.5.50.0130.06320.06
5.5.40.0130.07020.16
5.5.30.0030.05020.15
5.5.20.0000.04320.11
5.5.10.0100.06720.01
5.5.00.0100.04020.11
5.4.450.0030.08319.46
5.4.440.0070.07719.45
5.4.430.0100.03719.55
5.4.420.0030.05019.37
5.4.410.0170.05319.06
5.4.400.0000.05019.04
5.4.390.0100.08019.23
5.4.380.0070.06718.88
5.4.370.0070.05319.18
5.4.360.0030.08019.21
5.4.350.0070.08019.05
5.4.340.0070.07319.13
5.4.320.0070.04718.87
5.4.310.0100.04719.03
5.4.300.0030.05019.20
5.4.290.0000.08019.09
5.4.280.0030.03718.88
5.4.270.0070.07018.95
5.4.260.0000.06319.09
5.4.250.0230.02018.89
5.4.240.0070.06719.02
5.4.230.0000.07319.17
5.4.220.0130.06018.87
5.4.210.0000.05318.84
5.4.200.0030.05019.12
5.4.190.0000.04018.89
5.4.180.0170.02719.04
5.4.170.0070.03319.11
5.4.160.0030.04319.07
5.4.150.0030.07718.85
5.4.140.0030.04016.18
5.4.130.0030.03716.44
5.4.120.0030.03316.43
5.4.110.0070.06716.44
5.4.100.0100.03016.35
5.4.90.0000.05716.36
5.4.80.0130.05316.32
5.4.70.0030.07716.42
5.4.60.0000.07316.41
5.4.50.0100.07016.24
5.4.40.0070.07016.50
5.4.30.0070.05016.36
5.4.20.0030.07716.38
5.4.10.0100.02716.40
5.4.00.0030.05315.86
5.3.290.0070.08014.81
5.3.280.0030.04714.62
5.3.270.0070.07714.60
5.3.260.0000.06014.67
5.3.250.0000.05314.58
5.3.240.0170.06314.73
5.3.230.0000.04014.63
5.3.220.0100.05314.50
5.3.210.0100.06314.58
5.3.200.0030.08314.55
5.3.190.0070.03314.52
5.3.180.0100.05714.66
5.3.170.0100.07314.66
5.3.160.0030.08014.52
5.3.150.0100.04014.69
5.3.140.0100.05014.68
5.3.130.0070.05714.62
5.3.120.0000.03714.57
5.3.110.0030.06714.63
5.3.100.0070.07713.98
5.3.90.0000.04314.05
5.3.80.0000.07714.13
5.3.70.0070.04014.05
5.3.60.0070.04014.14
5.3.50.0070.05313.89
5.3.40.0000.06314.07
5.3.30.0030.03714.02
5.3.20.0130.06713.70
5.3.10.0030.04713.71
5.3.00.0070.07313.54
5.2.170.0000.06011.53
5.2.160.0070.05311.53
5.2.150.0100.05011.53
5.2.140.0000.06711.53
5.2.130.0030.05011.53
5.2.120.0100.05711.53
5.2.110.0070.06011.53
5.2.100.0030.05311.53
5.2.90.0070.02311.53
5.2.80.0000.05711.53
5.2.70.0070.06011.53
5.2.60.0030.04711.53
5.2.50.0030.06711.53
5.2.40.0030.06311.53
5.2.30.0070.06311.53
5.2.20.0030.06311.53
5.2.10.0000.04311.53
5.2.00.0000.06311.53
5.1.60.0030.02311.53
5.1.50.0030.05311.53
5.1.40.0030.05711.53
5.1.30.0030.05711.53
5.1.20.0070.05711.53
5.1.10.0030.05711.53
5.1.00.0070.04711.53
5.0.50.0100.03711.53
5.0.40.0000.04011.53
5.0.30.0000.06711.53
5.0.20.0070.03311.53
5.0.10.0000.02711.53
5.0.00.0030.05711.53
4.4.90.0070.03011.53
4.4.80.0070.03311.53
4.4.70.0030.02711.53
4.4.60.0000.01311.53
4.4.50.0000.03711.53
4.4.40.0030.02311.53
4.4.30.0030.03711.53
4.4.20.0000.03711.53
4.4.10.0000.03711.53
4.4.00.0030.05011.53
4.3.110.0000.04011.53
4.3.100.0030.01311.53
4.3.90.0000.02311.53
4.3.80.0000.04011.53
4.3.70.0000.02711.53
4.3.60.0000.04711.53
4.3.50.0000.03711.53
4.3.40.0170.01711.53
4.3.30.0100.01311.53
4.3.20.0000.03011.53
4.3.10.0000.01711.53
4.3.00.0000.01711.53

preferences:
38.91 ms | 401 KiB | 5 Q