3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { 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(); 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)
8.3.60.0100.01418.40
8.3.50.0100.01221.93
8.3.40.0100.01018.76
8.3.30.0060.01219.97
8.3.20.0000.00720.34
8.3.10.0060.00322.04
8.3.00.0030.00522.51
8.2.180.0160.00318.41
8.2.170.0070.00722.96
8.2.160.0100.00320.39
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0030.00526.16
8.2.120.0080.00019.54
8.2.110.0090.00320.22
8.2.100.0060.00619.28
8.2.90.0080.00019.28
8.2.80.0000.00819.09
8.2.70.0060.00317.50
8.2.60.0080.00017.93
8.2.50.0050.00318.07
8.2.40.0030.00618.03
8.2.30.0040.00418.06
8.2.20.0000.00717.70
8.2.10.0040.00417.56
8.2.00.0080.00017.67
8.1.280.0100.00325.92
8.1.270.0000.00824.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.79
8.1.230.0110.00018.99
8.1.220.0020.00517.74
8.1.210.0030.00618.77
8.1.200.0000.01017.25
8.1.190.0000.00817.39
8.1.180.0040.00420.10
8.1.170.0040.00418.62
8.1.160.0000.00722.14
8.1.150.0000.00818.44
8.1.140.0000.00717.32
8.1.130.0030.00317.77
8.1.120.0000.00717.39
8.1.110.0000.00817.40
8.1.100.0080.00017.31
8.1.90.0070.00017.33
8.1.80.0070.00017.27
8.1.70.0070.00017.21
8.1.60.0060.00317.51
8.1.50.0040.00417.50
8.1.40.0000.00817.48
8.1.30.0080.00017.48
8.1.20.0000.00817.63
8.1.10.0000.00817.48
8.1.00.0060.00617.52
8.0.300.0000.00718.77
8.0.290.0030.00517.18
8.0.280.0070.00018.43
8.0.270.0070.00017.20
8.0.260.0000.00616.88
8.0.250.0000.00716.96
8.0.240.0000.00816.93
8.0.230.0070.00016.84
8.0.220.0000.00616.73
8.0.210.0030.00516.90
8.0.200.0000.00616.88
8.0.190.0000.00716.93
8.0.180.0000.00916.92
8.0.170.0000.00816.88
8.0.160.0040.00416.97
8.0.150.0000.00716.85
8.0.140.0040.00416.75
8.0.130.0060.00013.39
8.0.120.0040.00416.86
8.0.110.0040.00416.81
8.0.100.0050.00216.86
8.0.90.0080.00017.01
8.0.80.0060.00916.87
8.0.70.0040.00416.89
8.0.60.0000.00816.94
8.0.50.0080.00016.94
8.0.30.0130.00617.00
8.0.20.0140.00717.40
8.0.10.0070.00016.89
8.0.00.0130.01216.72
7.4.330.0020.00215.00
7.4.320.0040.00416.50
7.4.300.0000.00916.44
7.4.290.0000.00716.47
7.4.280.0000.00716.45
7.4.270.0030.00316.59
7.4.260.0070.00016.43
7.4.250.0030.00316.42
7.4.240.0020.00516.51
7.4.230.0000.00716.34
7.4.220.0040.01416.48
7.4.210.0090.00616.45
7.4.200.0030.00316.36
7.4.190.0030.00316.64
7.4.160.0100.01316.70
7.4.150.0040.01417.40
7.4.140.0100.01017.86
7.4.130.0160.00416.58
7.4.120.0070.01316.56
7.4.110.0080.00816.49
7.4.100.0160.00316.42
7.4.90.0070.01116.41
7.4.80.0120.00619.39
7.4.70.0110.00716.43
7.4.60.0080.00816.21
7.4.50.0090.00016.26
7.4.40.0070.00722.77
7.4.30.0080.00816.40
7.4.00.0110.00315.01
7.3.330.0000.00613.23
7.3.320.0030.00313.12
7.3.310.0000.00716.33
7.3.300.0030.00316.17
7.3.290.0110.00416.38
7.3.280.0110.00816.29
7.3.270.0130.00617.40
7.3.260.0060.01216.25
7.3.250.0100.01116.35
7.3.240.0130.00316.50
7.3.230.0080.00816.55
7.3.210.0080.00916.28
7.3.200.0170.00019.39
7.3.190.0090.01316.51
7.3.180.0100.00716.56
7.3.170.0100.00716.57
7.3.160.0030.01316.52
7.3.120.0130.00015.06
7.2.330.0150.00316.27
7.2.320.0040.01716.39
7.2.310.0120.01216.60
7.2.300.0030.01316.64
7.2.290.0100.01016.32
7.2.60.0070.01016.66
7.2.50.0100.00716.81
7.1.200.0120.00015.55
7.1.100.0040.00817.85
7.1.70.0070.00316.80
7.1.60.0040.02119.43
7.1.50.0110.01516.51
7.1.00.0030.07022.28
7.0.200.0070.00316.68
7.0.140.0100.06721.95
7.0.60.0070.08720.07
7.0.50.0130.07317.89
7.0.40.0130.06720.14
7.0.30.0530.06720.31
7.0.20.0330.06720.10
7.0.10.0030.09020.07
7.0.00.0030.04720.15
5.6.280.0070.07020.78
5.6.210.0100.07720.63
5.6.200.0030.07018.19
5.6.190.0030.07320.67
5.6.180.3100.05320.46
5.6.170.0330.03020.55
5.6.160.0000.04320.48
5.6.150.0030.04318.19
5.6.140.0070.07718.13
5.6.130.0070.04318.15
5.6.120.0070.04021.10
5.6.110.0000.07320.98
5.6.100.0030.09321.00
5.6.90.0030.08320.97
5.6.80.0130.03320.49
5.6.70.0300.07320.48
5.5.350.0400.05720.43
5.5.340.0070.04018.02
5.5.330.0030.04720.41
5.5.320.0470.06720.24
5.5.310.0200.08320.37
5.5.300.0100.07717.97
5.5.290.0030.05718.01
5.5.280.0130.07320.77
5.5.270.0070.07720.74
5.5.260.0030.04320.77
5.5.250.0070.07720.62
5.5.240.0200.04720.20
5.4.450.0930.03719.36
5.4.440.0930.06019.16
5.4.430.0930.05319.38
5.4.420.0400.05719.59
5.4.410.0900.06019.46
5.4.400.0470.07318.82
5.4.390.0300.05718.61
5.4.380.0270.05018.75
5.4.370.0130.05318.61
5.4.360.0070.06318.79
5.4.350.0110.06012.02
5.4.340.0070.04012.02
5.4.320.0130.07612.51
5.4.310.0050.04312.51
5.4.300.0090.04712.51
5.4.290.0060.03912.50
5.4.280.0070.05012.40
5.4.270.0070.06312.40
5.4.260.0050.04012.40
5.4.250.0030.04112.40
5.4.240.0100.05319.00
5.4.230.0070.05718.83
5.4.220.0070.06018.74
5.4.210.0030.05718.64
5.4.200.0170.04018.90
5.4.190.0100.05718.83
5.4.180.0070.07019.00
5.4.170.0070.05318.93
5.4.160.0030.05318.82
5.4.150.0100.05318.82
5.4.140.0100.05016.44
5.4.130.0100.04316.47
5.4.120.0070.05016.56
5.4.110.0070.05016.42
5.4.100.0070.04716.40
5.4.90.0170.05716.50
5.4.80.0100.04316.40
5.4.70.0030.05316.40
5.4.60.0030.06316.51
5.4.50.0030.05016.48
5.4.40.0070.05316.60
5.4.30.0070.06316.56
5.4.20.0100.06316.33
5.4.10.0000.08016.39
5.4.00.0030.05015.71
5.3.290.0130.04812.80
5.3.280.0030.05714.66
5.3.270.0130.05314.68
5.3.260.0100.08014.63
5.3.250.0000.05314.83
5.3.240.0100.04714.60
5.3.230.0070.05014.61
5.3.220.0070.05014.65
5.3.210.0130.04714.66
5.3.200.0130.04014.65
5.3.190.0070.06314.57
5.3.180.0030.05314.47
5.3.170.0070.06714.56
5.3.160.0070.05014.59
5.3.150.0070.05014.67
5.3.140.0100.05014.55
5.3.130.0000.06014.54
5.3.120.0070.05314.46
5.3.110.0130.10314.63
5.3.100.0100.04714.06
5.3.90.0100.05014.18
5.3.80.0070.05714.10
5.3.70.0070.04714.02
5.3.60.0030.06014.08
5.3.50.0070.06314.05
5.3.40.0070.06314.12
5.3.30.0070.04713.88
5.3.20.0000.05313.68
5.3.10.0000.05313.83
5.3.00.0200.05713.82
5.2.170.0100.03311.12
5.2.160.0000.05711.11
5.2.150.0030.06011.12
5.2.140.0070.04011.22
5.2.130.0070.03711.27
5.2.120.0070.03710.94
5.2.110.0030.04011.20
5.2.100.0030.04011.07
5.2.90.0100.03311.09
5.2.80.0070.04011.07
5.2.70.0070.05711.27
5.2.60.0170.02711.23
5.2.50.0070.04711.09
5.2.40.0130.05011.07
5.2.30.0030.04311.04
5.2.20.0100.03711.03
5.2.10.0030.05310.86
5.2.00.0070.04310.80
5.1.60.0100.0309.96
5.1.50.0030.0339.98
5.1.40.0030.04010.03
5.1.30.0000.04010.43
5.1.20.0030.03710.45
5.1.10.0070.03310.03
5.1.00.0070.04310.17
5.0.50.0070.0278.52
5.0.40.0000.0308.46
5.0.30.0030.0408.25
5.0.20.0070.0238.20
5.0.10.0100.0208.37
5.0.00.0000.0438.21
4.4.90.0000.0237.27
4.4.80.0000.0237.27
4.4.70.0000.0237.27
4.4.60.0000.0237.27
4.4.50.0030.0207.27
4.4.40.0000.0377.27
4.4.30.0070.0237.27
4.4.20.0000.0237.27
4.4.10.0000.0337.27
4.4.00.0130.0377.27
4.3.110.0000.0237.27
4.3.100.0100.0137.27
4.3.90.0030.0207.27
4.3.80.0030.0307.27
4.3.70.0100.0137.27
4.3.60.0000.0237.27
4.3.50.0000.0237.27
4.3.40.0000.0337.27
4.3.30.0000.0237.27
4.3.20.0070.0237.27
4.3.10.0000.0237.27
4.3.00.0130.0207.32

preferences:
48.48 ms | 400 KiB | 5 Q