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; } private function __invoke() {} } $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)
8.3.70.0120.00616.75
8.3.60.0070.00718.68
8.3.50.0120.00821.99
8.3.40.0130.01018.84
8.3.30.0120.00420.34
8.3.20.0170.00320.14
8.3.10.0050.00321.84
8.3.00.0040.00422.46
8.2.180.0140.00425.92
8.2.170.0110.00319.14
8.2.160.0100.01022.96
8.2.150.0140.00725.66
8.2.140.0080.00024.66
8.2.130.0040.01126.16
8.2.120.0000.00819.43
8.2.110.0100.01320.93
8.2.100.0090.00317.84
8.2.90.0080.00019.13
8.2.80.0080.00017.97
8.2.70.0060.00317.50
8.2.60.0040.00417.93
8.2.50.0060.00618.10
8.2.40.0070.00317.96
8.2.30.0000.00817.94
8.2.20.0040.00417.55
8.2.10.0030.00517.75
8.2.00.0030.00517.68
8.1.280.0170.00025.92
8.1.270.0080.00024.66
8.1.260.0080.00026.35
8.1.250.0110.00428.09
8.1.240.0090.00022.66
8.1.230.0000.01117.83
8.1.220.0030.00617.74
8.1.210.0030.00518.77
8.1.200.0090.00017.36
8.1.190.0000.00817.35
8.1.180.0060.00318.10
8.1.170.0060.00318.44
8.1.160.0070.00022.07
8.1.150.0070.00018.56
8.1.140.0050.00217.46
8.1.130.0030.00517.95
8.1.120.0030.00317.41
8.1.110.0070.00017.46
8.1.100.0000.00717.36
8.1.90.0000.00817.43
8.1.80.0050.00217.38
8.1.70.0000.00717.38
8.1.60.0080.00017.65
8.1.50.0030.00617.42
8.1.40.0080.00017.57
8.1.30.0000.00817.66
8.1.20.0050.00317.73
8.1.10.0040.00417.61
8.1.00.0040.00417.57
8.0.300.0070.00018.77
8.0.290.0060.00316.88
8.0.280.0000.00718.52
8.0.270.0000.00817.19
8.0.260.0000.00616.81
8.0.250.0030.00317.11
8.0.240.0060.00316.93
8.0.230.0000.00716.92
8.0.220.0030.00317.01
8.0.210.0050.00216.99
8.0.200.0000.00617.02
8.0.190.0040.00416.94
8.0.180.0040.00416.98
8.0.170.0040.00416.96
8.0.160.0000.00716.95
8.0.150.0000.00916.80
8.0.140.0040.00416.96
8.0.130.0000.00613.33
8.0.120.0040.00416.99
8.0.110.0040.00416.85
8.0.100.0050.00316.98
8.0.90.0040.00416.95
8.0.80.0120.00416.86
8.0.70.0000.00716.93
8.0.60.0040.00417.03
8.0.50.0050.00216.83
8.0.30.0120.00717.05
8.0.20.0120.00617.40
8.0.10.0040.00417.15
8.0.00.0130.00716.89
7.4.330.0060.00015.00
7.4.320.0000.00616.50
7.4.300.0080.00016.61
7.4.290.0070.00016.67
7.4.280.0080.00016.36
7.4.270.0070.00016.51
7.4.260.0060.00316.50
7.4.250.0070.00016.62
7.4.240.0050.00216.57
7.4.230.0030.00316.42
7.4.220.0100.00716.70
7.4.210.0070.00716.60
7.4.200.0030.00316.38
7.4.190.0000.00716.68
7.4.160.0070.01316.50
7.4.150.0080.00817.40
7.4.140.0120.00817.86
7.4.130.0080.00916.62
7.4.120.0090.01016.58
7.4.110.0100.00716.43
7.4.100.0070.01016.41
7.4.90.0150.00316.70
7.4.80.0070.01119.39
7.4.70.0030.01316.56
7.4.60.0090.00716.57
7.4.50.0030.00616.79
7.4.40.0040.01422.77
7.4.30.0130.00316.59
7.4.00.0070.00715.26
7.3.330.0050.00013.23
7.3.320.0030.00313.45
7.3.310.0000.00716.42
7.3.300.0000.00816.36
7.3.290.0100.00716.39
7.3.280.0080.00616.36
7.3.270.0120.00617.40
7.3.260.0090.00916.37
7.3.250.0180.00016.37
7.3.240.0160.00616.34
7.3.230.0140.00316.50
7.3.210.0090.00916.38
7.3.200.0030.01319.39
7.3.190.0090.00916.29
7.3.180.0080.00716.44
7.3.170.0060.00916.44
7.3.160.0120.00816.46
7.3.120.0070.00714.52
7.2.330.0060.01316.50
7.2.320.0120.01216.81
7.2.310.0030.01516.73
7.2.300.0090.01216.39
7.2.290.0130.01016.49
7.2.60.0060.00916.84
7.2.00.0070.00719.54
7.1.200.0040.00715.80
7.1.100.0100.00317.95
7.1.70.0090.00017.23
7.1.60.0040.00817.12
7.1.50.0160.00816.90
7.1.00.0070.04722.45
7.0.200.0060.01216.61
7.0.140.0000.07322.21
7.0.60.0000.04719.92
7.0.50.0030.06017.83
7.0.40.0100.08320.11
7.0.30.0230.06020.20
7.0.20.0270.07720.21
7.0.10.0130.04720.07
7.0.00.0030.08320.22
5.6.280.0070.07020.88
5.6.210.0070.06320.60
5.6.200.0100.04318.29
5.6.190.0170.04320.76
5.6.180.0270.07720.48
5.6.170.0370.06720.55
5.6.160.0100.08020.52
5.6.150.0070.05318.25
5.6.140.0130.03318.19
5.6.130.0070.07318.25
5.6.120.0030.04720.90
5.6.110.0030.08320.90
5.6.100.0070.06320.97
5.6.90.0070.05720.98
5.6.80.0130.06020.52
5.6.70.0330.07020.55
5.5.350.0130.07320.41
5.5.340.0070.06018.02
5.5.330.0130.08020.27
5.5.320.0330.07020.34
5.5.310.0300.06720.34
5.5.300.0030.05318.05
5.5.290.0130.06317.95
5.5.280.0000.09320.99
5.5.270.0100.08320.88
5.5.260.0000.04720.62
5.5.250.0130.07720.79
5.5.240.0030.08020.16
5.4.450.0000.06719.34
5.4.440.1030.05019.55
5.4.430.0900.06019.18
5.4.420.0130.05319.63
5.4.410.0930.05319.44
5.4.400.0400.05018.51
5.4.390.0500.05318.79
5.4.380.0170.05718.62
5.4.370.0070.06018.57
5.4.360.0130.05018.75
5.4.350.0070.04312.03
5.4.340.0120.04312.02
5.4.320.0060.04912.51
5.4.310.0070.04712.50
5.4.300.0050.04012.50
5.4.290.0020.04012.50
5.4.280.0060.03612.39
5.4.270.0080.03612.40
5.4.260.0060.03712.39
5.4.250.0080.03512.40
5.4.240.0030.05718.93
5.4.230.0100.07318.94
5.4.220.0170.06718.90
5.4.210.0030.05318.83
5.4.200.0030.06018.91
5.4.190.0070.05318.89
5.4.180.0070.05718.79
5.4.170.0130.06018.83
5.4.160.0170.07018.92
5.4.150.0070.05319.04
5.4.140.0070.05016.56
5.4.130.0100.04716.53
5.4.120.0130.04316.54
5.4.110.0130.04716.41
5.4.100.0100.05316.41
5.4.90.0130.06316.42
5.4.80.0130.04016.37
5.4.70.0070.05016.38
5.4.60.0000.05316.49
5.4.50.0100.04316.52
5.4.40.0170.04016.67
5.4.30.0070.05016.47
5.4.20.0100.04716.59
5.4.10.0130.05016.35
5.4.00.0270.03316.01
5.3.290.0110.03712.80
5.3.280.0030.07314.59
5.3.270.0030.06014.58
5.3.260.0030.06014.60
5.3.250.0100.06714.52
5.3.240.0000.05714.70
5.3.230.0070.06014.63
5.3.220.0030.05714.73
5.3.210.0000.05714.76
5.3.200.0130.05314.41
5.3.190.0070.05314.54
5.3.180.0070.04714.57
5.3.170.0030.05314.66
5.3.160.0070.04714.48
5.3.150.0000.05714.71
5.3.140.0100.04714.65
5.3.130.0030.05714.70
5.3.120.0030.05714.38
5.3.110.0000.06014.64
5.3.100.0000.06014.06
5.3.90.0070.05014.20
5.3.80.0070.06013.93
5.3.70.0030.06713.86
5.3.60.0100.04314.08
5.3.50.0070.05014.14
5.3.40.0030.05713.87
5.3.30.0070.04713.75
5.3.20.0000.05713.61
5.3.10.0030.05013.62
5.3.00.0030.05313.63
5.2.170.0100.03711.23
5.2.160.0130.04711.33
5.2.150.0070.04011.24
5.2.140.0000.04710.98
5.2.130.0130.03011.10
5.2.120.0030.04010.94
5.2.110.0030.05311.09
5.2.100.0030.04011.19
5.2.90.0100.03711.08
5.2.80.0000.05011.10
5.2.70.0030.04311.21
5.2.60.0070.03710.96
5.2.50.0030.04011.09
5.2.40.0070.04310.97
5.2.30.0030.04310.94
5.2.20.0070.03710.87
5.2.10.0130.03010.93
5.2.00.0070.03710.69
5.1.60.0000.0339.84
5.1.50.0070.03710.07
5.1.40.0070.0339.92
5.1.30.0030.04010.43
5.1.20.0070.03710.58
5.1.10.0070.0439.99
5.1.00.0130.03710.31
5.0.50.0070.0308.80
5.0.40.0030.0278.42
5.0.30.0000.0508.15
5.0.20.0000.0338.21
5.0.10.0100.0208.24
5.0.00.0030.0408.12
4.4.90.0000.0236.98
4.4.80.0030.0206.98
4.4.70.0030.0206.98
4.4.60.0030.0176.98
4.4.50.0030.0206.98
4.4.40.0070.0306.98
4.4.30.0000.0236.98
4.4.20.0030.0306.98
4.4.10.0030.0206.98
4.4.00.0030.0306.98
4.3.110.0000.0236.98
4.3.100.0000.0206.98
4.3.90.0000.0206.98
4.3.80.0170.0176.98
4.3.70.0000.0236.98
4.3.60.0030.0176.98
4.3.50.0000.0236.98
4.3.40.0000.0336.98
4.3.30.0070.0236.98
4.3.20.0100.0236.98
4.3.10.0030.0206.98
4.3.00.0000.0236.84

preferences:
45.82 ms | 401 KiB | 5 Q