3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Singleton{ private static $instance; private function __construct(){} public static function instance() { if (is_null(self::$instance)){ self::$instance = new static; } return self::$instance; } } $obj1 = Singleton::instance(); $obj2 = Singleton::instance(); var_dump(spl_object_hash($obj1), spl_object_hash($obj2)); $closure = function(){ return clone $this->instance; }; $cloner = $closure->bindTo($obj1, 'private'); $obj3 = $cloner(); var_dump(spl_object_hash($obj3));

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)
8.3.60.0140.00716.73
8.3.50.0070.01121.99
8.3.40.0060.01318.95
8.3.30.0140.00319.13
8.3.20.0000.00720.34
8.3.10.0020.00523.66
8.3.00.0030.00519.80
8.2.180.0080.01516.75
8.2.170.0070.00722.96
8.2.160.0130.00020.39
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0060.00321.04
8.2.110.0040.00422.05
8.2.100.0040.00717.93
8.2.90.0030.00519.26
8.2.80.0000.00817.97
8.2.70.0000.00817.62
8.2.60.0000.00917.80
8.2.50.0080.00318.07
8.2.40.0040.00418.34
8.2.30.0000.00718.25
8.2.20.0040.00417.76
8.2.10.0000.00818.18
8.2.00.0030.00517.77
8.1.280.0060.00925.92
8.1.270.0030.00623.92
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0090.00023.64
8.1.230.0040.00819.11
8.1.220.0080.00017.74
8.1.210.0030.00618.77
8.1.200.0030.00717.35
8.1.190.0040.00417.23
8.1.180.0030.00518.10
8.1.170.0030.00518.59
8.1.160.0040.00422.06
8.1.150.0070.00018.82
8.1.140.0070.00017.45
8.1.130.0000.00717.78
8.1.120.0000.00717.53
8.1.110.0040.00417.32
8.1.100.0040.00417.41
8.1.90.0000.00717.35
8.1.80.0000.00717.51
8.1.70.0000.00717.44
8.1.60.0040.00417.65
8.1.50.0060.00317.43
8.1.40.0090.00017.44
8.1.30.0030.00617.48
8.1.20.0030.00517.70
8.1.10.0000.00717.57
8.1.00.0000.00817.41
8.0.300.0020.00518.77
8.0.290.0040.00416.63
8.0.280.0030.00318.41
8.0.270.0000.00717.21
8.0.260.0000.00617.21
8.0.250.0000.00717.01
8.0.240.0030.00317.01
8.0.230.0070.00017.01
8.0.220.0030.00316.77
8.0.210.0000.00716.84
8.0.200.0030.00317.05
8.0.190.0040.00416.90
8.0.180.0040.00416.98
8.0.170.0000.00716.88
8.0.160.0040.00416.96
8.0.150.0030.00416.95
8.0.140.0040.00417.02
8.0.130.0030.00313.37
8.0.120.0050.00316.95
8.0.110.0040.00416.87
8.0.100.0030.00516.98
8.0.90.0070.00016.88
8.0.80.0070.01416.86
8.0.70.0040.00416.95
8.0.60.0000.00816.96
8.0.50.0050.00316.84
8.0.30.0170.00417.06
8.0.20.0120.00817.40
8.0.10.0070.00017.01
8.0.00.0090.01016.79
7.4.330.0050.00015.20
7.4.320.0000.00616.48
7.4.300.0030.00316.54
7.4.290.0030.00316.66
7.4.280.0030.00616.61
7.4.270.0000.00716.63
7.4.260.0050.00316.57
7.4.250.0080.00016.43
7.4.240.0020.00616.49
7.4.230.0070.00016.66
7.4.220.0180.00516.59
7.4.210.0140.00016.73
7.4.200.0050.00316.55
7.4.160.0090.00616.69
7.4.150.0110.00717.40
7.4.140.0120.00517.86
7.4.130.0060.01316.47
7.4.120.0130.00416.52
7.4.110.0070.01016.48
7.4.100.0070.01016.61
7.4.90.0070.01016.62
7.4.80.0140.00519.39
7.4.70.0090.00816.52
7.4.60.0080.00816.71
7.4.50.0000.00516.72
7.4.40.0060.00916.36
7.4.30.0130.00316.45
7.4.00.0090.00714.93
7.3.330.0000.00613.45
7.3.320.0060.00013.21
7.3.310.0070.00016.28
7.3.300.0000.00816.24
7.3.290.0070.00716.38
7.3.280.0120.00616.36
7.3.270.0080.00817.40
7.3.260.0090.00916.62
7.3.250.0100.01016.44
7.3.240.0100.00716.62
7.3.230.0120.00616.40
7.3.210.0000.01816.40
7.3.200.0080.00819.39
7.3.190.0120.00916.37
7.3.180.0080.01016.65
7.3.170.0000.01516.57
7.3.160.0110.01116.26
7.3.120.0060.01014.99
7.3.110.0110.00514.73
7.3.100.0020.01414.82
7.3.90.0070.00714.94
7.3.80.0110.00514.97
7.3.70.0080.00714.75
7.3.60.0050.01014.75
7.3.50.0060.00914.82
7.3.40.0050.01014.71
7.3.30.0020.01314.90
7.3.20.0060.00516.67
7.3.10.0060.00716.70
7.3.00.0090.00516.72
7.2.330.0150.00916.68
7.2.320.0040.01516.71
7.2.310.0140.00316.68
7.2.300.0040.01316.64
7.2.290.0060.00916.41
7.2.250.0060.01014.97
7.2.240.0070.01315.22
7.2.230.0070.00714.97
7.2.220.0070.00515.03
7.2.210.0040.00915.26
7.2.200.0070.00815.01
7.2.190.0050.01215.09
7.2.180.0050.01014.98
7.2.170.0080.00715.11
7.2.60.0120.00316.71
7.2.00.0040.01419.39
7.1.330.0060.00815.80
7.1.320.0040.00815.86
7.1.310.0070.00715.79
7.1.300.0070.00915.86
7.1.290.0050.00815.54
7.1.280.0070.00915.65
7.1.270.0120.00315.64
7.1.260.0090.00415.61
7.1.200.0070.00015.66
7.1.70.0060.00317.17
7.1.60.0000.01116.91
7.1.50.0090.01217.02
7.1.00.0000.08022.46
7.0.200.0070.01016.85
7.0.140.0070.07022.08
7.0.60.0130.05319.79
7.0.50.0070.04017.89
7.0.40.0070.05720.18
7.0.30.0270.05320.06
7.0.20.0270.08320.18
7.0.10.0230.08320.04
7.0.00.0070.08320.13
5.6.280.0130.06021.14
5.6.210.0130.07720.51
5.6.200.0070.04318.16
5.6.190.0000.06020.68
5.6.180.0070.08020.40
5.6.170.0330.06720.51
5.6.160.0100.07320.55
5.6.150.0130.07318.16
5.6.140.0070.04318.16
5.6.130.0130.06718.23
5.6.120.0070.06321.15
5.6.110.0030.04321.13
5.6.100.0070.07320.98
5.6.90.0100.03321.09
5.6.80.0030.04320.57
5.6.70.3270.03720.37
5.5.350.0070.07020.53
5.5.340.0100.08017.94
5.5.330.0070.07020.40
5.5.320.0470.07720.25
5.5.310.0230.06720.51
5.5.300.0100.07717.96
5.5.290.0100.05717.94
5.5.280.0170.07020.86
5.5.270.0130.05320.86
5.5.260.0070.09320.80
5.5.250.0230.07020.55
5.5.240.0070.08020.15
5.4.450.0300.04719.64
5.4.440.0230.04019.49
5.4.430.0370.04319.27
5.4.420.0570.03719.32
5.4.410.0370.03719.32
5.4.400.0500.03719.23
5.4.390.0430.02318.88
5.4.380.0070.07018.76
5.4.370.0100.05318.68
5.4.360.0170.05318.61
5.4.350.0230.05018.74
5.4.340.0230.04318.53
5.4.320.0060.03612.51
5.4.310.0090.03412.51
5.4.300.0050.03812.51
5.4.290.0060.04012.50
5.4.280.0100.03312.40
5.4.270.0060.03612.40
5.4.260.0040.04012.41
5.4.250.0050.03812.40
5.4.240.0070.04012.41
5.4.230.0070.03612.39
5.4.220.0050.03712.39
5.4.210.0050.03712.40
5.4.200.0050.04512.39
5.4.190.0060.03512.39
5.4.180.0060.03612.39
5.4.170.0100.04012.40
5.4.160.0080.03912.40
5.4.150.0060.04012.39
5.4.140.0040.03912.07
5.4.130.0050.03612.07
5.4.120.0060.03412.02
5.4.110.0060.03612.02
5.4.100.0060.03412.02
5.4.90.0070.03612.02
5.4.80.0070.03612.02
5.4.70.0050.03512.02
5.4.60.0020.03912.02
5.4.50.0030.03812.02
5.4.40.0070.03412.00
5.4.30.0040.03712.00
5.4.20.0060.04012.00
5.4.10.0100.03512.00
5.4.00.0070.04011.50
5.3.290.0050.04012.80
5.3.280.0070.04212.71
5.3.270.0070.03912.72
5.3.260.0100.03412.72
5.3.250.0050.03912.72
5.3.240.0070.04312.72
5.3.230.0070.04012.70
5.3.220.0080.04412.68
5.3.210.0040.04112.68
5.3.200.0090.03312.68
5.3.190.0070.03812.68
5.3.180.0060.03512.68
5.3.170.0070.03612.67
5.3.160.0060.03412.68
5.3.150.0060.03612.68
5.3.140.0040.03812.66
5.3.130.0090.03412.66
5.3.120.0060.03712.66
5.3.110.0070.03812.65
5.3.100.0060.03512.14
5.3.90.0080.03912.11
5.3.80.0090.03612.10
5.3.70.0070.03812.10
5.3.60.0040.03812.08
5.3.50.0100.03512.04
5.3.40.0080.03712.04
5.3.30.0080.03412.00
5.3.20.0080.03211.79
5.3.10.0050.03411.73
5.3.00.0050.04011.73
5.2.170.0030.0329.23
5.2.160.0060.0279.22
5.2.150.0050.0299.23
5.2.140.0050.0399.22
5.2.130.0040.0299.18
5.2.120.0030.0369.18
5.2.110.0050.0369.19
5.2.100.0030.0329.19
5.2.90.0060.0369.18
5.2.80.0040.0309.18
5.2.70.0030.0369.18
5.2.60.0040.0319.13
5.2.50.0070.0349.10
5.2.40.0010.0329.08
5.2.30.0090.0249.05
5.2.20.0070.0259.04
5.2.10.0060.0288.95
5.2.00.0070.0288.81
5.1.60.0030.0248.09
5.1.50.0020.0278.09
5.1.40.0050.0238.07
5.1.30.0100.0298.43
5.1.20.0070.0298.45
5.1.10.0030.0348.17
5.1.00.0050.0248.17
5.0.50.0020.0216.64
5.0.40.0040.0246.50
5.0.30.0030.0316.32
5.0.20.0010.0226.28
5.0.10.0030.0276.26
5.0.00.0020.0316.26
4.4.90.0010.0174.78
4.4.80.0020.0164.76
4.4.70.0060.0144.76
4.4.60.0060.0134.76
4.4.50.0050.0224.77
4.4.40.0030.0364.71
4.4.30.0010.0174.76
4.4.20.0040.0144.84
4.4.10.0010.0174.85
4.4.00.0040.0234.76
4.3.110.0020.0174.67
4.3.100.0030.0154.66
4.3.90.0020.0174.63
4.3.80.0030.0234.58
4.3.70.0040.0134.63
4.3.60.0010.0164.63
4.3.50.0020.0164.63
4.3.40.0030.0244.54
4.3.30.0030.0153.30
4.3.20.0030.0153.28
4.3.10.0010.0163.23
4.3.00.0070.01743.92

preferences:
36.12 ms | 401 KiB | 5 Q