3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Singleton { private static $instance; private function __construct() { echo 'NEW', PHP_EOL; } public static function getInstance() { if (null === self::$instance) { self::$instance = new self(); } return self::$instance; } } $cl = static function() { return new self(); }; $bcl = Closure::bind($cl, null, 'Singleton'); var_dump(Singleton::getInstance()); var_dump(Singleton::getInstance()); var_dump(Singleton::getInstance()); var_dump($bcl()); var_dump($bcl());

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)
8.3.60.0150.00316.47
8.3.50.0140.00321.93
8.3.40.0060.01218.83
8.3.30.0100.00319.17
8.3.20.0040.00420.33
8.3.10.0070.00023.48
8.3.00.0000.00820.80
8.2.180.0070.00718.29
8.2.170.0100.00722.96
8.2.160.0070.00720.39
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00022.08
8.2.110.0060.00319.39
8.2.100.0060.00617.84
8.2.90.0040.00419.17
8.2.80.0040.00417.97
8.2.70.0090.00317.50
8.2.60.0040.00418.05
8.2.50.0030.00618.07
8.2.40.0040.00419.95
8.2.30.0040.00418.14
8.2.20.0040.00417.70
8.2.10.0050.00218.14
8.2.00.0040.00417.62
8.1.280.0140.00025.92
8.1.270.0080.00022.09
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0100.00020.98
8.1.230.0080.00417.77
8.1.220.0040.00417.76
8.1.210.0040.00418.77
8.1.200.0090.00017.22
8.1.190.0000.00917.35
8.1.180.0040.00418.10
8.1.170.0000.00818.63
8.1.160.0070.00022.04
8.1.150.0000.00818.65
8.1.140.0040.00417.38
8.1.130.0000.00817.85
8.1.120.0000.00817.44
8.1.110.0040.00417.46
8.1.100.0000.00717.51
8.1.90.0050.00317.48
8.1.80.0000.00717.46
8.1.70.0080.00017.44
8.1.60.0000.00817.55
8.1.50.0000.00917.50
8.1.40.0040.00417.45
8.1.30.0030.00517.65
8.1.20.0040.00417.66
8.1.10.0070.00017.49
8.1.00.0030.00517.41
8.0.300.0040.00418.77
8.0.290.0070.00017.05
8.0.280.0000.00718.50
8.0.270.0030.00317.20
8.0.260.0070.00017.16
8.0.250.0000.00716.95
8.0.240.0000.00716.95
8.0.230.0030.00316.91
8.0.220.0000.00716.87
8.0.210.0000.00716.80
8.0.200.0000.00716.96
8.0.190.0000.00716.95
8.0.180.0040.00416.88
8.0.170.0040.00416.84
8.0.160.0000.00716.81
8.0.150.0000.00716.83
8.0.140.0040.00416.90
8.0.130.0000.00613.34
8.0.120.0050.00316.87
8.0.110.0050.00316.82
8.0.100.0050.00317.02
8.0.90.0050.00316.94
8.0.80.0120.00916.88
8.0.70.0000.00716.87
8.0.60.0070.00016.77
8.0.50.0030.00316.92
8.0.30.0140.00416.89
8.0.20.0120.00617.40
8.0.10.0040.00416.83
8.0.00.0140.00916.89
7.4.330.0050.00015.12
7.4.320.0030.00316.51
7.4.300.0030.00316.63
7.4.290.0030.00316.61
7.4.280.0000.00716.56
7.4.270.0030.00316.51
7.4.260.0000.00716.61
7.4.250.0040.00416.47
7.4.240.0050.00216.58
7.4.230.0070.00016.44
7.4.220.0090.00916.47
7.4.210.0090.00716.59
7.4.200.0050.00216.36
7.4.190.0030.00316.79
7.4.160.0070.01416.63
7.4.150.0110.00617.40
7.4.140.0060.01417.86
7.4.130.0080.00816.45
7.4.120.0150.00216.52
7.4.110.0150.00316.41
7.4.100.0110.00716.48
7.4.90.0140.00416.50
7.4.80.0090.00919.39
7.4.70.0180.00016.52
7.4.60.0140.00416.52
7.4.50.0060.00316.31
7.4.40.0110.00516.44
7.4.30.0060.01016.36
7.4.00.0060.01114.81
7.3.330.0020.00213.13
7.3.320.0050.00013.07
7.3.310.0040.00416.42
7.3.300.0000.00616.30
7.3.290.0060.01316.33
7.3.280.0070.01116.30
7.3.270.0040.01517.40
7.3.260.0110.00616.28
7.3.250.0090.00816.42
7.3.240.0120.00616.26
7.3.230.0110.00616.53
7.3.210.0110.00616.33
7.3.200.0060.01619.39
7.3.190.0100.00716.45
7.3.180.0030.01616.49
7.3.170.0130.00316.43
7.3.160.0060.01216.33
7.3.120.0080.00914.91
7.3.110.0110.00014.95
7.3.100.0120.00314.82
7.3.90.0070.01314.95
7.3.80.0120.00414.81
7.3.70.0060.00914.61
7.3.60.0100.00714.86
7.3.50.0000.01114.58
7.3.40.0030.01014.48
7.3.30.0060.00614.65
7.3.20.0060.00316.75
7.3.10.0060.00616.64
7.3.00.0060.00916.54
7.2.330.0070.01016.62
7.2.320.0080.01516.88
7.2.310.0140.01016.80
7.2.300.0140.00316.57
7.2.290.0150.00316.57
7.2.250.0140.00715.35
7.2.240.0140.00715.25
7.2.230.0030.01615.25
7.2.220.0100.01014.80
7.2.210.0060.00315.04
7.2.200.0000.01214.97
7.2.190.0110.00015.04
7.2.180.0040.01114.87
7.2.170.0060.00614.85
7.2.60.0030.01316.98
7.2.50.0110.00417.11
7.1.330.0000.01415.88
7.1.320.0000.01415.77
7.1.310.0030.01115.87
7.1.300.0030.01315.38
7.1.290.0000.01315.84
7.1.280.0090.00615.84
7.1.270.0040.01215.65
7.1.260.0070.00715.84
7.1.200.0100.00315.54
7.1.70.0110.00417.12
7.1.60.0070.01719.46
7.1.50.0130.01016.63
7.1.00.0070.06322.43
7.0.200.0090.00016.82
7.0.140.0070.07022.05
7.0.60.0030.06319.83
7.0.50.0070.05317.79
7.0.40.0170.05720.09
7.0.30.0270.08020.07
7.0.20.0400.06720.20
7.0.10.0030.05320.09
7.0.00.0030.04320.28
5.6.280.0000.10320.77
5.6.210.0030.08320.67
5.6.200.0130.04718.27
5.6.190.0100.05320.52
5.6.180.0130.05020.61
5.6.170.0300.07720.49
5.6.160.0070.08720.44
5.6.150.0100.05018.18
5.6.140.0130.06718.14
5.6.130.0000.09318.16
5.6.120.0100.08021.04
5.6.110.0100.03721.01
5.6.100.0130.07721.12
5.6.90.0070.08321.04
5.6.80.0100.05720.41
5.5.350.3430.04320.42
5.5.340.0070.07018.07
5.5.330.0000.09320.23
5.5.320.0230.05320.36
5.5.310.0370.08020.27
5.5.300.0030.04717.95
5.5.290.0070.03717.93
5.5.280.0070.07720.80
5.5.270.0070.06020.84
5.5.260.0100.08020.87
5.5.250.0170.07720.61
5.5.240.0000.03720.29
5.4.450.0270.06019.11
5.4.440.0370.06019.26
5.4.430.0170.05319.31
5.4.420.0130.06019.23
5.4.410.0170.04719.10
5.4.400.0170.05019.11
5.4.390.0170.05319.22
5.4.380.0170.05318.71
5.4.370.0170.05018.59
5.4.360.0100.05318.72
5.4.350.0100.05718.80
5.4.340.0230.06318.59
5.4.320.0060.03712.51
5.4.310.0020.04212.51
5.4.300.0040.03812.51
5.4.290.0180.06612.50
5.4.280.0100.06812.40
5.4.270.0190.05812.39
5.4.260.0100.04512.39
5.4.250.0090.04012.40
5.4.240.0080.05412.39
5.4.230.0120.04412.39
5.4.220.0100.04012.39
5.4.210.0180.07512.39
5.4.200.0100.04712.39
5.4.190.0060.03912.39
5.4.180.0070.05812.38
5.4.170.0220.08412.40
5.4.160.0370.10312.39
5.4.150.0140.05412.39
5.4.140.0110.05912.07
5.4.130.0170.04912.06
5.4.120.0110.05712.02
5.4.110.0180.07912.01
5.4.100.0110.06012.01
5.4.90.0130.04412.02
5.4.80.0180.06012.02
5.4.70.0160.07112.02
5.4.60.0130.05712.01
5.4.50.0190.06012.02
5.4.40.0070.05112.00
5.4.30.0220.09012.00
5.4.20.0100.06312.00
5.4.10.0120.07412.00
5.4.00.0170.05511.48
5.3.290.0050.04012.80
5.3.280.0160.06512.71
5.3.270.0110.08712.73
5.3.260.0120.06912.72
5.3.250.0090.04212.72
5.3.240.0100.04312.72
5.3.230.0050.04612.71
5.3.220.0120.04012.68
5.3.210.0100.04412.68
5.3.200.0110.05512.68
5.3.190.0150.05712.68
5.3.180.0280.08512.68
5.3.170.0100.07712.66
5.3.160.0210.08312.67
5.3.150.0090.05312.67
5.3.140.0110.04212.66
5.3.130.0090.05612.65
5.3.120.0190.07812.66
5.3.110.0160.06712.66
5.3.100.0160.05912.13
5.3.90.0150.07512.11
5.3.80.0120.06112.09
5.3.70.0230.09012.10
5.3.60.0240.05512.08
5.3.50.0150.06812.03
5.3.40.0200.08512.03
5.3.30.0180.11711.99
5.3.20.0140.03911.77
5.3.10.0120.05511.74
5.3.00.0120.05311.72
5.2.170.0080.0409.22
5.2.160.0060.0559.22
5.2.150.0160.0569.23
5.2.140.0050.0459.22
5.2.130.0080.0309.18
5.2.120.0080.0499.18
5.2.110.0080.0429.19
5.2.100.0110.0439.19
5.2.90.0060.0329.18
5.2.80.0040.0369.18
5.2.70.0070.0339.18
5.2.60.0070.0309.14
5.2.50.0060.0329.10
5.2.40.0050.0309.08
5.2.30.0030.0339.05
5.2.20.0070.0299.04
5.2.10.0080.0398.95
5.2.00.0050.0368.82
5.1.60.0050.0288.09
5.1.50.0080.0228.09
5.1.40.0050.0258.07
5.1.30.0060.0258.42
5.1.20.0040.0308.45
5.1.10.0020.0348.16
5.1.00.0030.0318.16
5.0.50.0020.0226.65
5.0.40.0120.0356.50
5.0.30.0040.0376.32
5.0.20.0050.0226.29
5.0.10.0040.0236.27
5.0.00.0050.0346.26
4.4.90.0020.0404.78
4.4.80.0020.0384.76
4.4.70.0020.0324.76
4.4.60.0040.0254.76
4.4.50.0070.0474.77
4.4.40.0130.0924.71
4.4.30.0060.0234.76
4.4.20.0040.0274.85
4.4.10.0080.0294.85
4.4.00.0050.0604.76
4.3.110.0100.0254.67
4.3.100.0110.0454.66
4.3.90.0060.0404.64
4.3.80.0080.0614.58
4.3.70.0060.0284.63
4.3.60.0040.0254.63
4.3.50.0060.0234.63
4.3.40.0110.0484.54
4.3.30.0030.0233.30
4.3.20.0030.0223.28
4.3.10.0020.0233.23
4.3.00.0100.0207.55

preferences:
39.05 ms | 401 KiB | 5 Q