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));

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)
8.3.60.0090.00918.50
8.3.50.0070.00922.12
8.3.40.0090.00618.57
8.3.30.0110.00419.09
8.3.20.0040.00420.16
8.3.10.0040.00423.71
8.3.00.0030.00519.43
8.2.180.0140.00716.38
8.2.170.0090.00622.96
8.2.160.0110.00420.52
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00420.88
8.2.110.0040.00422.08
8.2.100.0040.00717.78
8.2.90.0030.00519.21
8.2.80.0050.00317.97
8.2.70.0000.00817.50
8.2.60.0000.00817.80
8.2.50.0040.00418.07
8.2.40.0030.00618.09
8.2.30.0050.00218.31
8.2.20.0040.00417.63
8.2.10.0000.00717.89
8.2.00.0040.00419.39
8.1.280.0150.00025.92
8.1.270.0050.00323.87
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0030.00623.77
8.1.230.0040.00719.02
8.1.220.0000.00717.74
8.1.210.0030.00518.77
8.1.200.0090.00016.99
8.1.190.0050.00317.35
8.1.180.0040.00418.10
8.1.170.0040.00418.51
8.1.160.0040.00421.98
8.1.150.0070.00018.71
8.1.140.0050.00217.36
8.1.130.0000.00717.85
8.1.120.0000.00717.33
8.1.110.0050.00217.40
8.1.100.0000.01017.30
8.1.90.0070.00017.46
8.1.80.0000.00717.39
8.1.70.0030.00317.30
8.1.60.0000.00717.52
8.1.50.0090.00017.48
8.1.40.0000.00917.55
8.1.30.0040.00417.69
8.1.20.0000.00717.67
8.1.10.0040.00417.57
8.1.00.0050.00317.42
8.0.300.0000.00718.77
8.0.290.0050.00216.63
8.0.280.0000.00718.30
8.0.270.0000.00717.22
8.0.260.0030.00517.08
8.0.250.0030.00316.82
8.0.240.0060.00316.77
8.0.230.0040.00416.91
8.0.220.0030.00316.75
8.0.210.0000.00816.73
8.0.200.0030.00316.89
8.0.190.0000.00716.93
8.0.180.0050.00316.86
8.0.170.0040.00416.88
8.0.160.0000.00816.88
8.0.150.0000.00716.86
8.0.140.0030.00316.78
8.0.130.0030.00313.24
8.0.120.0020.00516.82
8.0.110.0050.00216.77
8.0.100.0000.00716.96
8.0.90.0070.00016.67
8.0.80.0100.00616.86
8.0.70.0020.00516.79
8.0.60.0040.00416.72
8.0.50.0000.00816.71
8.0.30.0140.00817.08
8.0.20.0090.01117.40
8.0.10.0050.00216.98
8.0.00.0130.00516.99
7.4.330.0020.00215.04
7.4.320.0040.00416.36
7.4.300.0040.00416.54
7.4.290.0000.00616.60
7.4.280.0000.00816.59
7.4.270.0070.00016.66
7.4.260.0000.00716.40
7.4.250.0080.00016.59
7.4.240.0030.00416.48
7.4.230.0070.00016.64
7.4.220.0030.01716.55
7.4.210.0080.00516.52
7.4.200.0070.00016.71
7.4.160.0100.00716.68
7.4.150.0120.01217.40
7.4.140.0100.00817.86
7.4.130.0100.00616.52
7.4.120.0080.00916.54
7.4.110.0120.00616.32
7.4.100.0080.01016.36
7.4.90.0070.01016.51
7.4.80.0130.01019.39
7.4.70.0130.00316.31
7.4.60.0150.00816.55
7.4.50.0040.00416.61
7.4.40.0080.00816.58
7.4.30.0090.00616.71
7.4.00.0060.00314.66
7.3.330.0030.00313.14
7.3.320.0000.00613.08
7.3.310.0030.00316.20
7.3.300.0040.00416.23
7.3.290.0000.01416.24
7.3.280.0140.00716.31
7.3.270.0080.00817.40
7.3.260.0150.00916.58
7.3.250.0110.00616.39
7.3.240.0180.00016.52
7.3.230.0100.00616.44
7.3.210.0120.00616.52
7.3.200.0060.01619.39
7.3.190.0040.01116.38
7.3.180.0070.01016.15
7.3.170.0100.00716.37
7.3.160.0160.00016.40
7.3.120.0080.00814.73
7.2.330.0100.00716.68
7.2.320.0030.01416.62
7.2.310.0130.00316.35
7.2.300.0060.01016.71
7.2.290.0060.01016.75
7.2.60.0070.00716.62
7.2.00.0040.01219.18
7.1.200.0060.00015.48
7.1.100.0030.01218.25
7.1.70.0030.00317.12
7.1.60.0070.01819.70
7.1.50.0070.01716.59
7.1.00.0030.07722.33
7.0.200.0080.00416.73
7.0.140.0000.07322.08
7.0.60.0170.07719.80
7.0.50.0030.08317.88
7.0.40.0030.06020.13
7.0.30.0270.06020.13
7.0.20.0300.07320.25
7.0.10.0100.08720.25
7.0.00.0100.06720.30
5.6.280.0130.06721.13
5.6.210.0070.08020.47
5.6.200.0030.08318.29
5.6.190.0030.08720.42
5.6.180.0370.07020.47
5.6.170.0300.08020.52
5.6.160.0230.04020.50
5.6.150.0100.08018.17
5.6.140.0130.07018.18
5.6.130.0030.08718.17
5.6.120.0030.04021.13
5.6.110.0070.08321.05
5.6.100.0130.08721.09
5.6.90.0070.05720.88
5.6.80.0070.06020.39
5.5.350.0130.05020.32
5.5.340.0100.06717.99
5.5.330.0100.04720.29
5.5.320.0430.06320.29
5.5.310.0400.07320.34
5.5.300.0030.08718.08
5.5.290.0030.08718.02
5.5.280.0070.08320.69
5.5.270.0070.08320.95
5.5.260.0100.07720.79
5.5.250.0100.07720.69
5.5.240.0100.07720.36
5.4.450.0370.05319.42
5.4.440.0830.05719.54
5.4.430.0570.04019.57
5.4.420.0200.04319.38
5.4.410.0200.03019.29
5.4.400.0270.05718.97
5.4.390.0300.05043.92
5.4.380.0100.05718.75
5.4.370.0170.05018.61
5.4.360.0100.05718.72
5.4.350.0270.04318.67
5.4.340.0070.06018.63
5.4.320.0040.03612.50
5.4.310.0090.03512.49
5.4.300.0110.03412.50
5.4.290.0070.03912.50
5.4.280.0040.03812.39
5.4.270.0030.03912.39
5.4.260.0070.03512.39
5.4.250.0100.03812.39
5.4.240.0080.03712.39
5.4.230.0060.03712.39
5.4.220.0070.03912.39
5.4.210.0020.03912.39
5.4.200.0030.03812.39
5.4.190.0080.03512.38
5.4.180.0070.03412.38
5.4.170.0080.04412.40
5.4.160.0070.04112.39
5.4.150.0070.03912.39
5.4.140.0060.03812.07
5.4.130.0030.03812.06
5.4.120.0050.03712.01
5.4.110.0060.03412.01
5.4.100.0080.03812.01
5.4.90.0070.04312.01
5.4.80.0050.04212.02
5.4.70.0090.03112.01
5.4.60.0050.03512.01
5.4.50.0050.04212.00
5.4.40.0060.03412.00
5.4.30.0100.03512.00
5.4.20.0040.04311.99
5.4.10.0040.03511.99
5.4.00.0080.03311.48
5.3.290.0060.03912.80
5.3.280.0070.03612.71
5.3.270.0060.04012.72
5.3.260.0050.04512.71
5.3.250.0100.03612.72
5.3.240.0060.03912.72
5.3.230.0060.03612.70
5.3.220.0030.04212.68
5.3.210.0060.04112.68
5.3.200.0050.03912.68
5.3.190.0040.03912.68
5.3.180.0070.03512.67
5.3.170.0060.03612.67
5.3.160.0060.04112.68
5.3.150.0050.03712.67
5.3.140.0050.03712.66
5.3.130.0060.03812.66
5.3.120.0050.04012.66
5.3.110.0070.03712.66
5.3.100.0050.04712.13
5.3.90.0080.03912.11
5.3.80.0020.04012.09
5.3.70.0070.03512.10
5.3.60.0070.04212.08
5.3.50.0070.03912.04
5.3.40.0100.03512.04
5.3.30.0060.03511.99
5.3.20.0050.03811.77
5.3.10.0080.04411.73
5.3.00.0050.03711.72
5.2.170.0040.0359.23
5.2.160.0060.0309.22
5.2.150.0080.0289.22
5.2.140.0040.0359.22
5.2.130.0040.0339.18
5.2.120.0030.0329.18
5.2.110.0060.0279.19
5.2.100.0050.0279.18
5.2.90.0040.0289.18
5.2.80.0020.0329.18
5.2.70.0020.0389.18
5.2.60.0100.0369.13
5.2.50.0060.0309.10
5.2.40.0060.0289.07
5.2.30.0050.0319.05
5.2.20.0080.0259.04
5.2.10.0050.0288.95
5.2.00.0060.0278.81
5.1.60.0050.0238.09
5.1.50.0080.0328.09
5.1.40.0040.0258.07
5.1.30.0040.0268.42
5.1.20.0070.0288.44
5.1.10.0040.0258.17
5.1.00.0080.0278.17
5.0.50.0030.0256.64
5.0.40.0050.0196.51
5.0.30.0040.0306.32
5.0.20.0010.0216.28
5.0.10.0030.0196.26
5.0.00.0050.0356.25
4.4.90.0030.0154.78
4.4.80.0040.0134.76
4.4.70.0040.0204.75
4.4.60.0020.0164.76
4.4.50.0060.0114.77
4.4.40.0020.0254.71
4.4.30.0020.0164.76
4.4.20.0020.0164.84
4.4.10.0040.0184.85
4.4.00.0030.0324.75
4.3.110.0040.0144.67
4.3.100.0020.0164.66
4.3.90.0030.0174.63
4.3.80.0020.0254.59
4.3.70.0060.0154.63
4.3.60.0040.0134.63
4.3.50.0020.0224.63
4.3.40.0030.0234.54
4.3.30.0040.0143.30
4.3.20.0030.0153.28
4.3.10.0000.0183.24
4.3.00.0170.01743.92

preferences:
40.81 ms | 401 KiB | 5 Q