3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Singleton{ private $instance; private function __construct(){} public static function instance() { if (is_null($this->instance)){ $this->instance = new static; } return $this->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)
8.3.60.0100.00616.50
8.3.50.0100.00521.92
8.3.40.0060.01018.70
8.3.30.0040.01118.89
8.3.20.0070.00020.29
8.3.10.0030.00523.66
8.3.00.0040.00419.68
8.2.180.0110.01116.75
8.2.170.0100.00722.96
8.2.160.0030.01020.35
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0050.00321.04
8.2.110.0060.00322.27
8.2.100.0110.00017.97
8.2.90.0050.00319.05
8.2.80.0050.00317.97
8.2.70.0040.00417.50
8.2.60.0040.00417.93
8.2.50.0100.00018.07
8.2.40.0080.00018.21
8.2.30.0000.00718.11
8.2.20.0050.00317.75
8.2.10.0040.00417.88
8.2.00.0000.00819.40
8.1.280.0070.00725.92
8.1.270.0040.00423.99
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0060.00324.02
8.1.230.0110.00019.04
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0000.00817.22
8.1.190.0060.00317.12
8.1.180.0040.00418.10
8.1.170.0060.00318.59
8.1.160.0000.00722.06
8.1.150.0050.00318.80
8.1.140.0060.00317.20
8.1.130.0000.00717.72
8.1.120.0050.00317.33
8.1.110.0000.00717.36
8.1.100.0070.00017.33
8.1.90.0040.00417.33
8.1.80.0070.00017.39
8.1.70.0040.00417.18
8.1.60.0030.00517.57
8.1.50.0040.00417.37
8.1.40.0050.00217.51
8.1.30.0030.00517.54
8.1.20.0080.00017.54
8.1.10.0000.00717.40
8.1.00.0050.00217.43
8.0.300.0060.00318.77
8.0.290.0040.00416.59
8.0.280.0080.00018.34
8.0.270.0040.00417.11
8.0.260.0000.00617.07
8.0.250.0000.00716.87
8.0.240.0040.00416.88
8.0.230.0030.00316.91
8.0.220.0030.00516.87
8.0.210.0000.00716.90
8.0.200.0030.00316.95
8.0.190.0040.00416.83
8.0.180.0000.00716.84
8.0.170.0040.00416.96
8.0.160.0000.00716.84
8.0.150.0030.00516.91
8.0.140.0030.00616.76
8.0.130.0030.00313.28
8.0.120.0040.00416.77
8.0.110.0000.00816.86
8.0.100.0040.00417.01
8.0.90.0040.00416.93
8.0.80.0030.01216.77
8.0.70.0020.00516.89
8.0.60.0030.00516.94
8.0.50.0030.00416.77
8.0.30.0150.00616.79
8.0.20.0080.01517.40
8.0.10.0000.00717.01
8.0.00.0050.01316.83
7.4.330.0020.00215.00
7.4.320.0060.00016.32
7.4.300.0000.00716.35
7.4.290.0030.00316.51
7.4.280.0040.00416.45
7.4.270.0000.00816.54
7.4.260.0000.00916.52
7.4.250.0070.00016.47
7.4.240.0040.00316.43
7.4.230.0070.00016.40
7.4.220.0100.01316.66
7.4.210.0080.00616.33
7.4.200.0070.00016.48
7.4.160.0080.00816.46
7.4.150.0150.00617.40
7.4.140.0030.01517.86
7.4.130.0110.00516.45
7.4.120.0070.01016.54
7.4.110.0060.01116.63
7.4.100.0120.00616.49
7.4.90.0120.00616.49
7.4.80.0080.00819.39
7.4.70.0120.00616.46
7.4.60.0040.01216.49
7.4.50.0030.00716.52
7.4.40.0110.00416.36
7.4.30.0090.00616.50
7.4.00.0040.00714.82
7.3.330.0030.00313.41
7.3.320.0070.00013.38
7.3.310.0030.00316.37
7.3.300.0000.00716.25
7.3.290.0070.00716.30
7.3.280.0080.01016.40
7.3.270.0090.00917.40
7.3.260.0030.01416.38
7.3.250.0040.01516.39
7.3.240.0000.02416.30
7.3.230.0080.00816.65
7.3.210.0110.00616.32
7.3.200.0150.00019.39
7.3.190.0090.00916.55
7.3.180.0120.00316.32
7.3.170.0130.00316.54
7.3.160.0100.00616.26
7.3.120.0080.00814.76
7.2.330.0130.00716.40
7.2.320.0120.00916.61
7.2.310.0130.00316.38
7.2.300.0030.01316.34
7.2.290.0030.01316.70
7.2.60.0040.01116.65
7.2.00.0070.00419.31
7.1.200.0030.00615.55
7.1.100.0030.01017.62
7.1.70.0000.00717.00
7.1.60.0060.01819.70
7.1.50.0090.01216.75
7.1.00.0000.09022.41
7.0.200.0130.00016.48
7.0.140.0000.07722.00
7.0.60.0070.08319.86
7.0.50.0100.07717.87
7.0.40.0030.09020.22
7.0.30.0170.04720.12
7.0.20.0200.05020.06
7.0.10.0330.07720.20
7.0.00.0030.04020.29
5.6.280.0070.09020.79
5.6.210.0170.06320.73
5.6.200.0070.08018.12
5.6.190.0100.08720.33
5.6.180.0070.04320.67
5.6.170.0370.05320.58
5.6.160.0000.04320.34
5.6.150.0030.07018.19
5.6.140.0070.03718.15
5.6.130.0000.08018.24
5.6.120.0030.05320.99
5.6.110.0070.08320.89
5.6.100.0000.07720.96
5.6.90.0000.04321.13
5.6.80.0030.03720.40
5.6.70.0270.04720.36
5.5.350.0100.07020.33
5.5.340.0170.04317.94
5.5.330.0070.05020.32
5.5.320.0400.06020.18
5.5.310.0170.04020.35
5.5.300.0100.07717.98
5.5.290.0000.04317.95
5.5.280.0170.07020.87
5.5.270.0070.08720.89
5.5.260.0130.04720.87
5.5.250.0070.08020.59
5.5.240.0030.05020.27
5.4.450.0300.03719.16
5.4.440.0430.04719.49
5.4.430.0370.04319.41
5.4.420.0300.04719.64
5.4.410.0400.03719.33
5.4.400.0270.04344.80
5.4.390.0400.03743.92
5.4.380.0130.05018.61
5.4.370.0100.05718.47
5.4.360.0030.06018.49
5.4.350.0100.05718.46
5.4.340.0230.04318.77
5.4.320.0070.03512.50
5.4.310.0070.03612.50
5.4.300.0080.04012.50
5.4.290.0040.03812.50
5.4.280.0080.03312.39
5.4.270.0040.04712.40
5.4.260.0090.04012.40
5.4.250.0090.05712.39
5.4.240.0060.04012.39
5.4.230.0090.04512.38
5.4.220.0070.03612.38
5.4.210.0050.04312.38
5.4.200.0070.04812.39
5.4.190.0070.03512.38
5.4.180.0050.03612.38
5.4.170.0050.03612.39
5.4.160.0090.03512.39
5.4.150.0080.04012.39
5.4.140.0060.03612.07
5.4.130.0070.04212.06
5.4.120.0060.03512.01
5.4.110.0050.04412.02
5.4.100.0100.03112.01
5.4.90.0060.03612.02
5.4.80.0020.04012.01
5.4.70.0100.03112.01
5.4.60.0080.03812.01
5.4.50.0080.03212.00
5.4.40.0060.03911.99
5.4.30.0070.03411.99
5.4.20.0030.03712.00
5.4.10.0070.04111.99
5.4.00.0020.04611.48
5.3.290.0060.03812.80
5.3.280.0070.03612.71
5.3.270.0060.04112.73
5.3.260.0050.03912.72
5.3.250.0080.03412.72
5.3.240.0060.03712.72
5.3.230.0070.03512.71
5.3.220.0070.03512.68
5.3.210.0050.03912.68
5.3.200.0060.03612.68
5.3.190.0060.03712.68
5.3.180.0040.03712.68
5.3.170.0030.03912.67
5.3.160.0070.03512.67
5.3.150.0070.03512.67
5.3.140.0050.03712.66
5.3.130.0080.04212.66
5.3.120.0070.04212.66
5.3.110.0070.04612.66
5.3.100.0100.04312.12
5.3.90.0050.03612.10
5.3.80.0080.04212.09
5.3.70.0070.04012.09
5.3.60.0050.03612.08
5.3.50.0050.03612.04
5.3.40.0050.03712.03
5.3.30.0060.03411.99
5.3.20.0080.03211.77
5.3.10.0070.03411.73
5.3.00.0040.03811.72
5.2.170.0050.0309.22
5.2.160.0020.0339.22
5.2.150.0040.0309.22
5.2.140.0040.0309.22
5.2.130.0060.0279.18
5.2.120.0050.0279.18
5.2.110.0060.0349.19
5.2.100.0040.0319.18
5.2.90.0050.0379.18
5.2.80.0050.0299.18
5.2.70.0060.0289.18
5.2.60.0070.0279.13
5.2.50.0070.0379.10
5.2.40.0060.0289.08
5.2.30.0050.0379.05
5.2.20.0050.0319.05
5.2.10.0060.0278.95
5.2.00.0060.0298.81
5.1.60.0050.0288.09
5.1.50.0040.0268.09
5.1.40.0040.0278.07
5.1.30.0050.0268.42
5.1.20.0050.0268.45
5.1.10.0050.0268.17
5.1.00.0050.0278.17
5.0.50.0030.0216.64
5.0.40.0070.0166.50
5.0.30.0050.0306.32
5.0.20.0040.0226.28
5.0.10.0040.0286.26
5.0.00.0050.0396.25
4.4.90.0030.0154.78
4.4.80.0030.0154.75
4.4.70.0030.0184.75
4.4.60.0030.0154.75
4.4.50.0030.0154.77
4.4.40.0030.0264.70
4.4.30.0040.0144.76
4.4.20.0030.0184.84
4.4.10.0010.0204.85
4.4.00.0030.0254.76
4.3.110.0040.0154.67
4.3.100.0020.0164.66
4.3.90.0010.0164.64
4.3.80.0030.0244.59
4.3.70.0020.0154.63
4.3.60.0030.0144.63
4.3.50.0030.0204.63
4.3.40.0040.0304.53
4.3.30.0010.0223.30
4.3.20.0030.0203.28
4.3.10.0010.0193.23
4.3.00.0000.02043.92

preferences:
41.63 ms | 401 KiB | 5 Q