3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Bar { private static $instance; public static function getInstance() { if (null === static::$instance) { static::$instance = new static(); } return static::$instance; } protected function __construct() { } } class Foo extends Bar { protected function __construct() { } } Foo::getInstance();

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)
8.3.60.0230.00318.55
8.3.50.0140.00222.05
8.3.40.0030.01218.79
8.3.30.0110.00319.09
8.3.20.0040.00420.29
8.3.10.0080.00022.15
8.3.00.0070.00322.42
8.2.180.0070.01416.50
8.2.170.0120.00322.96
8.2.160.0060.00920.64
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0050.00319.35
8.2.110.0030.00622.27
8.2.100.0090.00317.91
8.2.90.0040.00419.07
8.2.80.0000.00818.03
8.2.70.0060.00317.63
8.2.60.0030.00517.93
8.2.50.0040.00418.07
8.2.40.0110.00017.99
8.2.30.0030.00817.88
8.2.20.0070.00017.58
8.2.10.0040.00417.62
8.2.00.0050.00317.56
8.1.280.0070.01425.92
8.1.270.0000.00723.88
8.1.260.0070.00026.35
8.1.250.0070.00728.09
8.1.240.0030.01423.94
8.1.230.0040.00719.09
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0050.00317.53
8.1.180.0090.00018.10
8.1.170.0070.00718.22
8.1.160.0040.00421.87
8.1.150.0040.00418.62
8.1.140.0070.00017.30
8.1.130.0040.00417.74
8.1.120.0040.00317.41
8.1.110.0030.00617.42
8.1.100.0030.00317.41
8.1.90.0070.00017.30
8.1.80.0040.00417.41
8.1.70.0080.00017.39
8.1.60.0030.00617.48
8.1.50.0030.00517.54
8.1.40.0050.00217.55
8.1.30.0040.00417.57
8.1.20.0050.00317.70
8.1.10.0030.00517.48
8.1.00.0000.00817.50
8.0.300.0040.00418.77
8.0.290.0000.00717.05
8.0.280.0070.00018.38
8.0.270.0030.00317.11
8.0.260.0000.00716.75
8.0.250.0040.00416.91
8.0.240.0040.00416.79
8.0.230.0070.00016.85
8.0.220.0030.00316.86
8.0.210.0030.00316.82
8.0.200.0060.00016.88
8.0.190.0070.00316.88
8.0.180.0070.00016.88
8.0.170.0030.00616.81
8.0.160.0040.00416.77
8.0.150.0000.00716.70
8.0.140.0040.00416.79
8.0.130.0000.00613.31
8.0.120.0040.00416.79
8.0.110.0030.00516.66
8.0.100.0040.00416.93
8.0.90.0040.00416.78
8.0.80.0000.01516.81
8.0.70.0040.00416.94
8.0.60.0000.00816.66
8.0.50.0000.00716.71
8.0.30.0150.00816.92
8.0.20.0100.01217.41
8.0.10.0000.00816.93
8.0.00.0070.01316.63
7.4.330.0050.00015.00
7.4.320.0030.00316.53
7.4.300.0000.00716.57
7.4.290.0040.00416.61
7.4.280.0000.00716.59
7.4.270.0000.00716.48
7.4.260.0000.00716.39
7.4.250.0000.00816.46
7.4.240.0020.00516.56
7.4.230.0000.00716.55
7.4.220.0030.01316.64
7.4.210.0040.01216.62
7.4.200.0040.00416.38
7.4.190.0030.00416.41
7.4.160.0100.00616.31
7.4.150.0170.00717.40
7.4.140.0050.01317.86
7.4.130.0110.01016.66
7.4.120.0150.00616.54
7.4.110.0070.01016.64
7.4.100.0110.00516.38
7.4.90.0080.00916.48
7.4.80.0070.01119.39
7.4.70.0080.00816.46
7.4.60.0110.00716.50
7.4.50.0000.00516.38
7.4.40.0150.00022.77
7.4.30.0090.00816.49
7.4.00.0050.01214.72
7.3.330.0050.00013.43
7.3.320.0030.00313.38
7.3.310.0040.00416.25
7.3.300.0000.00716.32
7.3.290.0050.00816.26
7.3.280.0070.01116.34
7.3.270.0060.01317.40
7.3.260.0140.00316.45
7.3.250.0150.00816.38
7.3.240.0040.01216.50
7.3.230.0140.00316.45
7.3.210.0100.00616.27
7.3.200.0120.00919.39
7.3.190.0070.01516.20
7.3.180.0030.01316.43
7.3.170.0070.01016.44
7.3.160.0110.00416.31
7.3.120.0050.01114.81
7.3.110.0000.02014.69
7.3.100.0100.00314.61
7.3.90.0110.00414.96
7.3.80.0060.01014.77
7.3.70.0060.00614.62
7.3.60.0030.01014.92
7.3.50.0030.01214.67
7.3.40.0070.01114.91
7.3.30.0000.01614.79
7.3.20.0100.00716.77
7.3.10.0030.00716.81
7.3.00.0030.00616.44
7.2.330.0120.00416.55
7.2.320.0100.01316.39
7.2.310.0060.01516.73
7.2.300.0090.00916.55
7.2.290.0130.00616.82
7.2.250.0070.01115.10
7.2.240.0130.00315.21
7.2.230.0030.01614.78
7.2.220.0000.01114.91
7.2.210.0030.00914.86
7.2.200.0120.00014.79
7.2.190.0070.01014.67
7.2.180.0040.01514.70
7.2.170.0100.00714.90
7.2.60.0090.00616.68
7.2.00.0070.00719.24
7.1.330.0000.01515.84
7.1.320.0030.01015.52
7.1.310.0120.00615.79
7.1.300.0040.00415.28
7.1.290.0030.01315.57
7.1.280.0030.00615.58
7.1.270.0060.00615.72
7.1.260.0030.00915.61
7.1.200.0040.00815.72
7.1.100.0050.00317.68
7.1.70.0050.00517.18
7.1.60.0090.00619.82
7.1.50.0000.01216.79
7.1.00.0100.06722.44
7.0.200.0060.00616.85
7.0.140.0030.07322.18
7.0.60.0130.08020.07
7.0.50.0070.05317.88
7.0.40.0130.07020.27
7.0.30.0130.04320.20
7.0.20.0270.08720.27
7.0.10.0070.05320.33
7.0.00.0030.05020.16
5.6.280.0100.06720.82
5.6.210.0100.07720.67
5.6.200.0070.09018.21
5.6.190.0100.05020.63
5.6.180.0070.08020.77
5.6.170.0200.04720.56
5.6.160.0170.07320.47
5.6.150.0030.06018.17
5.6.140.0000.06318.16
5.6.130.0100.05318.18
5.6.120.0100.07021.15
5.6.110.0100.08021.12
5.6.100.0100.08021.14
5.6.90.0030.08721.01
5.6.80.0170.07020.41
5.5.350.0030.04320.45
5.5.340.0130.04017.94
5.5.330.0070.07020.37
5.5.320.0300.04720.51
5.5.310.0270.06020.32
5.5.300.0070.07318.08
5.5.290.0030.06717.97
5.5.280.0070.04020.78
5.5.270.0000.04320.79
5.5.260.0070.04720.90
5.5.250.0130.07320.64
5.5.240.0000.08320.27
5.4.450.0700.03719.54
5.4.440.0470.03719.32
5.4.430.0530.05019.27
5.4.420.0630.03319.27
5.4.410.0230.04018.98
5.4.400.0030.06018.79
5.4.390.0070.05718.75
5.4.380.0130.05718.53
5.4.370.0170.05018.73
5.4.360.0200.04318.69
5.4.350.0200.05018.76
5.4.340.0070.06018.63
5.4.320.0030.03912.50
5.4.310.0080.04812.50
5.4.300.0060.03612.51
5.4.290.0050.03912.50
5.4.280.0080.04512.37
5.4.270.0100.04112.38
5.4.260.0060.05312.37
5.4.250.0120.04612.37
5.4.240.0080.05512.37
5.4.230.0080.05112.37
5.4.220.0060.05212.36
5.4.210.0040.04112.37
5.4.200.0070.03912.36
5.4.190.0070.03612.36
5.4.180.0040.04212.36
5.4.170.0070.04912.37
5.4.160.0060.04212.36
5.4.150.0050.03912.36
5.4.140.0040.04212.05
5.4.130.0040.03812.03
5.4.120.0040.03711.99
5.4.110.0080.03411.99
5.4.100.0100.03411.99
5.4.90.0050.03911.99
5.4.80.0050.04011.98
5.4.70.0060.04211.98
5.4.60.0080.03311.98
5.4.50.0060.03611.98
5.4.40.0120.03211.97
5.4.30.0120.03111.97
5.4.20.0060.03711.97
5.4.10.0070.04111.97
5.4.00.0030.04111.46
5.3.290.0060.05212.80
5.3.280.0130.05712.71
5.3.270.0120.05012.72
5.3.260.0140.05712.72
5.3.250.0080.04112.72
5.3.240.0080.04812.72
5.3.230.0080.03812.71
5.3.220.0060.05512.68
5.3.210.0060.05612.68
5.3.200.0110.04912.68
5.3.190.0090.05812.67
5.3.180.0090.04412.67
5.3.170.0040.04112.67
5.3.160.0080.03512.68
5.3.150.0100.03812.67
5.3.140.0100.04812.66
5.3.130.0110.04612.66
5.3.120.0100.06212.66
5.3.110.0090.05612.66
5.3.100.0120.04312.12
5.3.90.0080.04212.08
5.3.80.0070.03912.07
5.3.70.0080.03912.08
5.3.60.0060.05612.06
5.3.50.0100.04612.00
5.3.40.0150.06912.00
5.3.30.0080.04911.95
5.3.20.0080.04711.75
5.3.10.0090.04211.71
5.3.00.0070.05211.70
5.2.170.0030.0409.19
5.2.160.0110.0469.19
5.2.150.0080.0299.18
5.2.140.0080.0299.18
5.2.130.0030.0329.14
5.2.120.0050.0289.14
5.2.110.0070.0399.14
5.2.100.0080.0329.14
5.2.90.0070.0379.14
5.2.80.0080.0409.14
5.2.70.0080.0399.14
5.2.60.0080.0429.09
5.2.50.0080.0439.07
5.2.40.0120.0339.04
5.2.30.0050.0389.02
5.2.20.0090.0349.00
5.2.10.0070.0358.91
5.2.00.0090.0378.79
5.1.60.0060.0368.06
5.1.50.0070.0318.06
5.1.40.0050.0348.04
5.1.30.0100.0318.39
5.1.20.0050.0338.41
5.1.10.0030.0298.14
5.1.00.0060.0288.14
5.0.50.0050.0276.61
5.0.40.0070.0246.48
5.0.30.0090.0476.29
5.0.20.0050.0226.26
5.0.10.0080.0286.23
5.0.00.0130.0676.22
4.4.90.0050.0144.78
4.4.80.0050.0234.75
4.4.70.0010.0194.75
4.4.60.0040.0164.75
4.4.50.0050.0204.77
4.4.40.0010.0284.71
4.4.30.0020.0174.76
4.4.20.0030.0204.84
4.4.10.0050.0234.85
4.4.00.0060.0334.75
4.3.110.0040.0194.67
4.3.100.0040.0174.66
4.3.90.0060.0134.63
4.3.80.0040.0254.58
4.3.70.0040.0174.63
4.3.60.0060.0184.63
4.3.50.0030.0234.63
4.3.40.0030.0434.54
4.3.30.0010.0193.28
4.3.20.0020.0163.26
4.3.10.0020.0173.23
4.3.00.0300.01715.11

preferences:
41.72 ms | 401 KiB | 5 Q