3v4l.org

run code in 300+ PHP versions simultaneously
e<?php class foo { public $aVariableName = 'aValue'; function __construct() { $this->a = "hello"; $this->b = "hi"; $this->val = "howdy"; $val = "a"; echo $this->{$val}; // outputs "hello" echo "\n"; $val = "b"; echo $this->{$val}; // outputs "hi" echo "\n"; echo $this->val; //outputs "howdy" echo "\n"; echo $this->{"val"}; $this->setConfigParam('aVariableName', array('one', 'two', 'three')); // echo $this->$aVariableName; $name = 'aVariableName'; var_dump($this->$name); var_dump($this->_aConfigParams); } public function setConfigParam( $sName, $sValue ) { if ( isset( $this->$sName ) ) { $this->$sName = $sValue; } else { $this->_aConfigParams[$sName] = $sValue; } } } $foo = new foo();

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)
8.3.60.0110.00416.75
8.3.50.0070.01422.02
8.3.40.0040.01118.65
8.3.30.0070.01119.04
8.3.20.0040.00420.11
8.3.10.0050.00323.66
8.3.00.0040.00419.50
8.2.180.0090.00916.63
8.2.170.0120.00322.96
8.2.160.0070.00720.39
8.2.150.0000.00724.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00022.16
8.2.110.0090.00022.04
8.2.100.0070.00417.77
8.2.90.0050.00319.22
8.2.80.0090.00017.97
8.2.70.0050.00317.80
8.2.60.0080.00017.80
8.2.50.0040.00418.10
8.2.40.0050.00219.34
8.2.30.0000.00719.20
8.2.20.0000.00717.59
8.2.10.0030.00518.21
8.2.00.0090.00317.77
8.1.280.0090.00625.92
8.1.270.0090.00623.79
8.1.260.0030.01026.35
8.1.250.0190.00028.09
8.1.240.0150.00622.46
8.1.230.0070.00718.86
8.1.220.0060.00317.74
8.1.210.0030.00518.77
8.1.200.0030.00617.23
8.1.190.0030.00617.23
8.1.180.0050.00318.10
8.1.170.0030.00518.76
8.1.160.0000.00822.14
8.1.150.0000.00718.66
8.1.140.0030.00517.52
8.1.130.0080.00017.91
8.1.120.0030.00417.41
8.1.110.0030.00717.52
8.1.100.0030.00717.41
8.1.90.0030.00317.39
8.1.80.0080.00017.49
8.1.70.0000.00717.41
8.1.60.0070.00417.46
8.1.50.0040.00417.55
8.1.40.0040.00417.59
8.1.30.0040.00417.61
8.1.20.0060.00317.66
8.1.10.0050.00217.55
8.1.00.0040.00417.62
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00818.47
8.0.270.0000.00717.13
8.0.260.0030.00317.27
8.0.250.0000.00717.07
8.0.240.0060.00317.02
8.0.230.0040.00417.07
8.0.220.0040.00416.95
8.0.210.0000.00717.02
8.0.200.0030.00317.09
8.0.190.0000.00817.08
8.0.180.0000.00817.00
8.0.170.0000.00716.91
8.0.160.0000.00716.94
8.0.150.0000.00716.85
8.0.140.0080.00016.95
8.0.130.0000.00513.37
8.0.120.0040.00416.93
8.0.110.0000.00716.95
8.0.100.0040.00417.08
8.0.90.0000.00816.98
8.0.80.0070.01416.95
8.0.70.0030.00316.88
8.0.60.0030.00517.00
8.0.50.0080.00016.95
8.0.30.0080.01517.09
8.0.20.0120.00917.41
8.0.10.0050.00217.20
8.0.00.0130.00416.66
7.4.330.0020.00215.00
7.4.320.0000.00716.62
7.4.300.0030.00316.63
7.4.290.0030.00316.51
7.4.280.0040.00416.65
7.4.270.0040.00416.46
7.4.260.0070.00016.56
7.4.250.0030.00316.55
7.4.240.0020.00616.55
7.4.230.0000.00716.56
7.4.220.0110.01416.51
7.4.210.0090.00716.56
7.4.200.0070.00016.72
7.4.190.0030.00316.63
7.4.160.0180.00416.50
7.4.150.0160.01017.40
7.4.140.0120.00517.86
7.4.130.0090.00716.58
7.4.120.0090.00916.56
7.4.110.0140.00416.62
7.4.100.0140.00616.44
7.4.90.0070.01016.45
7.4.80.0170.00319.39
7.4.70.0070.01616.53
7.4.60.0100.00616.52
7.4.50.0040.00416.48
7.4.40.0090.00922.77
7.4.30.0000.01816.59
7.4.00.0030.01214.89
7.3.330.0000.00513.38
7.3.320.0060.00013.47
7.3.310.0070.00016.49
7.3.300.0000.00716.30
7.3.290.0100.01016.42
7.3.280.0100.00616.47
7.3.270.0110.00617.40
7.3.260.0090.01516.45
7.3.250.0160.00516.59
7.3.240.0100.01116.68
7.3.230.0060.01216.44
7.3.210.0110.00816.61
7.3.200.0120.01119.39
7.3.190.0060.01216.57
7.3.180.0120.00316.65
7.3.170.0030.01516.57
7.3.160.0140.01016.63
7.3.120.0070.01115.05
7.2.330.0130.00516.49
7.2.320.0170.00716.64
7.2.310.0130.00916.50
7.2.300.0090.00816.64
7.2.290.0180.00616.84
7.2.00.0150.00919.02
7.1.100.0040.00818.16
7.1.70.0080.00317.00
7.1.60.0200.00319.46
7.1.50.0080.00816.61
7.1.00.0000.08022.54
7.0.200.0110.00714.89
7.0.140.0000.07022.08
7.0.60.0070.03720.04
7.0.50.0030.06318.03
7.0.40.0200.07020.13
7.0.30.0270.08320.09
7.0.20.0300.07720.10
7.0.10.0030.08720.15
7.0.00.0100.04020.07
5.6.280.0070.07020.91
5.6.210.0070.07320.77
5.6.200.0170.07018.19
5.6.190.0030.05720.60
5.6.180.0200.07020.50
5.6.170.0300.07720.43
5.6.160.0000.04720.47
5.6.150.0070.04318.14
5.6.140.0100.08018.28
5.6.130.0030.04318.27
5.6.120.0070.03721.03
5.6.110.0130.08721.01
5.6.100.0070.08720.89
5.6.90.0130.03720.93
5.6.80.0070.04020.38
5.6.70.4470.03720.38
5.5.350.0070.08020.47
5.5.340.0000.04317.97
5.5.330.0130.08320.42
5.5.320.0470.07320.35
5.5.310.0230.07320.34
5.5.300.0030.07018.06
5.5.290.0100.08318.07
5.5.280.0000.05020.89
5.5.270.0000.06020.90
5.5.260.0000.09320.87
5.5.250.0100.07320.56
5.5.240.0270.03320.23
5.4.450.0700.06719.48
5.4.440.0700.06319.70
5.4.430.1030.05319.47
5.4.420.0670.00019.41
5.4.410.0130.05319.04
5.4.400.0200.05318.79
5.4.390.0130.06318.79
5.4.380.0170.06018.79
5.4.370.0130.05018.62
5.4.360.0130.05018.78
5.4.350.0060.03712.02
5.4.340.0070.04312.02
5.4.320.0120.04612.50
5.4.310.0060.03712.50
5.4.300.0070.04312.50
5.4.290.0070.04212.48
5.4.280.0110.03712.38
5.4.270.0070.04012.38
5.4.260.0100.03912.38
5.4.250.0100.05112.38
5.4.240.0110.05112.38
5.4.230.0100.05912.38
5.4.220.0080.05012.37
5.4.210.0130.04612.38
5.4.200.0110.05812.38
5.4.190.0140.04812.37
5.4.180.0100.05112.37
5.4.170.0070.04912.38
5.4.160.0130.04512.38
5.4.150.0070.05012.38
5.4.140.0090.05412.05
5.4.130.0090.04212.04
5.4.120.0050.06312.00
5.4.110.0130.05512.00
5.4.100.0070.03812.00
5.4.90.0080.03612.00
5.4.80.0150.03712.00
5.4.70.0090.03512.00
5.4.60.0100.03711.99
5.4.50.0070.04812.00
5.4.40.0060.05311.98
5.4.30.0090.05411.98
5.4.20.0110.04911.98
5.4.10.0110.04911.98
5.4.00.0080.05611.47
5.3.290.0080.03912.80
5.3.280.0080.04712.70
5.3.270.0110.05212.72
5.3.260.0110.05612.72
5.3.250.0110.05712.72
5.3.240.0070.05612.72
5.3.230.0130.07212.71
5.3.220.0150.05412.68
5.3.210.0110.05612.68
5.3.200.0160.06712.68
5.3.190.0140.05512.68
5.3.180.0070.07812.67
5.3.170.0090.05912.67
5.3.160.0070.04012.67
5.3.150.0060.04012.67
5.3.140.0070.05612.66
5.3.130.0100.05312.66
5.3.120.0050.04312.66
5.3.110.0070.06012.66
5.3.100.0110.05012.12
5.3.90.0080.05012.11
5.3.80.0080.04112.10
5.3.70.0070.05812.09
5.3.60.0070.03712.08
5.3.50.0070.03812.03
5.3.40.0080.05112.03
5.3.30.0090.03711.99
5.3.20.0120.03211.77
5.3.10.0100.04011.73
5.3.00.0070.03611.72
5.2.170.0090.0289.22
5.2.160.0050.0309.23
5.2.150.0060.0339.22
5.2.140.0060.0319.22
5.2.130.0070.0339.18
5.2.120.0040.0319.18
5.2.110.0110.0299.19
5.2.100.0090.0299.18
5.2.90.0090.0279.18
5.2.80.0040.0339.17
5.2.70.0050.0329.18
5.2.60.0060.0319.13
5.2.50.0050.0369.10
5.2.40.0030.0339.08
5.2.30.0090.0319.05
5.2.20.0050.0299.04
5.2.10.0060.0398.95
5.2.00.0100.0408.82
5.1.60.0020.0278.10
5.1.50.0060.0348.09
5.1.40.0070.0368.07
5.1.30.0080.0558.42
5.1.20.0100.0428.44
5.1.10.0040.0408.17
5.1.00.0160.0508.17
5.0.50.0100.0236.64
5.0.40.0060.0216.51
5.0.30.0020.0346.32
5.0.20.0060.0256.28
5.0.10.0040.0256.27
5.0.00.0050.0406.26
4.4.90.0040.0224.78
4.4.80.0020.0174.76
4.4.70.0040.0214.76
4.4.60.0060.0184.76
4.4.50.0050.0204.77
4.4.40.0050.0314.71
4.4.30.0060.0234.75
4.4.20.0040.0304.84
4.4.10.0030.0254.85
4.4.00.0050.0354.76
4.3.110.0040.0254.67
4.3.100.0040.0234.66
4.3.90.0050.0214.63
4.3.80.0030.0334.58
4.3.70.0080.0184.63
4.3.60.0030.0234.63
4.3.50.0030.0234.62
4.3.40.0020.0344.54
4.3.30.0030.0223.30
4.3.20.0040.0213.28
4.3.10.0030.0193.23
4.3.00.0030.0238.05

preferences:
41.22 ms | 401 KiB | 5 Q