3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { 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"}; setConfigParam('aVariableName', array('one', 'two', 'three')); echo $this->$aVariableName; } 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)
8.3.60.0100.00717.00
8.3.50.0130.00622.17
8.3.40.0160.00019.09
8.3.30.0070.00719.22
8.3.20.0040.00420.17
8.3.10.0040.00423.53
8.3.00.0060.00319.51
8.2.180.0100.01018.29
8.2.170.0080.00622.96
8.2.160.0070.00720.35
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00422.11
8.2.110.0090.00022.11
8.2.100.0000.01117.67
8.2.90.0040.00419.21
8.2.80.0090.00018.03
8.2.70.0060.00317.75
8.2.60.0000.00818.03
8.2.50.0040.00818.07
8.2.40.0000.00818.16
8.2.30.0030.00618.14
8.2.20.0050.00217.64
8.2.10.0000.00719.97
8.2.00.0000.00817.90
8.1.280.0070.01025.92
8.1.270.0050.00323.91
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0100.00023.83
8.1.230.0030.00719.16
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0000.00817.42
8.1.180.0060.00618.10
8.1.170.0040.00418.65
8.1.160.0070.00022.07
8.1.150.0000.00718.70
8.1.140.0000.00817.43
8.1.130.0040.00417.81
8.1.120.0030.00317.48
8.1.110.0000.00917.22
8.1.100.0030.00717.48
8.1.90.0030.00317.49
8.1.80.0030.00317.38
8.1.70.0000.00817.44
8.1.60.0030.00917.61
8.1.50.0040.00417.53
8.1.40.0040.00417.43
8.1.30.0040.00417.63
8.1.20.0000.00717.55
8.1.10.0000.00817.44
8.1.00.0000.00817.57
8.0.300.0040.00418.77
8.0.290.0080.00017.18
8.0.280.0000.00718.46
8.0.270.0000.00717.28
8.0.260.0070.00017.20
8.0.250.0000.00717.01
8.0.240.0000.00716.97
8.0.230.0030.00317.05
8.0.220.0080.00016.99
8.0.210.0030.00517.02
8.0.200.0000.00617.07
8.0.190.0040.00416.98
8.0.180.0000.00716.88
8.0.170.0060.00316.92
8.0.160.0080.00016.91
8.0.150.0050.00216.89
8.0.140.0000.00716.83
8.0.130.0000.00513.39
8.0.120.0040.00416.82
8.0.110.0070.00016.96
8.0.100.0080.00017.00
8.0.90.0030.00516.91
8.0.80.0040.01316.95
8.0.70.0000.00716.83
8.0.60.0040.00416.76
8.0.50.0060.00316.96
8.0.30.0100.00917.20
8.0.20.0070.01117.40
8.0.10.0000.00817.06
8.0.00.0100.00916.98
7.4.330.0000.00515.04
7.4.320.0000.00716.48
7.4.300.0000.00616.47
7.4.290.0000.00816.57
7.4.280.0000.00716.60
7.4.270.0080.00016.66
7.4.260.0000.00716.59
7.4.250.0030.00316.41
7.4.240.0040.00416.60
7.4.230.0070.00016.64
7.4.220.0060.01616.50
7.4.210.0080.00816.52
7.4.200.0020.00516.59
7.4.190.0000.00716.77
7.4.160.0120.00916.51
7.4.150.0040.01317.40
7.4.140.0100.00917.86
7.4.130.0090.00816.61
7.4.120.0120.00816.59
7.4.110.0130.00316.36
7.4.100.0060.01316.62
7.4.90.0130.00316.52
7.4.80.0140.00619.39
7.4.70.0140.00516.43
7.4.60.0120.00316.41
7.4.50.0000.00816.37
7.4.40.0070.01022.77
7.4.30.0090.00916.59
7.4.00.0100.00814.88
7.3.330.0000.00513.25
7.3.320.0030.00313.27
7.3.310.0030.00316.47
7.3.300.0040.00416.45
7.3.290.0060.00816.43
7.3.280.0090.00916.37
7.3.270.0110.00617.40
7.3.260.0130.00416.37
7.3.250.0110.01016.62
7.3.240.0130.00316.60
7.3.230.0070.01016.40
7.3.210.0170.00716.40
7.3.200.0070.01619.39
7.3.190.0090.00916.45
7.3.180.0030.01216.70
7.3.170.0100.00716.57
7.3.160.0130.00716.45
7.3.120.0070.01014.69
7.3.110.0030.01314.79
7.3.100.0070.00714.88
7.3.90.0030.01414.87
7.3.80.0090.00615.20
7.3.70.0040.00414.84
7.3.60.0060.00614.96
7.3.50.0040.00714.68
7.3.40.0120.00014.68
7.3.30.0090.00314.89
7.3.20.0100.00316.78
7.3.10.0100.00616.48
7.3.00.0140.00316.73
7.2.330.0150.00316.48
7.2.320.0090.00916.43
7.2.310.0100.00716.36
7.2.300.0030.01316.76
7.2.290.0110.00616.79
7.2.250.0030.01715.24
7.2.240.0100.01015.30
7.2.230.0130.00314.90
7.2.220.0090.00315.02
7.2.210.0120.00615.15
7.2.200.0060.00615.10
7.2.190.0070.01115.02
7.2.180.0070.00715.06
7.2.170.0120.00615.03
7.2.60.0030.01217.04
7.2.00.0180.00019.50
7.1.330.0030.01015.78
7.1.320.0100.00615.80
7.1.310.0080.00615.94
7.1.300.0070.00315.79
7.1.290.0070.00715.54
7.1.280.0000.01115.71
7.1.270.0000.01015.77
7.1.260.0080.00815.80
7.1.200.0000.00715.84
7.1.100.0000.01117.68
7.1.70.0070.00716.87
7.1.60.0130.01019.46
7.1.50.0030.01316.99
7.1.00.0030.07722.31
7.0.200.0240.00314.69
7.0.140.0000.07322.04
7.0.60.0030.04320.02
7.0.50.0130.07017.88
7.0.40.0070.04320.22
7.0.30.0570.04720.10
7.0.20.0470.07020.30
7.0.10.0070.05320.25
7.0.00.0070.05720.23
5.6.210.0130.06720.73
5.6.200.0070.08318.18
5.6.190.0070.04320.55
5.6.180.0200.04320.50
5.6.170.0300.07720.57
5.6.160.0070.05720.47
5.6.150.0100.07318.23
5.6.140.0030.03718.15
5.6.130.0000.06718.18
5.6.120.0030.06321.01
5.6.110.0170.07721.05
5.6.100.0130.07721.14
5.6.90.0070.05020.95
5.6.80.0030.08320.40
5.6.70.3670.03320.38
5.5.350.0100.07720.48
5.5.340.0070.03718.07
5.5.330.0000.05020.29
5.5.320.0270.07320.36
5.5.310.0270.07320.36
5.5.300.0000.08017.95
5.5.290.0200.07318.05
5.5.280.0170.07020.69
5.5.270.0030.04020.73
5.5.260.0100.08020.80
5.5.250.0130.06720.71
5.5.240.0000.03720.37
5.4.450.0570.05319.34
5.4.440.0730.07019.20
5.4.430.0000.06319.58
5.4.420.0870.05319.60
5.4.410.0700.06319.36
5.4.400.0630.04019.26
5.4.390.0200.04319.28
5.4.380.0130.06318.75
5.4.370.0330.05018.80
5.4.360.0270.04318.63
5.4.350.0070.03312.02
5.4.340.0050.03512.02
5.4.320.0060.04812.51
5.4.310.0060.03812.50
5.4.300.0080.04312.50
5.4.290.0070.03912.49
5.4.280.0090.04112.38
5.4.270.0080.04812.38
5.4.260.0090.03612.38
5.4.250.0150.04612.39
5.4.240.0130.03912.38
5.4.230.0070.05612.38
5.4.220.0080.05212.38
5.4.210.0150.04512.38
5.4.200.0120.05212.38
5.4.190.0050.06012.37
5.4.180.0100.05112.37
5.4.170.0060.05012.39
5.4.160.0070.03712.38
5.4.150.0050.03812.38
5.4.140.0060.03812.06
5.4.130.0130.03112.05
5.4.120.0070.03512.01
5.4.110.0070.05312.00
5.4.100.0050.04412.00
5.4.90.0050.04012.00
5.4.80.0070.03712.00
5.4.70.0080.03412.00
5.4.60.0070.03512.00
5.4.50.0100.03612.00
5.4.40.0080.03411.99
5.4.30.0090.03511.98
5.4.20.0110.04011.98
5.4.10.0090.03511.98
5.4.00.0060.03711.48
5.3.290.0060.04312.80
5.3.280.0070.04412.71
5.3.270.0090.03912.73
5.3.260.0080.04412.72
5.3.250.0110.05012.72
5.3.240.0120.05212.71
5.3.230.0080.05012.70
5.3.220.0140.06012.68
5.3.210.0110.05512.68
5.3.200.0070.03812.68
5.3.190.0070.03912.68
5.3.180.0040.04012.67
5.3.170.0090.04012.67
5.3.160.0080.03712.68
5.3.150.0100.04812.67
5.3.140.0060.04312.66
5.3.130.0070.04012.66
5.3.120.0150.04912.65
5.3.110.0060.05812.66
5.3.100.0090.04312.13
5.3.90.0090.03812.11
5.3.80.0130.05712.10
5.3.70.0130.03712.10
5.3.60.0060.03712.09
5.3.50.0060.04812.03
5.3.40.0120.04312.03
5.3.30.0140.04411.99
5.3.20.0080.04211.77
5.3.10.0090.03511.74
5.3.00.0080.04211.73
5.2.170.0050.0319.22
5.2.160.0090.0339.23
5.2.150.0050.0329.22
5.2.140.0040.0329.22
5.2.130.0070.0399.18
5.2.120.0050.0309.18
5.2.110.0030.0329.19
5.2.100.0040.0309.18
5.2.90.0030.0329.18
5.2.80.0040.0339.18
5.2.70.0080.0409.18
5.2.60.0060.0429.14
5.2.50.0100.0359.11
5.2.40.0080.0279.08
5.2.30.0070.0309.05
5.2.20.0060.0299.04
5.2.10.0090.0248.95
5.2.00.0040.0308.82
5.1.60.0050.0258.09
5.1.50.0060.0238.09
5.1.40.0070.0268.07
5.1.30.0050.0268.42
5.1.20.0020.0288.45
5.1.10.0070.0238.17
5.1.00.0030.0288.17
5.0.50.0030.0226.65
5.0.40.0040.0196.52
5.0.30.0070.0296.32
5.0.20.0050.0196.29
5.0.10.0050.0196.27
5.0.00.0040.0326.27
4.4.90.0060.0144.78
4.4.80.0050.0164.75
4.4.70.0020.0214.76
4.4.60.0020.0174.76
4.4.50.0040.0154.77
4.4.40.0020.0284.71
4.4.30.0030.0224.76
4.4.20.0030.0184.85
4.4.10.0020.0174.85
4.4.00.0030.0274.76
4.3.110.0020.0164.67
4.3.100.0020.0174.66
4.3.90.0040.0164.64
4.3.80.0050.0304.58
4.3.70.0050.0194.63
4.3.60.0050.0184.63
4.3.50.0040.0214.62
4.3.40.0020.0304.54
4.3.30.0030.0193.31
4.3.20.0060.0193.29
4.3.10.0020.0173.24
4.3.00.0130.0207.44

preferences:
48.38 ms | 401 KiB | 5 Q