3v4l.org

run code in 300+ PHP versions simultaneously
e<?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"}; $this->setConfigParam('aVariableName', array('one', 'two', 'three')); echo $this->aVariableName; var_dump($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)
8.3.60.0120.00316.75
8.3.50.0090.01221.95
8.3.40.0060.00918.82
8.3.30.0060.00919.27
8.3.20.0000.00820.30
8.3.10.0040.00423.71
8.3.00.0080.00019.38
8.2.180.0120.00618.29
8.2.170.0120.00322.96
8.2.160.0140.00020.39
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00422.26
8.2.110.0060.00322.15
8.2.100.0040.00818.03
8.2.90.0000.00719.10
8.2.80.0040.00418.05
8.2.70.0060.00317.50
8.2.60.0000.00818.05
8.2.50.0080.00518.07
8.2.40.0050.00318.22
8.2.30.0040.00418.26
8.2.20.0050.00217.78
8.2.10.0040.00418.25
8.2.00.0060.00317.64
8.1.280.0110.00725.92
8.1.270.0110.00423.83
8.1.260.0000.00726.35
8.1.250.0000.00728.09
8.1.240.0060.00323.93
8.1.230.0110.00019.15
8.1.220.0000.00917.76
8.1.210.0050.00318.77
8.1.200.0060.00317.35
8.1.190.0080.00017.63
8.1.180.0060.00319.01
8.1.170.0000.00818.58
8.1.160.0030.00521.95
8.1.150.0000.00918.70
8.1.140.0070.00017.53
8.1.130.0040.00417.84
8.1.120.0000.00717.37
8.1.110.0030.00717.48
8.1.100.0040.00417.47
8.1.90.0030.00517.40
8.1.80.0000.00717.39
8.1.70.0040.00417.41
8.1.60.0110.00017.48
8.1.50.0000.00717.43
8.1.40.0040.00417.60
8.1.30.0040.00417.66
8.1.20.0050.00217.51
8.1.10.0020.00517.61
8.1.00.0040.00417.52
8.0.300.0040.00419.14
8.0.290.0000.00817.15
8.0.280.0040.00418.53
8.0.270.0030.00317.16
8.0.260.0000.00617.23
8.0.250.0030.00316.91
8.0.240.0040.00417.04
8.0.230.0070.00016.96
8.0.220.0040.00416.96
8.0.210.0000.00716.86
8.0.200.0000.00616.94
8.0.190.0060.00317.02
8.0.180.0000.00716.86
8.0.170.0000.00817.01
8.0.160.0040.00417.01
8.0.150.0050.00216.81
8.0.140.0040.00416.96
8.0.130.0060.00013.44
8.0.120.0020.00516.99
8.0.110.0000.00716.89
8.0.100.0040.00416.80
8.0.90.0040.00417.02
8.0.80.0060.00916.90
8.0.70.0000.00817.02
8.0.60.0040.00416.98
8.0.50.0070.00016.86
8.0.30.0110.01217.07
8.0.20.0110.00817.40
8.0.10.0040.00417.06
8.0.00.0080.01216.95
7.4.330.0000.00515.00
7.4.320.0000.00616.56
7.4.300.0000.00616.45
7.4.290.0030.00316.55
7.4.280.0030.00516.61
7.4.270.0040.00416.52
7.4.260.0070.00016.53
7.4.250.0030.00316.48
7.4.240.0020.00516.58
7.4.230.0030.00316.57
7.4.220.0120.00316.67
7.4.210.0040.01116.58
7.4.200.0030.00316.44
7.4.190.0030.00316.70
7.4.160.0070.01016.50
7.4.150.0060.01217.40
7.4.140.0090.00817.86
7.4.130.0100.00816.51
7.4.120.0120.00516.46
7.4.110.0110.00716.71
7.4.100.0120.01216.52
7.4.90.0070.01016.68
7.4.80.0120.00919.39
7.4.70.0140.00916.56
7.4.60.0070.01016.70
7.4.50.0000.00816.43
7.4.40.0040.01622.77
7.4.30.0200.00316.59
7.4.00.0060.01115.07
7.3.330.0000.00513.45
7.3.320.0000.00613.47
7.3.310.0020.00516.47
7.3.300.0000.00716.38
7.3.290.0140.00916.49
7.3.280.0070.01016.47
7.3.270.0110.00717.40
7.3.260.0100.01016.79
7.3.250.0100.01016.64
7.3.240.0060.01116.45
7.3.230.0140.00416.68
7.3.210.0120.00916.40
7.3.200.0120.00919.39
7.3.190.0060.01216.55
7.3.180.0080.00816.48
7.3.170.0070.01416.43
7.3.160.0130.01116.68
7.3.120.0070.01114.95
7.3.110.0070.01314.92
7.3.100.0150.00314.77
7.3.90.0090.00614.92
7.3.80.0030.00814.97
7.3.70.0070.00314.91
7.3.60.0040.01114.96
7.3.50.0100.00714.88
7.3.40.0030.01014.90
7.3.30.0040.00814.72
7.3.20.0060.00816.70
7.3.10.0070.00716.67
7.3.00.0000.01016.64
7.2.330.0170.00016.75
7.2.320.0110.01116.77
7.2.310.0130.00416.50
7.2.300.0110.00616.79
7.2.290.0150.00316.59
7.2.250.0100.01015.12
7.2.240.0040.01215.19
7.2.230.0060.00915.10
7.2.220.0030.00715.27
7.2.210.0060.00614.87
7.2.200.0060.00614.73
7.2.190.0120.00314.87
7.2.180.0090.00615.27
7.2.170.0070.00715.24
7.2.00.0140.00719.29
7.1.330.0060.00615.63
7.1.320.0030.00715.84
7.1.310.0030.01015.83
7.1.300.0080.00815.60
7.1.290.0040.00515.89
7.1.280.0040.01115.87
7.1.270.0100.00315.80
7.1.260.0040.00415.84
7.1.100.0050.00518.22
7.1.70.0070.01017.17
7.1.60.0100.01319.46
7.1.50.0030.00916.99
7.1.00.0030.07722.41
7.0.200.0130.00614.98
7.0.140.0000.07022.18
7.0.60.0130.06720.04
7.0.50.0170.04717.80
7.0.40.0030.04720.26
7.0.30.0530.08020.20
7.0.20.0130.05020.09
7.0.10.0000.05320.10
7.0.00.0000.09320.22
5.6.280.0000.07721.00
5.6.210.0030.05720.47
5.6.200.0030.04318.16
5.6.190.0070.08720.59
5.6.180.3470.03320.34
5.6.170.0300.06320.54
5.6.160.0070.08320.50
5.6.150.0030.04018.14
5.6.140.0100.06718.18
5.6.130.0030.08318.18
5.6.120.0000.04321.01
5.6.110.0070.06721.00
5.6.100.0070.08321.04
5.6.90.0100.08021.00
5.6.80.0100.03020.54
5.6.70.3270.03720.54
5.5.350.0070.08020.39
5.5.340.0100.08018.02
5.5.330.0070.04020.57
5.5.320.0300.07020.25
5.5.310.0230.03720.43
5.5.300.0070.03718.08
5.5.290.0070.05717.98
5.5.280.0100.08020.88
5.5.270.0070.05320.77
5.5.260.0130.07020.77
5.5.250.0030.06020.71
5.5.240.0300.06720.13
5.4.450.0800.06319.48
5.4.440.0930.04719.48
5.4.430.0900.07019.46
5.4.420.0700.00019.52
5.4.410.0100.05318.69
5.4.400.0200.06018.83
5.4.390.0200.05318.51
5.4.380.0130.06018.59
5.4.370.0500.05018.75
5.4.360.0300.05718.57
5.4.350.0060.03712.02
5.4.340.0080.03212.02
5.4.320.0040.03912.50
5.4.310.0070.03612.50
5.4.300.0060.04912.50
5.4.290.0100.05412.48
5.4.280.0100.05912.38
5.4.270.0110.04312.38
5.4.260.0090.03712.39
5.4.250.0050.04112.38
5.4.240.0080.03512.38
5.4.230.0070.03912.38
5.4.220.0050.04112.38
5.4.210.0040.04012.38
5.4.200.0060.04012.38
5.4.190.0090.03512.37
5.4.180.0070.04312.37
5.4.170.0060.03612.38
5.4.160.0050.03812.38
5.4.150.0070.03512.37
5.4.140.0060.03912.05
5.4.130.0060.03712.05
5.4.120.0090.03512.00
5.4.110.0090.03512.00
5.4.100.0090.03312.00
5.4.90.0090.04412.00
5.4.80.0040.03912.00
5.4.70.0100.03312.00
5.4.60.0090.05011.99
5.4.50.0050.04311.99
5.4.40.0070.04011.98
5.4.30.0070.04811.98
5.4.20.0080.05311.98
5.4.10.0100.04811.98
5.4.00.0070.05211.47
5.3.290.0090.04112.80
5.3.280.0090.04412.71
5.3.270.0100.05012.73
5.3.260.0100.05512.72
5.3.250.0080.04212.72
5.3.240.0080.03912.72
5.3.230.0100.04412.71
5.3.220.0100.04512.68
5.3.210.0080.04912.68
5.3.200.0080.04312.68
5.3.190.0130.05112.68
5.3.180.0070.04912.67
5.3.170.0070.03712.66
5.3.160.0080.03612.68
5.3.150.0090.04512.67
5.3.140.0060.03812.66
5.3.130.0100.04312.66
5.3.120.0090.04012.66
5.3.110.0100.05312.66
5.3.100.0090.05012.12
5.3.90.0060.03812.11
5.3.80.0160.03812.09
5.3.70.0130.04612.10
5.3.60.0050.05312.09
5.3.50.0070.04312.02
5.3.40.0110.04312.03
5.3.30.0070.04911.99
5.3.20.0050.03711.77
5.3.10.0070.03511.73
5.3.00.0130.06411.72
5.2.170.0080.0429.22
5.2.160.0090.0389.22
5.2.150.0110.0369.23
5.2.140.0080.0459.22
5.2.130.0120.0309.18
5.2.120.0050.0459.18
5.2.110.0060.0299.19
5.2.100.0100.0329.18
5.2.90.0060.0299.18
5.2.80.0070.0329.18
5.2.70.0120.0349.18
5.2.60.0070.0339.13
5.2.50.0060.0349.10
5.2.40.0050.0339.07
5.2.30.0060.0339.05
5.2.20.0070.0369.04
5.2.10.0070.0328.95
5.2.00.0080.0328.81
5.1.60.0040.0358.09
5.1.50.0160.0338.09
5.1.40.0140.0308.07
5.1.30.0070.0368.42
5.1.20.0030.0338.44
5.1.10.0080.0348.17
5.1.00.0070.0368.17
5.0.50.0050.0226.64
5.0.40.0030.0216.51
5.0.30.0040.0326.32
5.0.20.0040.0196.28
5.0.10.0030.0216.27
5.0.00.0040.0306.26
4.4.90.0040.0264.78
4.4.80.0040.0144.75
4.4.70.0040.0144.75
4.4.60.0040.0154.75
4.4.50.0040.0144.77
4.4.40.0030.0254.71
4.4.30.0010.0174.76
4.4.20.0040.0144.84
4.4.10.0020.0164.85
4.4.00.0030.0334.76
4.3.110.0030.0234.66
4.3.100.0030.0224.66
4.3.90.0030.0224.64
4.3.80.0030.0334.58
4.3.70.0030.0224.63
4.3.60.0020.0174.63
4.3.50.0050.0184.63
4.3.40.0030.0254.54
4.3.30.0020.0173.31
4.3.20.0040.0163.29
4.3.10.0020.0183.25
4.3.00.0030.0278.04

preferences:
42.09 ms | 401 KiB | 5 Q