3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { public function setConfigParam( $sName, $sValue ) { if ( isset( $this->$sName ) ) { $this->$sName = $sValue; } else { $this->_aConfigParams[$sName] = $sValue; } } 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; } } $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)
8.3.60.0120.00316.50
8.3.50.0080.01222.05
8.3.40.0120.00619.02
8.3.30.0110.00419.06
8.3.20.0040.00420.14
8.3.10.0000.00823.51
8.3.00.0080.00019.50
8.2.180.0070.01016.88
8.2.170.0060.00922.96
8.2.160.0070.00720.38
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0030.00526.16
8.2.120.0040.00422.31
8.2.110.0000.01022.05
8.2.100.0090.00317.78
8.2.90.0000.00819.22
8.2.80.0040.00417.97
8.2.70.0080.00017.63
8.2.60.0000.00917.93
8.2.50.0070.00318.07
8.2.40.0040.00418.16
8.2.30.0040.00417.99
8.2.20.0040.00417.78
8.2.10.0000.00718.08
8.2.00.0060.00317.69
8.1.280.0070.00725.92
8.1.270.0060.00323.85
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00023.82
8.1.230.0100.00319.00
8.1.220.0050.00317.74
8.1.210.0050.00318.77
8.1.200.0080.00317.35
8.1.190.0080.00017.40
8.1.180.0040.00718.10
8.1.170.0000.00818.59
8.1.160.0040.00421.90
8.1.150.0050.00318.69
8.1.140.0040.00417.46
8.1.130.0040.00417.75
8.1.120.0000.00717.45
8.1.110.0040.00717.48
8.1.100.0060.00317.39
8.1.90.0040.00417.46
8.1.80.0030.00317.47
8.1.70.0000.00717.44
8.1.60.0040.00717.50
8.1.50.0050.00317.40
8.1.40.0040.00417.46
8.1.30.0030.00517.69
8.1.20.0040.00417.61
8.1.10.0000.00817.46
8.1.00.0040.00417.45
8.0.300.0040.00418.77
8.0.290.0070.00017.05
8.0.280.0040.00418.45
8.0.270.0030.00317.28
8.0.260.0000.00617.20
8.0.250.0080.00016.92
8.0.240.0030.00317.04
8.0.230.0070.00017.05
8.0.220.0000.00716.97
8.0.210.0030.00317.00
8.0.200.0000.00617.00
8.0.190.0030.00616.90
8.0.180.0040.00416.89
8.0.170.0000.00917.05
8.0.160.0050.00317.02
8.0.150.0000.00716.89
8.0.140.0040.00416.92
8.0.130.0000.00513.44
8.0.120.0030.00516.92
8.0.110.0000.00716.93
8.0.100.0080.00016.82
8.0.90.0000.00716.75
8.0.80.0150.00616.97
8.0.70.0070.00016.87
8.0.60.0040.00417.07
8.0.50.0040.00416.86
8.0.30.0110.00817.24
8.0.20.0090.00917.40
8.0.10.0040.00416.95
8.0.00.0080.01116.80
7.4.330.0000.00515.00
7.4.320.0040.00416.35
7.4.300.0060.00016.48
7.4.290.0030.00316.50
7.4.280.0030.00616.51
7.4.270.0000.00716.54
7.4.260.0080.00016.48
7.4.250.0000.00716.39
7.4.240.0020.00516.55
7.4.230.0040.00416.71
7.4.220.0060.01016.63
7.4.210.0080.00716.60
7.4.200.0030.00316.51
7.4.190.0050.00216.62
7.4.160.0110.00516.40
7.4.150.0070.01117.40
7.4.140.0090.01317.86
7.4.130.0060.01016.53
7.4.120.0090.00816.59
7.4.110.0090.00916.59
7.4.100.0160.00316.57
7.4.90.0100.00816.51
7.4.80.0080.00819.39
7.4.70.0060.01116.55
7.4.60.0040.01216.59
7.4.50.0040.00416.63
7.4.40.0140.00322.77
7.4.30.0060.01116.51
7.4.00.0070.01014.97
7.3.330.0000.00513.29
7.3.320.0030.00313.37
7.3.310.0070.00016.49
7.3.300.0000.00716.30
7.3.290.0030.01116.35
7.3.280.0120.00516.41
7.3.270.0070.01017.40
7.3.260.0090.00916.50
7.3.250.0090.01116.54
7.3.240.0000.01616.43
7.3.230.0090.00616.39
7.3.210.0070.01516.55
7.3.200.0060.01819.39
7.3.190.0120.00616.38
7.3.180.0140.00516.37
7.3.170.0070.01116.60
7.3.160.0130.01016.48
7.3.120.0060.00315.15
7.2.330.0090.00916.41
7.2.320.0170.00716.40
7.2.310.0090.00916.75
7.2.300.0090.00816.45
7.2.290.0060.00916.43
7.2.60.0100.00316.80
7.2.00.0100.01019.38
7.1.200.0040.00415.82
7.1.100.0000.01018.34
7.1.70.0090.00616.87
7.1.60.0110.01419.46
7.1.50.0040.00717.00
7.1.00.0070.07322.26
7.0.200.0360.00314.84
7.0.140.0070.07022.07
7.0.60.0100.08020.00
7.0.50.0130.07317.90
7.0.40.0130.07020.18
7.0.30.0230.04020.33
7.0.20.0330.07320.19
7.0.10.0070.09020.10
7.0.00.0070.04020.05
5.6.280.0000.07721.08
5.6.210.0070.08020.77
5.6.200.0070.08018.18
5.6.190.0070.04720.55
5.6.180.0230.04020.61
5.6.170.0230.07720.57
5.6.160.0130.07320.52
5.6.150.0030.08018.19
5.6.140.0000.04018.21
5.6.130.0000.05318.11
5.6.120.0030.04721.15
5.6.110.0130.07321.11
5.6.100.0070.07320.99
5.6.90.0170.04321.11
5.6.80.0100.04320.41
5.5.350.0270.02720.38
5.5.340.0000.04317.99
5.5.330.0070.08320.46
5.5.320.0200.07720.27
5.5.310.0270.05020.32
5.5.300.0100.08018.07
5.5.290.0070.04317.98
5.5.280.0070.06020.88
5.5.270.0130.08020.88
5.5.260.0100.07720.88
5.5.250.0030.08020.79
5.5.240.0030.08020.24
5.4.450.0730.04019.41
5.4.440.0770.03019.20
5.4.430.1270.03319.19
5.4.420.0900.03719.45
5.4.410.0500.04019.44
5.4.400.0730.04319.27
5.4.390.0200.04319.04
5.4.380.0430.06018.73
5.4.370.0500.05018.80
5.4.360.0370.05018.57
5.4.350.0400.07018.72
5.4.340.0370.05018.78
5.4.320.0050.05012.51
5.4.310.0050.03912.50
5.4.300.0090.03812.50
5.4.290.0090.04212.48
5.4.280.0100.03712.38
5.4.270.0080.04312.38
5.4.260.0100.04212.38
5.4.250.0120.05312.39
5.4.240.0090.04812.39
5.4.230.0100.03912.37
5.4.220.0090.04012.37
5.4.210.0070.04112.37
5.4.200.0090.04812.38
5.4.190.0070.05112.37
5.4.180.0040.04112.37
5.4.170.0110.03412.38
5.4.160.0050.04112.38
5.4.150.0060.03912.38
5.4.140.0090.05312.06
5.4.130.0070.05212.05
5.4.120.0110.04512.00
5.4.110.0150.03212.00
5.4.100.0160.03512.00
5.4.90.0110.03912.00
5.4.80.0080.03812.00
5.4.70.0070.03712.00
5.4.60.0080.03812.00
5.4.50.0070.04312.00
5.4.40.0090.04811.99
5.4.30.0120.04711.98
5.4.20.0100.04611.98
5.4.10.0090.04511.98
5.4.00.0090.04611.47
5.3.290.0060.04712.80
5.3.280.0110.04512.71
5.3.270.0070.04812.73
5.3.260.0090.04712.72
5.3.250.0100.06012.72
5.3.240.0080.05312.71
5.3.230.0120.05112.71
5.3.220.0120.05212.68
5.3.210.0110.05012.68
5.3.200.0120.05012.68
5.3.190.0150.04912.68
5.3.180.0110.04712.67
5.3.170.0090.04612.67
5.3.160.0070.05212.67
5.3.150.0070.04412.67
5.3.140.0070.04412.66
5.3.130.0100.05512.66
5.3.120.0200.05012.66
5.3.110.0090.04312.66
5.3.100.0070.04112.13
5.3.90.0080.03912.11
5.3.80.0110.05112.11
5.3.70.0090.04812.10
5.3.60.0080.04712.09
5.3.50.0120.05612.04
5.3.40.0070.05312.04
5.3.30.0150.05111.99
5.3.20.0100.04911.78
5.3.10.0090.05511.74
5.3.00.0070.05311.73
5.2.170.0010.0429.23
5.2.160.0070.0479.23
5.2.150.0050.0469.23
5.2.140.0060.0429.23
5.2.130.0100.0379.19
5.2.120.0130.0349.19
5.2.110.0070.0429.19
5.2.100.0050.0459.19
5.2.90.0120.0479.18
5.2.80.0110.0449.18
5.2.70.0070.0469.18
5.2.60.0080.0469.14
5.2.50.0080.0499.11
5.2.40.0080.0469.09
5.2.30.0080.0589.05
5.2.20.0020.0449.04
5.2.10.0070.0388.95
5.2.00.0070.0418.82
5.1.60.0070.0348.10
5.1.50.0030.0378.09
5.1.40.0050.0368.07
5.1.30.0060.0388.42
5.1.20.0080.0378.45
5.1.10.0080.0358.17
5.1.00.0030.0418.17
5.0.50.0020.0326.65
5.0.40.0050.0356.51
5.0.30.0060.0386.32
5.0.20.0070.0186.29
5.0.10.0020.0276.27
5.0.00.0050.0406.26
4.4.90.0070.0214.78
4.4.80.0070.0214.76
4.4.70.0070.0204.75
4.4.60.0040.0214.75
4.4.50.0050.0154.77
4.4.40.0020.0294.70
4.4.30.0060.0144.76
4.4.20.0030.0204.84
4.4.10.0060.0174.85
4.4.00.0050.0344.76
4.3.110.0050.0224.67
4.3.100.0030.0234.67
4.3.90.0050.0204.64
4.3.80.0050.0324.59
4.3.70.0030.0234.63
4.3.60.0030.0234.63
4.3.50.0030.0234.63
4.3.40.0050.0324.54
4.3.30.0050.0213.30
4.3.20.0040.0223.28
4.3.10.0040.0213.24
4.3.00.0200.02013.47

preferences:
88.8 ms | 401 KiB | 5 Q