3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { private $x; 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->setX(5); echo $this->getX(); } function setX($valorX){ $this->x = $valorX; } function getX(){ return $this->x; } } $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)
8.3.40.0070.00718.97
8.3.30.0070.00720.20
8.3.20.0080.00018.83
8.3.10.0050.00320.95
8.3.00.0060.00323.53
8.2.170.0140.00322.96
8.2.160.0030.01020.25
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0110.00426.16
8.2.120.0070.00019.95
8.2.110.0110.00019.39
8.2.100.0070.00718.03
8.2.90.0030.00617.75
8.2.80.0050.00318.02
8.2.70.0000.00817.79
8.2.60.0080.00017.90
8.2.50.0040.00418.10
8.2.40.0060.00322.31
8.2.30.0070.00019.35
8.2.20.0040.00417.65
8.2.10.0040.00417.62
8.2.00.0080.00417.80
8.1.270.0040.00423.99
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0100.00020.90
8.1.230.0170.00019.16
8.1.220.0000.00817.78
8.1.210.0040.00418.77
8.1.200.0060.00317.38
8.1.190.0030.00617.13
8.1.180.0030.00618.10
8.1.170.0090.00018.57
8.1.160.0050.00218.80
8.1.150.0080.00018.52
8.1.140.0000.00717.45
8.1.130.0030.00317.77
8.1.120.0040.00417.46
8.1.110.0000.00817.45
8.1.100.0040.00417.44
8.1.90.0000.00717.50
8.1.80.0050.00217.36
8.1.70.0000.00717.38
8.1.60.0000.00917.54
8.1.50.0020.00517.50
8.1.40.0050.00217.40
8.1.30.0040.00417.60
8.1.20.0020.00517.62
8.1.10.0000.00717.58
8.1.00.0040.00417.53
8.0.300.0000.00719.60
8.0.290.0040.00416.75
8.0.280.0030.00318.48
8.0.270.0030.00317.25
8.0.260.0040.00416.85
8.0.250.0040.00416.97
8.0.240.0040.00416.99
8.0.230.0040.00416.95
8.0.220.0000.00716.91
8.0.210.0050.00216.85
8.0.200.0060.00017.03
8.0.190.0030.00716.95
8.0.180.0050.00316.94
8.0.170.0000.00816.93
8.0.160.0000.00717.00
8.0.150.0040.00316.81
8.0.140.0000.00816.83
8.0.130.0050.00013.40
8.0.120.0000.00816.75
8.0.110.0000.00716.89
8.0.100.0040.00416.77
8.0.90.0040.00416.91
8.0.80.0070.00716.91
8.0.70.0040.00416.78
8.0.60.0000.00716.95
8.0.50.0070.00016.79
8.0.30.0130.00717.14
8.0.20.0070.01117.40
8.0.10.0040.00417.00
8.0.00.0100.00916.60
7.4.330.0030.00316.74
7.4.320.0030.00316.54
7.4.300.0040.00416.58
7.4.290.0060.00016.49
7.4.280.0040.00816.44
7.4.270.0000.00816.57
7.4.260.0000.00513.23
7.4.250.0030.00516.61
7.4.240.0080.00016.54
7.4.230.0030.00316.64
7.4.220.0030.01516.59
7.4.210.0060.00816.55
7.4.200.0030.00316.36
7.4.190.0030.00616.53
7.4.160.0160.00316.55
7.4.150.0100.00717.40
7.4.140.0100.00917.86
7.4.130.0080.00816.38
7.4.120.0120.00516.50
7.4.110.0060.01216.61
7.4.100.0080.00816.40
7.4.90.0100.01316.37
7.4.80.0060.01419.39
7.4.70.0160.00416.47
7.4.60.0130.00616.45
7.4.50.0030.00516.25
7.4.40.0030.01322.77
7.4.30.0100.00716.32
7.4.00.0070.00714.67
7.3.330.0030.00313.26
7.3.320.0060.00013.30
7.3.310.0050.00216.38
7.3.300.0030.00316.27
7.3.290.0100.01016.28
7.3.280.0130.00716.35
7.3.270.0060.01317.40
7.3.260.0080.01018.24
7.3.250.0130.00516.32
7.3.240.0090.01416.63
7.3.230.0060.01816.39
7.3.210.0060.01316.52
7.3.200.0080.01519.39
7.3.190.0110.00616.64
7.3.180.0120.00416.32
7.3.170.0130.00716.34
7.3.160.0090.00616.38
7.3.120.0070.01014.95
7.2.330.0140.00316.86
7.2.320.0160.00616.67
7.2.310.0120.00816.81
7.2.300.0110.01016.50
7.2.290.0120.00616.71
7.1.70.0000.00717.22
7.1.60.0100.01419.17
7.1.50.0100.01316.65
7.1.00.0000.07722.36
7.0.200.0070.00416.73
7.0.140.0030.07322.00
7.0.100.0270.08320.07
7.0.90.0070.08719.93
7.0.80.0230.08319.94
7.0.70.0070.05019.90
7.0.60.0070.08019.98
7.0.50.0030.08320.34
7.0.40.0030.08720.05
7.0.30.0100.07720.05
7.0.20.0100.05020.14
7.0.10.0130.07720.10
7.0.00.0100.07020.07
5.6.280.0100.06720.89
5.6.250.0030.04720.76
5.6.240.0030.09020.54
5.6.230.0070.09020.70
5.6.220.0170.07320.50
5.6.210.0070.06020.69
5.6.200.0100.05021.02
5.6.190.0130.08321.05
5.6.180.0100.08020.99
5.6.170.0030.05021.04
5.6.160.0030.09021.06
5.6.150.0100.07721.14
5.6.140.0100.07321.02
5.6.130.0100.07720.96
5.6.120.0070.08321.02
5.6.110.0100.08321.07
5.6.100.0100.08321.02
5.6.90.0100.04721.05
5.6.80.0130.08020.44
5.6.70.0100.07720.40
5.6.60.0070.04720.48
5.6.50.0100.08020.32
5.6.40.0070.08720.47
5.6.30.0130.05720.39
5.6.20.0000.09020.29
5.6.10.0130.07320.46
5.6.00.0030.08720.30
5.5.380.0070.07020.36
5.5.370.0030.05020.38
5.5.360.0100.08020.35
5.5.350.0000.04720.47
5.5.340.0170.06020.94
5.5.330.0070.08020.85
5.5.320.0100.08320.94
5.5.310.0000.08720.78
5.5.300.0070.08720.80
5.5.290.0030.06320.83
5.5.280.0070.09320.64
5.5.270.0070.05320.77
5.5.260.0070.08320.80
5.5.250.0130.05320.58
5.5.240.0100.07720.30
5.5.230.0100.05320.29
5.5.220.0030.04720.11
5.5.210.0170.06020.27
5.5.200.0230.03020.13
5.5.190.0070.08720.25
5.5.180.0030.07720.18
5.5.160.0100.08320.13
5.5.150.0100.08020.18
5.5.140.0000.07720.22
5.5.130.0100.08020.27
5.5.120.0070.04320.27
5.5.110.0070.08020.18
5.5.100.0130.07319.96
5.5.90.0030.06720.16
5.5.80.0130.07020.11
5.5.70.0100.07720.16
5.5.60.0170.06320.04
5.5.50.0130.07019.97
5.5.40.0130.06320.09
5.5.30.0170.07019.99
5.5.20.0030.06020.13
5.5.10.0070.08020.05
5.5.00.0100.07720.05
5.4.450.0100.06319.23
5.4.440.0100.07719.45
5.4.430.0170.08019.46
5.4.420.0170.07719.36
5.4.410.0030.05319.44
5.4.400.0000.07719.23
5.4.390.0100.04019.03
5.4.380.0200.06319.21
5.4.370.0100.03719.03
5.4.360.0130.05318.90
5.4.350.0130.06019.16
5.4.340.0100.08319.14
5.4.320.0070.08319.23
5.4.310.0070.07719.04
5.4.300.0100.04018.94
5.4.290.0100.07019.12
5.4.280.0200.03019.04
5.4.270.0130.06019.02
5.4.260.0200.04719.14
5.4.250.0100.06019.08
5.4.240.0030.07319.11
5.4.230.0200.06019.22
5.4.220.0070.07719.15
5.4.210.0100.03719.15
5.4.200.0100.04719.20
5.4.190.0070.06319.12
5.4.180.0170.06318.86
5.4.170.0030.07718.93
5.4.160.0070.05018.82
5.4.150.0100.08019.14
5.4.140.0170.03316.20
5.4.130.0070.06016.42
5.4.120.0070.04016.33
5.4.110.0070.07016.46
5.4.100.0070.07016.27
5.4.90.0170.03316.38
5.4.80.0030.05316.33
5.4.70.0130.06316.45
5.4.60.0100.07316.30
5.4.50.0170.06716.39
5.4.40.0070.07716.32
5.4.30.0000.07016.29
5.4.20.0170.06716.39
5.4.10.0000.07716.46
5.4.00.0100.03715.86
5.3.290.0070.08314.73
5.3.280.0130.07014.53
5.3.270.0170.06714.70
5.3.260.0030.05014.75
5.3.250.0070.04314.67
5.3.240.0070.06314.75
5.3.230.0070.07314.55
5.3.220.0100.07014.63
5.3.210.0100.07314.61
5.3.200.0130.06314.52
5.3.190.0070.06314.57
5.3.180.0070.06714.63
5.3.170.0030.09014.52
5.3.160.0030.06714.56
5.3.150.0000.08714.66
5.3.140.0070.07014.62
5.3.130.0000.04714.62
5.3.120.0130.05314.49
5.3.110.0030.07314.62
5.3.100.0070.03314.09
5.3.90.0030.08014.05
5.3.80.0100.05314.13
5.3.70.0100.07014.07
5.3.60.0000.06714.10
5.3.50.0100.07014.05
5.3.40.0070.07014.00
5.3.30.0000.05713.84
5.3.20.0000.07013.62
5.3.10.0070.05313.58
5.3.00.0030.07313.64
5.2.170.0030.05311.75
5.2.160.0030.06311.75
5.2.150.0000.04011.75
5.2.140.0030.06311.75
5.2.130.0000.06311.75
5.2.120.0030.03311.75
5.2.110.0100.05711.75
5.2.100.0100.05711.75
5.2.90.0030.03311.75
5.2.80.0070.06011.75
5.2.70.0000.06711.75
5.2.60.0100.03711.75
5.2.50.0000.06311.75
5.2.40.0030.05711.75
5.2.30.0000.05011.75
5.2.20.0030.06311.75
5.2.10.0030.07011.75
5.2.00.0070.06711.75
5.1.60.0030.04711.75
5.1.50.0030.05311.75
5.1.40.0100.04311.75
5.1.30.0000.03311.75
5.1.20.0130.04711.75
5.1.10.0070.05011.75
5.1.00.0100.04011.75
5.0.50.0070.03011.75
5.0.40.0070.03311.75
5.0.30.0000.04011.75
5.0.20.0030.04311.75
5.0.10.0030.04311.75
5.0.00.0000.05011.75
4.4.90.0030.03011.75
4.4.80.0030.03311.75
4.4.70.0000.03711.75
4.4.60.0030.02311.75
4.4.50.0000.04011.75
4.4.40.0030.02311.75
4.4.30.0030.02011.75
4.4.20.0030.01711.75
4.4.10.0000.02311.75
4.4.00.0030.05311.75
4.3.110.0070.02311.75
4.3.100.0000.03711.75
4.3.90.0070.03011.75
4.3.80.0030.04711.75
4.3.70.0030.03011.75
4.3.60.0030.03011.75
4.3.50.0030.03311.75
4.3.40.0000.03711.75
4.3.30.0000.03011.75
4.3.20.0000.02311.75
4.3.10.0070.03011.75
4.3.00.0000.03311.75

preferences:
45.88 ms | 400 KiB | 5 Q