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 $this->{"val"}; setX(5); echo getX(); } function setX($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)
8.3.60.0090.00618.52
8.3.50.0120.00721.14
8.3.40.0120.00318.79
8.3.30.0070.01120.17
8.3.20.0080.00018.73
8.3.10.0040.00421.06
8.3.00.0040.00423.60
8.2.180.0070.00716.50
8.2.170.0120.00922.96
8.2.160.0100.00320.52
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0060.00926.16
8.2.120.0040.00419.96
8.2.110.0060.00321.08
8.2.100.0120.00017.85
8.2.90.0000.00817.63
8.2.80.0050.00318.05
8.2.70.0050.00317.78
8.2.60.0040.00418.04
8.2.50.0000.00818.10
8.2.40.0060.00322.36
8.2.30.0040.00419.47
8.2.20.0000.00817.72
8.2.10.0030.00517.67
8.2.00.0070.00517.67
8.1.280.0070.00725.92
8.1.270.0040.00423.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.88
8.1.230.0090.00320.97
8.1.220.0080.00017.78
8.1.210.0050.00518.77
8.1.200.0090.00017.23
8.1.190.0030.00517.10
8.1.180.0030.00518.10
8.1.170.0080.00018.59
8.1.160.0070.00018.88
8.1.150.0000.00718.55
8.1.140.0040.00417.52
8.1.130.0000.00717.82
8.1.120.0030.00617.43
8.1.110.0070.00017.35
8.1.100.0070.00017.42
8.1.90.0040.00417.42
8.1.80.0000.00717.45
8.1.70.0000.00717.45
8.1.60.0000.00817.59
8.1.50.0000.00817.41
8.1.40.0000.00717.54
8.1.30.0040.00417.70
8.1.20.0040.00417.65
8.1.10.0040.00417.56
8.1.00.0040.00417.54
8.0.300.0040.00420.16
8.0.290.0000.00816.75
8.0.280.0030.00318.43
8.0.270.0030.00317.27
8.0.260.0000.00716.86
8.0.250.0000.00717.00
8.0.240.0040.00417.04
8.0.230.0040.00417.01
8.0.220.0030.00317.00
8.0.210.0020.00516.83
8.0.200.0000.00617.01
8.0.190.0000.01116.97
8.0.180.0080.00017.00
8.0.170.0040.00416.80
8.0.160.0000.00716.94
8.0.150.0070.00016.99
8.0.140.0040.00416.95
8.0.130.0050.00013.42
8.0.120.0040.00416.82
8.0.110.0000.00716.99
8.0.100.0080.00016.82
8.0.90.0040.00417.00
8.0.80.0140.00316.97
8.0.70.0000.00716.86
8.0.60.0000.00716.89
8.0.50.0040.00416.83
8.0.30.0060.01316.95
8.0.20.0110.00817.40
8.0.10.0060.00316.98
8.0.00.0130.00916.79
7.4.330.0050.00016.77
7.4.320.0000.00716.34
7.4.300.0030.00716.61
7.4.290.0000.00716.55
7.4.280.0000.00916.61
7.4.270.0000.00716.57
7.4.260.0030.00313.17
7.4.250.0060.00316.45
7.4.240.0040.00416.50
7.4.230.0030.00316.43
7.4.220.0160.00316.65
7.4.210.0080.00916.61
7.4.200.0000.00716.34
7.4.190.0040.00416.45
7.4.160.0000.01816.52
7.4.150.0120.00617.40
7.4.140.0120.00817.86
7.4.130.0070.01016.48
7.4.120.0110.00516.57
7.4.110.0090.00916.48
7.4.100.0110.00616.40
7.4.90.0070.01716.59
7.4.80.0070.01119.39
7.4.70.0110.00616.49
7.4.60.0000.01516.50
7.4.50.0050.00316.20
7.4.40.0030.01422.77
7.4.30.0080.00816.38
7.4.00.0080.00614.78
7.3.330.0000.00613.43
7.3.320.0060.00013.38
7.3.310.0050.00216.27
7.3.300.0040.00416.34
7.3.290.0030.01116.44
7.3.280.0090.00916.43
7.3.270.0130.00717.40
7.3.260.0110.00818.24
7.3.250.0100.01016.58
7.3.240.0110.00716.46
7.3.230.0110.00716.39
7.3.210.0090.00916.43
7.3.200.0110.01019.39
7.3.190.0030.01616.28
7.3.180.0080.00816.36
7.3.170.0130.00816.45
7.3.160.0060.01216.36
7.3.120.0090.00315.11
7.2.330.0090.00916.50
7.2.320.0130.00316.57
7.2.310.0050.01316.27
7.2.300.0060.00916.51
7.2.290.0040.01816.72
7.2.80.0040.00816.52
7.2.60.0100.00316.70
7.2.00.0040.00919.21
7.1.200.0070.00315.80
7.1.100.0000.01118.00
7.1.70.0000.00817.20
7.1.60.0070.01419.17
7.1.50.0090.01216.57
7.1.00.0000.06022.57
7.0.200.0000.00816.93
7.0.140.0070.07022.12
7.0.60.0100.06019.94
7.0.50.0100.08017.73
7.0.40.0170.08020.14
7.0.30.0270.07720.19
7.0.20.0270.07020.22
7.0.10.0070.08720.10
7.0.00.0100.04320.30
5.6.280.0070.07021.04
5.6.210.0070.08320.48
5.6.200.0030.08318.15
5.6.190.0000.04720.48
5.6.180.0270.08020.52
5.6.170.0230.05320.44
5.6.160.0070.04320.46
5.6.150.0200.07718.22
5.6.140.0030.04318.15
5.6.130.0130.08018.19
5.6.120.0200.07321.00
5.6.110.0100.07721.03
5.6.100.0170.07320.99
5.6.90.0030.08320.99
5.6.80.0030.08020.38
5.5.350.0200.07720.34
5.5.340.0170.07318.09
5.5.330.0070.04320.44
5.5.320.0000.04320.31
5.5.310.0370.07020.30
5.5.300.0070.04317.98
5.5.290.0030.08318.01
5.5.280.0100.04720.66
5.5.270.0030.04020.80
5.5.260.0030.08320.90
5.5.250.0030.04020.71
5.5.240.0270.07020.27
5.4.450.4070.04019.55
5.4.440.0030.05719.31
5.4.430.1500.04319.36
5.4.420.3930.04019.54
5.4.410.4770.03319.43
5.4.400.4130.03719.18
5.4.390.4100.03719.23
5.4.380.3900.04019.23
5.4.370.4400.04019.14
5.4.360.4570.03319.05
5.4.350.3770.03719.19
5.4.340.4170.04018.95
5.4.320.4230.03718.97
5.4.310.2500.03319.22
5.4.300.2330.03718.94
5.4.290.3500.04319.23
5.4.280.2470.03718.95
5.4.270.2900.03719.26
5.4.260.3100.04019.22
5.4.250.1370.04018.94
5.4.240.0870.04319.21
5.4.230.0030.03719.12
5.4.220.3030.03019.19
5.4.210.3000.03718.96
5.4.200.4270.03019.25
5.4.190.4070.03718.96
5.4.180.3770.03719.18
5.4.170.3800.03718.98
5.4.160.4030.04018.97
5.4.150.4030.03719.24
5.4.140.0800.05316.41
5.4.130.0070.07316.43
5.4.120.1500.04016.45
5.4.110.3730.03716.52
5.4.100.4130.03716.35
5.4.90.4400.04016.48
5.4.80.4130.03316.31
5.4.70.3800.03716.46
5.4.60.4130.03316.53
5.4.50.4400.03716.43
5.4.40.4630.03316.43
5.4.30.4100.03716.48
5.4.20.3700.03016.32
5.4.10.4030.03316.20
5.4.00.4000.03315.86
5.3.290.2170.03714.67
5.3.280.1370.03314.61
5.3.270.4100.03714.66
5.3.260.3570.04014.61
5.3.250.3970.03714.77
5.3.240.4230.03314.66
5.3.230.0030.04314.60
5.3.220.4030.03714.57
5.3.210.4900.04014.64
5.3.200.4600.03714.60
5.3.190.4030.03714.64
5.3.180.4070.03314.49
5.3.170.4170.03314.49
5.3.160.3800.03314.62
5.3.150.4400.03314.58
5.3.140.4300.02014.60
5.3.130.4070.03714.60
5.3.120.3230.03314.57
5.3.110.3800.03714.56
5.3.100.3300.04314.20
5.3.90.3830.03713.91
5.3.80.3500.04014.09
5.3.70.4070.04014.16
5.3.60.3870.03714.02
5.3.50.3830.03014.00
5.3.40.3470.03314.11
5.3.30.4070.03713.91
5.3.20.4430.02713.70
5.3.10.3630.03713.66
5.3.00.3800.04013.68
5.2.170.2900.02311.11
5.2.160.3300.02711.11
5.2.150.3430.03311.31
5.2.140.3530.03011.16
5.2.130.3130.03311.26
5.2.120.3270.03011.17
5.2.110.3130.03011.10
5.2.100.3000.02711.19
5.2.90.3400.03311.04
5.2.80.3230.02711.09
5.2.70.3430.03311.25
5.2.60.3130.03011.00
5.2.50.3270.02310.99
5.2.40.2500.03311.05
5.2.30.2530.03311.05
5.2.20.2700.03310.95
5.2.10.1970.02710.91
5.2.00.2470.03010.76
5.1.60.2570.01310.14
5.1.50.2670.02710.01
5.1.40.2830.0239.99
5.1.30.2670.03010.38
5.1.20.2600.02710.35
5.1.10.2800.02710.21
5.1.00.2870.0279.98
5.0.50.1770.0178.48
5.0.40.1500.0238.41
5.0.30.1500.0278.22
5.0.20.1570.0208.16
5.0.10.1230.0208.19
5.0.00.1430.0338.25
4.4.90.1370.0076.88
4.4.80.1370.0136.88
4.4.70.1500.0176.88
4.4.60.1270.0136.88
4.4.50.1500.0176.88
4.4.40.1500.0236.88
4.4.30.1470.0176.88
4.4.20.1200.0176.88
4.4.10.1670.0206.88
4.4.00.1630.0236.88
4.3.110.1770.0176.88
4.3.100.1770.0176.88
4.3.90.1600.0176.88
4.3.80.1430.0206.88
4.3.70.1430.0206.88
4.3.60.1300.0106.88
4.3.50.1570.0176.88
4.3.40.1470.0236.88
4.3.30.0870.0236.88
4.3.20.0870.0176.88
4.3.10.0630.0176.88
4.3.00.0670.0176.88

preferences:
50.8 ms | 401 KiB | 5 Q