3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { function __construct() { $this->a = "hello"; $this->b = "hif"; $this->val = "hoswdy"; $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"}; } } $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)
8.3.70.0120.00318.55
8.3.60.0140.00718.56
8.3.50.0110.00821.02
8.3.40.0140.00018.76
8.3.30.0090.00919.04
8.3.20.0070.00020.30
8.3.10.0000.00821.96
8.3.00.0050.00322.27
8.2.190.0140.00416.58
8.2.180.0030.01816.38
8.2.170.0100.00722.96
8.2.160.0030.01219.25
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0110.00726.16
8.2.120.0000.00819.53
8.2.110.0040.00419.27
8.2.100.0090.00317.91
8.2.90.0000.00819.05
8.2.80.0080.00017.97
8.2.70.0040.00417.50
8.2.60.0040.00417.90
8.2.50.0050.00318.07
8.2.40.0050.00318.16
8.2.30.0040.00417.95
8.2.20.0040.00417.70
8.2.10.0000.00817.66
8.2.00.0050.00317.75
8.1.280.0070.00725.92
8.1.270.0040.00422.06
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0000.00921.26
8.1.230.0080.00417.42
8.1.220.0000.00717.79
8.1.210.0030.00518.77
8.1.200.0080.00417.35
8.1.190.0040.00417.22
8.1.180.0080.00020.52
8.1.170.0030.00518.46
8.1.160.0030.00622.02
8.1.150.0040.00418.53
8.1.140.0040.00417.40
8.1.130.0000.00717.74
8.1.120.0040.00317.37
8.1.110.0040.00417.48
8.1.100.0040.00417.46
8.1.90.0090.00017.47
8.1.80.0040.00317.46
8.1.70.0000.00717.43
8.1.60.0070.00317.58
8.1.50.0040.00417.58
8.1.40.0050.00317.52
8.1.30.0000.00717.63
8.1.20.0060.00317.75
8.1.10.0000.00817.57
8.1.00.0030.00517.52
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.50
8.0.270.0030.00517.16
8.0.260.0060.00016.88
8.0.250.0000.00616.89
8.0.240.0030.00616.84
8.0.230.0040.00416.88
8.0.220.0030.00316.80
8.0.210.0070.00016.89
8.0.200.0030.00316.82
8.0.190.0000.00716.92
8.0.180.0070.00016.92
8.0.170.0040.00416.98
8.0.160.0050.00316.85
8.0.150.0000.00716.73
8.0.140.0040.00416.88
8.0.130.0080.00013.36
8.0.120.0000.00816.69
8.0.110.0000.00716.93
8.0.100.0040.00316.93
8.0.90.0040.00416.92
8.0.80.0080.00816.85
8.0.70.0040.00416.75
8.0.60.0000.00716.71
8.0.50.0080.00016.86
8.0.30.0120.00717.03
8.0.20.0130.00717.40
8.0.10.0080.00016.91
8.0.00.0090.00816.65
7.4.330.0020.00215.00
7.4.320.0070.00016.58
7.4.300.0000.00616.60
7.4.290.0030.00316.64
7.4.280.0040.00416.57
7.4.270.0000.00716.61
7.4.260.0000.00816.56
7.4.250.0050.00316.45
7.4.240.0070.00016.53
7.4.230.0030.00316.48
7.4.220.0120.00316.53
7.4.210.0060.01016.59
7.4.200.0000.00616.57
7.4.190.0030.00316.47
7.4.160.0120.00616.40
7.4.150.0100.01417.40
7.4.140.0110.00817.86
7.4.130.0060.01016.42
7.4.120.0090.01116.49
7.4.110.0100.00616.50
7.4.100.0190.00316.41
7.4.90.0030.01316.52
7.4.80.0030.01319.39
7.4.70.0140.00416.50
7.4.60.0150.00616.59
7.4.50.0000.00416.37
7.4.40.0030.01322.77
7.4.30.0130.00316.57
7.4.00.0030.00615.02
7.3.330.0060.00013.23
7.3.320.0020.00213.32
7.3.310.0030.00316.41
7.3.300.0030.00316.38
7.3.290.0110.00316.36
7.3.280.0100.00716.34
7.3.270.0150.00917.40
7.3.260.0110.00516.32
7.3.250.0080.01416.49
7.3.240.0090.00916.30
7.3.230.0100.01316.39
7.3.210.0080.01216.64
7.3.200.0080.00819.39
7.3.190.0060.01416.65
7.3.180.0050.01116.45
7.3.170.0000.01616.32
7.3.160.0000.01516.36
7.3.120.0070.01014.79
7.2.330.0090.00916.76
7.2.320.0100.00716.61
7.2.310.0030.01316.79
7.2.300.0120.00616.75
7.2.290.0130.00316.89
7.2.60.0040.01116.77
7.2.00.0030.01019.61
7.1.200.0040.00815.86
7.1.100.0280.00917.96
7.1.70.0070.00317.18
7.1.60.0040.01919.82
7.1.50.0060.01616.72
7.1.00.0070.07322.54
7.0.200.0030.00316.67
7.0.140.0130.06722.07
7.0.60.0000.09319.94
7.0.50.0030.04717.79
7.0.40.0100.04720.18
7.0.30.0270.06020.34
7.0.20.0270.05020.23
7.0.10.0130.10020.26
7.0.00.0100.08320.22
5.6.280.0030.07320.77
5.6.210.0030.06020.54
5.6.200.0030.04318.25
5.6.190.0070.07020.47
5.6.180.0200.04020.57
5.6.170.0330.04720.55
5.6.160.0100.08720.50
5.6.150.0070.08018.21
5.6.140.0070.08018.21
5.6.130.0170.04318.18
5.6.120.0100.06320.99
5.6.110.0070.08321.11
5.6.100.0230.06320.98
5.6.90.0070.04721.00
5.6.80.0030.08320.38
5.5.350.0230.03320.43
5.5.340.0000.06718.09
5.5.330.0030.09020.32
5.5.320.0130.04720.32
5.5.310.0200.08320.30
5.5.300.0100.06717.99
5.5.290.0100.05317.98
5.5.280.0100.08320.77
5.5.270.0100.04320.83
5.5.260.0170.07720.68
5.5.250.0000.07320.55
5.5.240.0030.05320.26
5.4.450.0900.05019.57
5.4.440.0200.06319.38
5.4.430.0030.06019.52
5.4.420.0100.06019.42
5.4.410.0130.05318.92
5.4.400.0130.05318.77
5.4.390.0130.06018.46
5.4.380.0100.05318.79
5.4.370.0100.05718.73
5.4.360.0200.05018.69
5.4.350.0200.05018.46
5.4.340.0130.05318.47
5.4.320.0050.03712.50
5.4.310.0050.03912.49
5.4.300.0030.04112.50
5.4.290.0040.04112.50
5.4.280.0050.03712.39
5.4.270.0040.03812.39
5.4.260.0100.07019.02
5.4.250.0230.05318.84
5.4.240.0130.06319.09
5.4.230.0130.07319.02
5.4.220.0170.05019.09
5.4.210.0070.05718.83
5.4.200.0130.05318.97
5.4.190.0130.04718.83
5.4.180.0030.05318.62
5.4.170.0130.05018.97
5.4.160.0100.05018.79
5.4.150.0100.05318.99
5.4.140.0030.06016.54
5.4.130.0100.06716.50
5.4.120.0100.06716.39
5.4.110.0100.05016.41
5.4.100.0170.06016.48
5.4.90.0130.06016.62
5.4.80.0030.05716.60
5.4.70.0030.05716.53
5.4.60.0100.05016.46
5.4.50.0100.06716.59
5.4.40.0030.06016.58
5.4.30.0100.05016.54
5.4.20.0070.04716.49
5.4.10.0170.04316.52
5.4.00.0070.05315.87
5.3.290.0080.03712.80
5.3.280.0170.06714.73
5.3.270.0200.04014.68
5.3.260.0030.07714.73
5.3.250.0130.06314.62
5.3.240.0100.05314.78
5.3.230.0130.06314.61
5.3.220.0100.05714.66
5.3.210.0100.05014.65
5.3.200.0130.06314.65
5.3.190.0130.06714.55
5.3.180.0070.07714.54
5.3.170.0030.05714.56
5.3.160.0130.06314.39
5.3.150.0100.04714.64
5.3.140.0130.07314.54
5.3.130.0270.06014.52
5.3.120.0130.06314.62
5.3.110.0070.05714.61
5.3.100.0070.05714.17
5.3.90.0130.04014.02
5.3.80.0170.04014.10
5.3.70.0130.04314.01
5.3.60.0100.06714.07
5.3.50.0130.06013.95
5.3.40.0100.04714.03
5.3.30.0130.04313.98
5.3.20.0030.05313.71
5.3.10.0000.08013.66
5.3.00.0100.06713.65
5.2.170.0100.03711.23
5.2.160.0070.04311.23
5.2.150.0070.04011.05
5.2.140.0100.03710.97
5.2.130.0170.04311.18
5.2.120.0100.03711.07
5.2.110.0130.03311.05
5.2.100.0030.04311.11
5.2.90.0070.03711.07
5.2.80.0000.06711.18
5.2.70.0130.03311.25
5.2.60.0070.05311.14
5.2.50.0100.05311.24
5.2.40.0130.03311.07
5.2.30.0070.05310.94
5.2.20.0070.03711.11
5.2.10.0130.05310.94
5.2.00.0130.05010.67
5.1.60.0030.04710.04
5.1.50.0030.0409.93
5.1.40.0070.0479.93
5.1.30.0170.04010.30
5.1.20.0070.05310.27
5.1.10.0030.05010.03
5.1.00.0030.04310.16
5.0.50.0030.0308.55
5.0.40.0070.0238.64
5.0.30.0070.0508.29
5.0.20.0130.0308.20
5.0.10.0070.0378.20
5.0.00.0030.0608.25
4.4.90.0030.0208.20
4.4.80.0070.0278.20
4.4.70.0030.0278.20
4.4.60.0000.0238.20
4.4.50.0070.0278.20
4.4.40.0070.0438.20
4.4.30.0000.0238.20
4.4.20.0000.0308.20
4.4.10.0100.0138.20
4.4.00.0070.0308.20
4.3.110.0070.0178.20
4.3.100.0030.0278.20
4.3.90.0070.0278.20
4.3.80.0000.0438.20
4.3.70.0000.0308.20
4.3.60.0070.0178.20
4.3.50.0030.0238.20
4.3.40.0070.0308.20
4.3.30.0000.0308.20
4.3.20.0070.0238.20
4.3.10.0030.0278.20
4.3.00.0070.0206.76

preferences:
40.77 ms | 401 KiB | 5 Q