3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { function __construct() { $this->a = "xhello"; $this->b = "hi"; $this->val = "howdy"; $val = "a"; echo $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)
8.3.60.0090.00616.63
8.3.50.0170.00317.99
8.3.40.0070.00718.79
8.3.30.0150.00019.16
8.3.20.0030.00520.29
8.3.10.0000.00721.73
8.3.00.0040.00419.50
8.2.180.0170.00318.54
8.2.170.0110.00422.96
8.2.160.0140.00020.32
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00419.24
8.2.110.0060.00319.45
8.2.100.0070.00417.91
8.2.90.0000.00819.23
8.2.80.0090.00017.97
8.2.70.0040.00417.49
8.2.60.0000.00917.93
8.2.50.0080.00018.07
8.2.40.0040.00420.01
8.2.30.0040.00418.02
8.2.20.0000.00717.74
8.2.10.0040.00418.03
8.2.00.0040.00417.81
8.1.280.0110.01125.92
8.1.270.0080.00820.43
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00820.99
8.1.230.0040.00817.52
8.1.220.0050.00317.79
8.1.210.0080.00018.77
8.1.200.0100.00017.34
8.1.190.0000.00817.35
8.1.180.0000.00718.10
8.1.170.0080.00020.35
8.1.160.0070.00022.02
8.1.150.0070.00018.94
8.1.140.0000.00717.56
8.1.130.0040.00417.87
8.1.120.0070.00317.51
8.1.110.0030.00317.35
8.1.100.0000.00717.34
8.1.90.0080.00017.37
8.1.80.0040.00417.48
8.1.70.0030.00317.44
8.1.60.0060.00317.57
8.1.50.0000.00817.51
8.1.40.0030.00617.42
8.1.30.0060.00317.63
8.1.20.0000.00717.61
8.1.10.0040.00717.57
8.1.00.0030.00517.50
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0000.00818.44
8.0.270.0000.00717.26
8.0.260.0050.00317.26
8.0.250.0020.00516.99
8.0.240.0030.00316.97
8.0.230.0070.00016.91
8.0.220.0030.00316.86
8.0.210.0070.00016.75
8.0.200.0030.00317.01
8.0.190.0000.00816.93
8.0.180.0020.00516.81
8.0.170.0040.00417.01
8.0.160.0070.00016.88
8.0.150.0000.00716.76
8.0.140.0000.00816.74
8.0.130.0030.00413.32
8.0.120.0000.00816.82
8.0.110.0070.00016.95
8.0.100.0040.00416.70
8.0.90.0000.00716.77
8.0.80.0080.00816.88
8.0.70.0000.00816.95
8.0.60.0070.00016.84
8.0.50.0070.00016.73
8.0.30.0110.01417.19
8.0.20.0060.01517.40
8.0.10.0000.00716.89
8.0.00.0070.01016.61
7.4.330.0030.00315.03
7.4.320.0040.00416.57
7.4.300.0030.00316.65
7.4.290.0050.00316.65
7.4.280.0040.00416.54
7.4.270.0000.00716.42
7.4.260.0070.00016.51
7.4.250.0000.00716.52
7.4.240.0040.00416.55
7.4.230.0000.00716.34
7.4.220.0090.00916.62
7.4.210.0080.00916.57
7.4.200.0030.00316.49
7.4.160.0110.00416.47
7.4.150.0090.00917.40
7.4.140.0110.01117.86
7.4.130.0130.00516.64
7.4.120.0100.00916.39
7.4.110.0030.01516.65
7.4.100.0130.01016.57
7.4.90.0120.00616.56
7.4.80.0170.00019.39
7.4.70.0100.00716.48
7.4.60.0120.00616.27
7.4.50.0000.00716.38
7.4.40.0140.00916.25
7.4.30.0070.01016.68
7.4.00.0030.01014.86
7.3.330.0000.00613.39
7.3.320.0060.00613.40
7.3.310.0070.00016.35
7.3.300.0040.00416.22
7.3.290.0050.01016.39
7.3.280.0050.00916.35
7.3.270.0100.00717.40
7.3.260.0080.01116.56
7.3.250.0090.00816.54
7.3.240.0030.01416.43
7.3.230.0120.00916.67
7.3.210.0090.00916.69
7.3.200.0060.01019.39
7.3.190.0100.01016.42
7.3.180.0140.00716.50
7.3.170.0060.01216.39
7.3.160.0100.00616.41
7.2.330.0090.00916.85
7.2.320.0130.00316.65
7.2.310.0090.01216.62
7.2.300.0120.00916.68
7.2.290.0070.01116.62
7.2.00.0030.01019.46
7.1.100.0100.00618.04
7.1.70.0000.01016.87
7.1.60.0110.01119.50
7.1.50.0110.01416.83
7.1.00.0000.06722.36
7.0.200.0050.00514.92
7.0.140.0100.05722.19
7.0.60.0100.07020.02
7.0.50.0030.04017.84
7.0.40.0000.07320.25
7.0.30.0300.06020.20
7.0.20.0430.07320.24
7.0.10.0200.09020.22
7.0.00.0070.04020.25
5.6.280.0070.07021.16
5.6.210.0130.07020.62
5.6.200.0000.07718.13
5.6.190.0100.06020.63
5.6.180.0200.06320.61
5.6.170.0300.08320.51
5.6.160.0070.07720.55
5.6.150.0070.05718.15
5.6.140.0130.03018.13
5.6.130.0070.04018.29
5.6.120.0070.06020.96
5.6.110.0100.08320.98
5.6.100.0000.04321.02
5.6.90.0070.08321.08
5.6.80.0000.04320.54
5.6.70.0300.08020.37
5.5.350.0200.08020.37
5.5.340.0100.08318.08
5.5.330.0070.09020.19
5.5.320.0070.08020.57
5.5.310.0330.06020.30
5.5.300.0070.04717.98
5.5.290.0130.04017.96
5.5.280.0100.04320.67
5.5.270.0030.04020.76
5.5.260.0330.06320.77
5.5.250.0070.06320.43
5.5.240.0100.07320.28
5.4.450.0300.04719.71
5.4.440.0930.05019.61
5.4.430.0930.05319.63
5.4.420.0870.06019.44
5.4.410.0270.05718.85
5.4.400.0430.04318.89
5.4.390.0300.05718.63
5.4.380.0330.06318.48
5.4.370.0370.06318.61
5.4.360.0300.08018.53
5.4.350.0470.04718.57
5.4.340.0370.05318.47
5.4.320.0300.06018.80
5.4.310.0500.05318.79
5.4.300.0400.07318.71
5.4.290.0570.05718.50
5.4.280.0430.05318.80
5.4.270.0430.05018.52
5.4.260.0300.05718.46
5.4.250.0400.05318.75
5.4.240.0370.06018.80
5.4.230.0330.05718.62
5.4.220.0430.06718.60
5.4.210.0430.06318.61
5.4.200.0430.06316.72
5.4.190.0430.05318.73
5.4.180.0270.06318.88
5.4.170.0370.05318.50
5.4.160.0470.04718.56
5.4.150.0370.05718.75
5.4.140.0330.05716.29
5.4.130.0370.05716.22
5.4.120.0530.05016.24
5.4.110.0370.05316.29
5.4.100.0270.06016.21
5.4.90.0470.04716.44
5.4.80.0570.06716.26
5.4.70.0300.08016.26
5.4.60.0270.06716.31
5.4.50.0300.05316.40
5.4.40.0330.05016.20
5.4.30.0470.05716.30
5.4.20.0370.06716.16
5.4.10.0430.06316.29
5.4.00.0300.06015.64
5.3.290.0300.05714.83
5.3.280.0430.06314.71
5.3.270.0300.06314.73
5.3.260.0400.05014.60
5.3.250.0430.06314.73
5.3.240.0230.06314.77
5.3.230.0370.05014.70
5.3.220.0370.05714.70
5.3.210.0370.05014.73
5.3.200.0300.05014.62
5.3.190.0470.06314.75
5.3.180.0530.06314.66
5.3.170.0330.07014.73
5.3.160.0330.04714.59
5.3.150.0300.05714.60
5.3.140.0270.08014.68
5.3.130.0300.06014.71
5.3.120.0400.05014.56
5.3.110.0270.06314.76
5.3.100.0370.05014.13
5.3.90.0230.06314.15
5.3.80.0230.05714.09
5.3.70.0370.04314.00
5.3.60.0330.05014.16
5.3.50.0200.06314.07
5.3.40.0200.05314.05
5.3.30.0070.05713.93
5.3.20.0170.06013.80
5.3.10.0130.05013.64
5.3.00.0370.06013.67
5.2.170.0230.04011.25
5.2.160.0270.04711.14
5.2.150.0330.03711.12
5.2.140.0200.05011.26
5.2.130.0230.04011.13
5.2.120.0200.04311.15
5.2.110.0370.04311.21
5.2.100.0170.05311.12
5.2.90.0200.04311.32
5.2.80.0230.05711.30
5.2.70.0400.04711.20
5.2.60.0370.04311.10
5.2.50.0330.05011.24
5.2.40.0200.05310.98
5.2.30.0270.05010.99
5.2.20.0170.05711.08
5.2.10.0230.05010.89
5.2.00.0130.04310.84
5.1.60.0200.04310.02
5.1.50.0200.03710.18
5.1.40.0230.03710.00
5.1.30.0200.04010.35
5.1.20.0330.03310.44
5.1.10.0170.04010.17
5.1.00.0200.03310.02
5.0.50.0130.0338.65
5.0.40.0130.0308.60
5.0.30.0170.0538.43
5.0.20.0200.0308.39
5.0.10.0130.0378.26
5.0.00.0130.0438.24
4.4.90.0100.0236.89
4.4.80.0070.0276.89
4.4.70.0130.0206.89
4.4.60.0170.0176.89
4.4.50.0130.0236.89
4.4.40.0170.0336.89
4.4.30.0130.0276.89
4.4.20.0130.0306.89
4.4.10.0130.0276.89
4.4.00.0130.0376.89
4.3.110.0070.0276.89
4.3.100.0170.0176.89
4.3.90.0100.0336.89
4.3.80.0170.0376.89
4.3.70.0070.0236.89
4.3.60.0100.0306.89
4.3.50.0070.0236.89
4.3.40.0100.0436.89
4.3.30.0100.0176.89
4.3.20.0070.0206.89
4.3.10.0100.0236.89
4.3.00.0070.0176.74

preferences:
46.01 ms | 400 KiB | 5 Q