3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { function __construct() { $this->a = "xhello"; $this->b = "hi"; $this->val = "howdy"; $val = "b"; echo $this -> a; // 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)
8.3.60.0130.00716.63
8.3.50.0100.01021.95
8.3.40.0110.00318.98
8.3.30.0070.00719.07
8.3.20.0040.00420.04
8.3.10.0000.00821.91
8.3.00.0050.00319.38
8.2.180.0130.00918.56
8.2.170.0100.01022.96
8.2.160.0070.00720.35
8.2.150.0000.00824.18
8.2.140.0030.00524.66
8.2.130.0000.00726.16
8.2.120.0080.00019.48
8.2.110.0040.00422.13
8.2.100.0060.00617.63
8.2.90.0000.00819.05
8.2.80.0040.00417.97
8.2.70.0030.00517.63
8.2.60.0000.00717.91
8.2.50.0000.00818.07
8.2.40.0040.00419.84
8.2.30.0000.00717.96
8.2.20.0040.00417.73
8.2.10.0040.00418.11
8.2.00.0050.00317.64
8.1.280.0070.01425.92
8.1.270.0070.00720.33
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0040.00423.92
8.1.230.0080.00317.65
8.1.220.0040.00417.79
8.1.210.0080.00018.77
8.1.200.0030.00617.35
8.1.190.0050.00317.35
8.1.180.0000.00718.10
8.1.170.0030.00620.34
8.1.160.0040.00421.93
8.1.150.0040.00418.89
8.1.140.0000.00717.43
8.1.130.0030.00317.73
8.1.120.0070.00317.48
8.1.110.0080.00017.47
8.1.100.0040.00417.45
8.1.90.0030.00517.52
8.1.80.0000.00817.46
8.1.70.0030.00317.48
8.1.60.0040.00417.59
8.1.50.0000.00817.52
8.1.40.0000.00817.43
8.1.30.0060.00317.48
8.1.20.0070.00017.55
8.1.10.0040.00817.49
8.1.00.0050.00317.51
8.0.300.0030.00518.77
8.0.290.0050.00216.63
8.0.280.0040.00418.45
8.0.270.0000.00717.24
8.0.260.0030.00317.16
8.0.250.0030.00316.95
8.0.240.0070.00016.96
8.0.230.0040.00217.02
8.0.220.0030.00316.75
8.0.210.0000.00716.80
8.0.200.0060.00016.94
8.0.190.0040.00416.88
8.0.180.0000.00716.89
8.0.170.0040.00416.92
8.0.160.0000.00716.80
8.0.150.0030.00316.86
8.0.140.0070.00016.86
8.0.130.0000.00813.33
8.0.120.0000.00816.78
8.0.110.0060.00316.90
8.0.100.0050.00216.75
8.0.90.0050.00316.67
8.0.80.0110.00616.85
8.0.70.0000.00716.71
8.0.60.0040.00416.89
8.0.50.0000.00716.89
8.0.30.0070.01817.08
8.0.20.0080.01117.40
8.0.10.0070.00016.90
8.0.00.0070.01216.83
7.4.330.0060.00015.11
7.4.320.0060.00016.43
7.4.300.0030.00316.64
7.4.290.0070.00016.40
7.4.280.0040.00416.50
7.4.270.0040.00416.40
7.4.260.0000.00716.58
7.4.250.0000.00716.32
7.4.240.0020.00516.49
7.4.230.0070.00016.60
7.4.220.0120.00616.61
7.4.210.0120.00516.46
7.4.200.0030.00316.39
7.4.160.0040.01216.41
7.4.150.0190.00017.40
7.4.140.0130.01017.86
7.4.130.0090.00916.49
7.4.120.0150.00316.41
7.4.110.0150.00316.34
7.4.100.0120.00916.41
7.4.90.0100.00716.36
7.4.80.0150.00419.39
7.4.70.0050.01116.53
7.4.60.0120.00416.43
7.4.50.0030.00316.48
7.4.40.0150.00316.48
7.4.30.0100.00616.54
7.4.00.0000.01514.88
7.3.330.0060.00013.19
7.3.320.0080.00413.20
7.3.310.0040.00416.42
7.3.300.0000.00716.39
7.3.290.0050.01016.37
7.3.280.0060.01116.37
7.3.270.0110.00617.40
7.3.260.0150.00916.59
7.3.250.0130.00516.44
7.3.240.0060.01216.60
7.3.230.0060.01216.39
7.3.210.0140.00916.32
7.3.200.0070.01019.39
7.3.190.0040.01216.72
7.3.180.0030.01416.30
7.3.170.0170.00316.45
7.3.160.0120.00316.42
7.3.10.0040.00716.47
7.3.00.0090.00316.59
7.2.330.0070.01016.47
7.2.320.0140.00616.52
7.2.310.0070.01816.80
7.2.300.0110.01116.34
7.2.290.0110.01216.76
7.2.130.0060.00416.93
7.2.120.0020.01216.83
7.2.110.0030.01016.83
7.2.100.0070.00316.61
7.2.90.0070.00516.96
7.2.80.0110.00516.80
7.2.70.0070.00716.80
7.2.60.0050.00716.95
7.2.50.0100.00516.87
7.2.40.0080.00516.82
7.2.30.0060.00616.86
7.2.20.0080.00816.97
7.2.10.0070.00616.89
7.2.00.0070.00517.77
7.1.250.0070.00215.54
7.1.200.0000.01415.51
7.1.100.0090.00618.09
7.1.70.0030.00517.29
7.1.60.0180.00719.50
7.1.50.0060.01917.07
7.1.00.0070.07322.33
7.0.200.0200.00714.75
7.0.140.0030.06322.09
7.0.60.0070.05019.93
7.0.50.0030.03717.83
7.0.40.0100.04719.96
7.0.30.0200.06720.21
7.0.20.0370.07320.12
7.0.10.0200.08720.19
7.0.00.0030.04320.09
5.6.280.0000.07721.08
5.6.210.0130.07020.71
5.6.200.0070.08718.18
5.6.190.0100.06720.41
5.6.180.0270.04020.46
5.6.170.0270.08020.55
5.6.160.0000.05320.56
5.6.150.0030.06318.19
5.6.140.0000.04318.15
5.6.130.0030.07018.16
5.6.120.0030.07321.09
5.6.110.0070.07020.98
5.6.100.0100.07320.97
5.6.90.0130.07321.10
5.6.80.0230.06020.45
5.6.70.0430.06720.44
5.5.350.0300.07020.47
5.5.340.0070.04717.98
5.5.330.0070.04720.57
5.5.320.0070.06720.27
5.5.310.0300.08020.33
5.5.300.0100.07718.03
5.5.290.0170.07717.98
5.5.280.0030.08320.85
5.5.270.0030.04320.64
5.5.260.0330.06720.79
5.5.250.0070.06020.71
5.5.240.0030.05020.18
5.4.450.0130.05719.34
5.4.440.0100.05719.70
5.4.430.0470.06319.69
5.4.420.0070.06319.34
5.4.410.0130.06318.90
5.4.400.0430.06018.80
5.4.390.0370.05718.59
5.4.380.0400.06018.53
5.4.370.0430.07318.72
5.4.360.0400.06318.62
5.4.350.0370.07318.74
5.4.340.0470.05718.56
5.4.320.0330.07318.69
5.4.310.0400.06018.79
5.4.300.0500.05318.52
5.4.290.0570.05018.75
5.4.280.0470.07718.74
5.4.270.0400.08018.63
5.4.260.0500.06018.59
5.4.250.0500.06318.76
5.4.240.0500.07018.46
5.4.230.0370.08718.55
5.4.220.0500.07018.68
5.4.210.0570.07018.60
5.4.200.0500.06716.55
5.4.190.0330.06318.62
5.4.180.0470.05718.62
5.4.170.0470.06718.51
5.4.160.0400.08018.73
5.4.150.0470.06018.83
5.4.140.0430.06016.23
5.4.130.0370.05716.24
5.4.120.0330.06016.27
5.4.110.0530.03316.32
5.4.100.0270.05716.29
5.4.90.0330.08016.29
5.4.80.0470.06316.16
5.4.70.0400.07316.23
5.4.60.0530.05716.22
5.4.50.0370.06016.25
5.4.40.0400.06316.26
5.4.30.0370.05016.25
5.4.20.0300.05316.25
5.4.10.0300.06016.25
5.4.00.0330.05015.78
5.3.290.0330.05714.70
5.3.280.0330.05314.77
5.3.270.0370.06014.65
5.3.260.0400.05714.73
5.3.250.0500.06314.74
5.3.240.0470.06314.77
5.3.230.0200.06314.72
5.3.220.0500.05314.70
5.3.210.0330.06014.57
5.3.200.0270.05314.70
5.3.190.0400.05014.75
5.3.180.0430.05714.58
5.3.170.0300.06014.66
5.3.160.0270.06314.66
5.3.150.0270.06014.70
5.3.140.0430.05314.72
5.3.130.0270.06714.62
5.3.120.0430.04714.56
5.3.110.0230.07014.59
5.3.100.0270.06714.21
5.3.90.0330.05314.04
5.3.80.0270.05314.14
5.3.70.0270.07014.00
5.3.60.0270.05714.00
5.3.50.0300.05313.99
5.3.40.0230.06313.93
5.3.30.0430.03713.96
5.3.20.0230.06013.71
5.3.10.0400.04713.69
5.3.00.0300.07713.81
5.2.170.0270.05011.21
5.2.160.0330.05311.25
5.2.150.0330.04711.18
5.2.140.0270.04011.16
5.2.130.0330.04311.20
5.2.120.0300.04311.13
5.2.110.0400.05311.22
5.2.100.0300.05011.09
5.2.90.0330.04011.12
5.2.80.0330.04711.22
5.2.70.0370.04311.20
5.2.60.0370.03711.05
5.2.50.0270.04011.08
5.2.40.0270.04311.11
5.2.30.0300.04711.00
5.2.20.0230.04711.06
5.2.10.0200.05310.86
5.2.00.0300.04710.93
5.1.60.0230.04010.07
5.1.50.0330.03710.07
5.1.40.0330.04010.18
5.1.30.0270.04310.37
5.1.20.0200.05010.56
5.1.10.0200.04010.27
5.1.00.0200.04310.11
5.0.50.0100.0378.73
5.0.40.0100.0338.55
5.0.30.0170.0438.26
5.0.20.0100.0308.24
5.0.10.0200.0238.17
5.0.00.0100.0538.34
4.4.90.0130.0236.89
4.4.80.0130.0236.89
4.4.70.0100.0306.89
4.4.60.0100.0236.89
4.4.50.0170.0276.89
4.4.40.0130.0336.89
4.4.30.0130.0206.89
4.4.20.0070.0276.89
4.4.10.0130.0206.89
4.4.00.0100.0376.89
4.3.110.0100.0236.89
4.3.100.0170.0176.89
4.3.90.0130.0206.89
4.3.80.0200.0336.89
4.3.70.0130.0206.89
4.3.60.0130.0206.89
4.3.50.0130.0236.89
4.3.40.0170.0306.89
4.3.30.0070.0236.89
4.3.20.0030.0276.89
4.3.10.0030.0236.89
4.3.00.0070.0206.74

preferences:
44.52 ms | 401 KiB | 5 Q