3v4l.org

run code in 300+ PHP versions simultaneously
<?php function userland_func_get_arg($idx) { return isset(debug_backtrace()[1]['args'][$idx]) ? debug_backtrace()[1]['args'][$idx] : false; } function foo() { $a = func_get_arg(0); $a = 'bar'; } function bar() { $a = userland_func_get_arg(0); $a = 'bar'; } $foo = 'foo'; var_dump(foo($foo, 'bar')); var_dump($foo); $foo = 'foo'; var_dump(bar($foo, 'bar')); var_dump($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)
8.3.70.0040.01116.38
8.3.60.0070.00718.31
8.3.50.0100.01221.94
8.3.40.0110.00718.70
8.3.30.0100.00719.09
8.3.20.0040.00420.20
8.3.10.0030.00620.38
8.3.00.0040.00419.38
8.2.190.0120.00316.74
8.2.180.0100.00718.41
8.2.170.0140.00022.96
8.2.160.0100.00320.53
8.2.150.0050.00224.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00822.06
8.2.110.0090.00020.57
8.2.100.0040.00718.09
8.2.90.0080.00019.08
8.2.80.0080.00017.97
8.2.70.0030.00617.63
8.2.60.0080.00017.91
8.2.50.0090.00018.07
8.2.40.0080.00018.09
8.2.30.0070.00418.18
8.2.20.0090.00017.69
8.2.10.0040.00418.07
8.2.00.0040.00417.57
8.1.280.0070.01425.92
8.1.270.0000.00822.10
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0040.00424.02
8.1.230.0100.00019.16
8.1.220.0000.00817.77
8.1.210.0050.00218.77
8.1.200.0060.00317.23
8.1.190.0050.00317.10
8.1.180.0040.00418.10
8.1.170.0080.00318.50
8.1.160.0070.00021.95
8.1.150.0000.00718.75
8.1.140.0000.00717.45
8.1.130.0030.00317.88
8.1.120.0040.00417.40
8.1.110.0040.00417.34
8.1.100.0040.00417.32
8.1.90.0000.00717.33
8.1.80.0040.00417.48
8.1.70.0070.00017.32
8.1.60.0060.00317.50
8.1.50.0040.00417.52
8.1.40.0020.00517.43
8.1.30.0060.00317.52
8.1.20.0030.00717.60
8.1.10.0080.00017.63
8.1.00.0070.00017.39
8.0.300.0040.00418.77
8.0.290.0080.00016.63
8.0.280.0070.00018.38
8.0.270.0070.00017.23
8.0.260.0040.00417.13
8.0.250.0040.00316.90
8.0.240.0000.00716.90
8.0.230.0030.00316.89
8.0.220.0000.00616.87
8.0.210.0030.00316.84
8.0.200.0030.00316.82
8.0.190.0040.00416.86
8.0.180.0080.00016.84
8.0.170.0080.00016.88
8.0.160.0040.00416.89
8.0.150.0000.00816.77
8.0.140.0070.00016.79
8.0.130.0070.00013.23
8.0.120.0040.00416.71
8.0.110.0070.00016.75
8.0.100.0000.00816.80
8.0.90.0000.00816.83
8.0.80.0060.00916.77
8.0.70.0070.00016.76
8.0.60.0030.00416.67
8.0.50.0080.00016.79
8.0.30.0150.00416.91
8.0.20.0190.00517.40
8.0.10.0030.00616.84
8.0.00.0110.01316.72
7.4.330.0050.00015.02
7.4.320.0030.00316.42
7.4.300.0060.00016.49
7.4.290.0070.00016.52
7.4.280.0040.00416.51
7.4.270.0030.00316.63
7.4.260.0000.00716.59
7.4.250.0040.00416.43
7.4.240.0020.00516.54
7.4.230.0070.00016.73
7.4.220.0070.01316.62
7.4.210.0140.00416.66
7.4.200.0000.00716.42
7.4.160.0120.00616.42
7.4.150.0040.01417.40
7.4.140.0120.00417.86
7.4.130.0050.01216.38
7.4.120.0040.01416.43
7.4.110.0090.00916.59
7.4.100.0080.00816.50
7.4.90.0110.00616.56
7.4.80.0100.00619.39
7.4.70.0080.00816.41
7.4.60.0100.00616.61
7.4.50.0020.00216.50
7.4.40.0100.00716.55
7.4.30.0160.00616.49
7.4.00.0080.00814.98
7.3.330.0030.00313.34
7.3.320.0000.00513.29
7.3.310.0030.00316.41
7.3.300.0030.00316.38
7.3.290.0120.00316.30
7.3.280.0080.00816.36
7.3.270.0170.00017.40
7.3.260.0070.01116.44
7.3.250.0090.01116.27
7.3.240.0070.01016.32
7.3.230.0070.01016.58
7.3.210.0100.01316.27
7.3.200.0100.01219.39
7.3.190.0040.01216.60
7.3.180.0060.00916.30
7.3.170.0100.00716.27
7.3.160.0150.00616.31
7.2.330.0080.00816.66
7.2.320.0130.01016.41
7.2.310.0100.00716.46
7.2.300.0120.00616.39
7.2.290.0130.00416.87
7.2.00.0080.00819.22
7.1.100.0140.00518.10
7.1.70.0030.00717.07
7.1.60.0100.00619.32
7.1.50.0070.01717.02
7.1.00.0100.07022.33
7.0.200.0070.00316.77
7.0.140.0100.06322.08
7.0.60.0070.08019.91
7.0.50.0070.08717.93
7.0.40.0100.06020.04
7.0.30.0230.08020.30
7.0.20.0300.08020.23
7.0.10.0000.04720.15
7.0.00.0130.04320.24
5.6.280.0100.06321.08
5.6.210.0130.07320.70
5.6.200.0200.07318.19
5.6.190.0200.08320.68
5.6.180.0470.07020.52
5.6.170.0400.07320.55
5.6.160.0030.04720.39
5.6.150.0030.05318.27
5.6.140.0030.06718.18
5.6.130.0000.05318.25
5.6.120.0130.05020.86
5.6.110.0100.07720.99
5.6.100.0030.08321.00
5.6.90.0070.08720.98
5.6.80.0170.05020.46
5.5.350.0270.07320.37
5.5.340.0100.06718.07
5.5.330.0170.06720.19
5.5.320.0470.06720.33
5.5.310.0270.03720.35
5.5.300.0100.06317.95
5.5.290.0070.08017.93
5.5.280.0030.04320.97
5.5.270.0000.04320.76
5.5.260.0100.07020.87
5.5.250.0130.07720.47
5.5.240.0230.05020.20
5.4.450.0470.03319.38
5.4.440.0930.06719.57
5.4.430.0770.06019.30
5.4.420.0670.00019.52
5.4.410.0900.00019.41
5.4.400.0630.00019.38
5.4.390.0630.00019.13
5.4.380.0630.00019.16
5.4.370.0870.00019.16
5.4.360.0600.00019.03
5.4.350.0630.00019.24
5.4.340.0600.00019.03
5.4.320.0070.04712.51
5.4.310.0080.04112.50
5.4.300.0060.03812.51
5.4.290.0070.03712.51
5.4.280.0040.03712.40
5.4.270.0070.03512.40
5.4.260.0040.03912.40
5.4.250.0080.03412.40
5.4.240.0060.03512.40
5.4.230.0060.03912.39
5.4.220.0070.03412.40
5.4.210.0020.03812.39
5.4.200.0050.03812.40
5.4.190.0080.03512.39
5.4.180.0050.03612.39
5.4.170.0050.03612.40
5.4.160.0020.03912.39
5.4.150.0060.03712.39
5.4.140.0070.03512.08
5.4.130.0060.03512.07
5.4.120.0040.03612.02
5.4.110.0080.03212.02
5.4.100.0040.03612.01
5.4.90.0060.03612.02
5.4.80.0090.03812.02
5.4.70.0060.03812.02
5.4.60.0030.03712.01
5.4.50.0050.03512.01
5.4.40.0050.03512.00
5.4.30.0060.03412.00
5.4.20.0070.03812.00
5.4.10.0030.03712.00
5.4.00.0060.03511.49
5.3.290.0060.03812.80
5.3.280.0050.04412.71
5.3.270.0060.03912.72
5.3.260.0090.03712.72
5.3.250.0070.03812.72
5.3.240.0050.03812.72
5.3.230.0060.03712.71
5.3.220.0090.03412.68
5.3.210.0040.04312.68
5.3.200.0060.03612.68
5.3.190.0060.03612.68
5.3.180.0020.04012.67
5.3.170.0100.03312.67
5.3.160.0060.03612.67
5.3.150.0050.04312.67
5.3.140.0030.03912.66
5.3.130.0050.04012.66
5.3.120.0030.04112.66
5.3.110.0080.03612.66
5.3.100.0090.04412.12
5.3.90.0040.04112.11
5.3.80.0090.03512.09
5.3.70.0060.03612.09
5.3.60.0070.03512.08
5.3.50.0080.03312.02
5.3.40.0060.03612.02
5.3.30.0050.03511.98
5.3.20.0100.03011.76
5.3.10.0050.03611.73
5.3.00.0080.03411.71
5.2.170.0030.0319.21
5.2.160.0070.0309.21
5.2.150.0050.0299.21
5.2.140.0060.0289.21
5.2.130.0050.0289.17
5.2.120.0030.0329.17
5.2.110.0060.0289.18
5.2.100.0040.0299.18
5.2.90.0070.0269.18
5.2.80.0030.0319.17
5.2.70.0060.0309.17
5.2.60.0050.0329.12
5.2.50.0030.0369.09
5.2.40.0030.0299.07
5.2.30.0060.0279.04
5.2.20.0050.0279.04
5.2.10.0020.0308.95
5.2.00.0050.0358.80
5.1.60.0050.0228.09
5.1.50.0030.0258.08
5.1.40.0030.0258.06
5.1.30.0050.0248.41
5.1.20.0060.0248.43
5.1.10.0030.0268.16
5.1.00.0040.0258.16
5.0.50.0020.0246.64
5.0.40.0050.0216.50
5.0.30.0040.0306.30
5.0.20.0010.0246.28
5.0.10.0040.0196.25
5.0.00.0030.0306.25
4.4.90.0020.0154.78
4.4.80.0060.0124.75
4.4.70.0030.0154.75
4.4.60.0020.0174.75
4.4.50.0050.0184.77
4.4.40.0030.0274.71
4.4.30.0040.0194.76
4.4.20.0030.0184.84
4.4.10.0040.0214.85
4.4.00.0030.0284.76
4.3.110.0030.0144.66
4.3.100.0020.0154.67
4.3.90.0020.0154.64
4.3.80.0010.0264.58
4.3.70.0040.0134.63
4.3.60.0060.0114.63
4.3.50.0020.0174.63
4.3.40.0000.0264.54
4.3.30.0020.0153.30
4.3.20.0010.0173.28
4.3.10.0050.0173.24
4.3.00.0270.0177.07

preferences:
45.28 ms | 401 KiB | 5 Q