3v4l.org

run code in 300+ PHP versions simultaneously
<?php if(PHP_VERSION_ID < 50400) { return; } class Foo { function recurseBenchCallerContex($iterations, $recursionLimit) { if($recursionLimit > 0) { return $this->recurseBenchCallerContex($iterations, $recursionLimit - 1); } $start = microtime(true); for($c = 0; $c < $iterations; $c++) { $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2); $class = isset($trace[1]['class']) ? $trace[1]['class'] : null; } var_dump('debug_backtrace', microtime(true) - $start); $start = microtime(true); for($c = 0; $c < $iterations; $c++) { $class = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS); } $start = microtime(true); var_dump('debug_backtrace full', microtime(true) - $start); } } $foo = new Foo; $foo->recurseBenchCallerContex(10000, 100);

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)
7.2.00.0070.10319.54
7.1.70.0030.09317.38
7.1.60.0030.10619.46
7.1.50.0000.11717.05
7.1.00.0030.19322.32
7.0.200.0030.20116.73
7.0.140.0030.30722.09
7.0.60.0000.22320.02
7.0.50.0030.23718.05
7.0.40.0070.24720.27
7.0.30.0200.21320.06
7.0.20.0200.23320.22
7.0.10.0130.27320.19
7.0.00.0070.27720.22
5.6.280.0070.50721.33
5.6.210.0030.44721.05
5.6.200.0070.41318.29
5.6.190.0070.40020.64
5.6.180.0430.46020.50
5.6.170.0300.45320.72
5.6.160.0130.48320.61
5.6.150.0070.45318.41
5.6.140.0000.42318.42
5.6.130.0100.40018.39
5.6.120.0070.45321.23
5.6.110.0070.45021.33
5.6.100.0130.48721.18
5.6.90.0100.46721.42
5.6.80.0070.43720.67
5.5.350.0130.44720.72
5.5.340.0070.40318.19
5.5.330.0100.50320.48
5.5.320.0370.46720.41
5.5.310.1030.38720.44
5.5.300.0030.41318.25
5.5.290.0030.50318.30
5.5.280.0100.40020.94
5.5.270.0100.48021.15
5.5.260.0030.56021.17
5.5.250.0200.48720.95
5.5.240.0170.51720.34
5.4.450.1270.60719.59
5.4.440.0200.67019.73
5.4.430.0170.41019.59
5.4.420.1100.46719.48
5.4.410.0700.65719.35
5.4.400.0570.60319.14
5.4.390.0200.69019.03
5.4.380.0530.81019.08
5.4.370.0470.91718.85
5.4.360.0370.80019.08
5.4.350.0330.70718.82
5.4.340.0370.70318.81
5.4.320.0040.49412.86
5.4.310.0080.52412.85
5.4.300.0040.50412.86
5.4.290.0090.49312.85
5.4.280.0050.51312.75
5.4.270.0080.49712.75
5.4.260.0070.50512.75
5.4.250.0050.50812.75
5.4.240.0100.52812.75
5.4.230.0130.54512.74
5.4.220.0110.50412.74
5.4.210.0050.49612.74
5.4.200.0060.50512.74
5.4.190.0080.55312.73
5.4.180.0080.57012.73
5.4.170.0110.53612.75
5.4.160.0070.69812.75
5.4.150.0120.60012.75
5.4.140.0110.71012.43
5.4.130.0080.65812.41
5.4.120.0120.57012.37
5.4.110.0100.70412.37
5.4.100.0160.67212.37
5.4.90.0110.59912.37
5.4.80.0090.89612.37
5.4.70.0110.63512.36
5.4.60.0110.56012.37
5.4.50.0110.59912.37
5.4.40.0090.57712.35
5.4.30.0120.72312.35
5.4.20.0100.79112.35
5.4.10.0210.67412.34
5.4.00.0080.59711.84
5.3.290.0080.03912.80
5.3.280.0080.03712.70
5.3.270.0090.03612.73
5.3.260.0100.03612.72
5.3.250.0070.05412.72
5.3.240.0110.05012.72
5.3.230.0110.04912.70
5.3.220.0070.03912.68
5.3.210.0120.04212.68
5.3.200.0120.04712.68
5.3.190.0120.04912.68
5.3.180.0060.05412.68
5.3.170.0060.03912.66
5.3.160.0110.05212.68
5.3.150.0060.04412.67
5.3.140.0080.03912.66
5.3.130.0110.05412.66
5.3.120.0060.04212.66
5.3.110.0080.04012.66
5.3.100.0040.04012.12
5.3.90.0060.05112.10
5.3.80.0060.03612.09
5.3.70.0090.03712.09
5.3.60.0050.04112.07
5.3.50.0090.03412.04
5.3.40.0090.03412.04
5.3.30.0050.03711.99
5.3.20.0060.03911.78
5.3.10.0090.04911.74
5.3.00.0090.03811.73
5.2.170.0030.0349.23
5.2.160.0040.0319.23
5.2.150.0060.0329.23
5.2.140.0090.0299.23
5.2.130.0130.0339.19
5.2.120.0080.0349.19
5.2.110.0040.0399.20
5.2.100.0070.0339.19
5.2.90.0110.0369.19
5.2.80.0050.0389.18
5.2.70.0070.0309.18
5.2.60.0060.0339.14
5.2.50.0090.0429.11
5.2.40.0050.0319.08
5.2.30.0060.0319.06
5.2.20.0040.0329.04
5.2.10.0070.0278.95
5.2.00.0070.0288.82
5.1.60.0030.0258.10
5.1.50.0020.0308.09
5.1.40.0070.0238.08
5.1.30.0060.0358.43
5.1.20.0070.0378.45
5.1.10.0030.0288.17
5.1.00.0030.0278.18
5.0.50.0030.0296.66
5.0.40.0050.0186.52
5.0.30.0020.0336.33
5.0.20.0040.0206.29
5.0.10.0010.0226.28
5.0.00.0070.0276.27
4.4.90.0010.0234.78
4.4.80.0020.0174.75
4.4.70.0040.0174.75
4.4.60.0040.0194.75
4.4.50.0030.0224.77
4.4.40.0030.0314.70
4.4.30.0030.0164.76
4.4.20.0070.0114.84
4.4.10.0030.0154.85
4.4.00.0040.0244.76
4.3.110.0040.0154.67
4.3.100.0010.0174.67
4.3.90.0040.0134.63
4.3.80.0020.0254.58
4.3.70.0040.0134.63
4.3.60.0020.0154.63
4.3.50.0030.0224.63
4.3.40.0010.0254.54
4.3.30.0020.0163.32
4.3.20.0010.0173.30
4.3.10.0010.0173.26
4.3.00.0000.01718.56

preferences:
38.2 ms | 400 KiB | 5 Q