3v4l.org

run code in 300+ PHP versions simultaneously
<?php function P(array $sources) { $result=array(); $cache=array(); foreach($sources as $node) { $cache=$result; $result=array(); foreach($node as $item) { if(empty($cache)) { $result[]=array($item); } else { foreach($cache as $line) { $line[]=$item; $result[]=$line; } } } } return $result; } $result=P(array( array('a', 'b'), array('c', 'd')); print_r(array_map(function($a){return implode(",",$a);},$result));

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)
5.4.320.0050.03712.52
5.4.310.0070.03712.52
5.4.300.0050.03712.52
5.4.290.0030.04212.52
5.4.280.0050.03712.41
5.4.270.0070.04512.41
5.4.260.0040.04012.41
5.4.250.0040.03912.41
5.4.240.0050.03712.41
5.4.230.0060.03812.41
5.4.220.0030.03912.40
5.4.210.0050.04012.41
5.4.200.0040.04112.40
5.4.190.0080.03612.40
5.4.180.0050.04212.40
5.4.170.0080.04012.40
5.4.160.0110.04412.40
5.4.150.0100.03812.39
5.4.140.0080.04112.09
5.4.130.0060.04112.07
5.4.120.0070.04012.04
5.4.110.0070.03512.03
5.4.100.0060.03512.03
5.4.90.0080.04612.03
5.4.80.0060.04112.03
5.4.70.0050.03512.02
5.4.60.0030.03712.02
5.4.50.0100.03312.02
5.4.40.0040.05112.02
5.4.30.0070.03512.01
5.4.20.0040.03912.00
5.4.10.0080.03312.01
5.4.00.0030.04011.50
5.3.290.0080.03812.80
5.3.280.0070.03712.71
5.3.270.0060.03812.72
5.3.260.0080.03812.72
5.3.250.0070.03612.72
5.3.240.0040.03912.72
5.3.230.0070.03612.71
5.3.220.0060.03712.68
5.3.210.0040.04112.68
5.3.200.0070.03712.68
5.3.190.0100.04712.68
5.3.180.0100.04612.68
5.3.170.0060.04512.67
5.3.160.0080.04012.67
5.3.150.0130.04512.68
5.3.140.0060.04712.66
5.3.130.0090.05712.66
5.3.120.0090.03812.66
5.3.110.0080.03812.66
5.3.100.0070.03612.13
5.3.90.0060.04512.10
5.3.80.0090.03512.09
5.3.70.0060.03712.10
5.3.60.0050.03812.08
5.3.50.0050.04112.03
5.3.40.0040.04312.03
5.3.30.0020.03811.99
5.3.20.0080.03611.77
5.3.10.0060.03411.73
5.3.00.0060.03611.72
5.2.170.0050.0309.22
5.2.160.0050.0289.22
5.2.150.0060.0329.22
5.2.140.0040.0459.22
5.2.130.0040.0339.18
5.2.120.0050.0309.18
5.2.110.0030.0309.19
5.2.100.0100.0339.18
5.2.90.0050.0309.18
5.2.80.0070.0399.18
5.2.70.0050.0349.18
5.2.60.0040.0329.13
5.2.50.0050.0299.10
5.2.40.0050.0339.07
5.2.30.0030.0319.05
5.2.20.0030.0309.05
5.2.10.0060.0268.95
5.2.00.0050.0288.81
5.1.60.0050.0278.09
5.1.50.0040.0258.09
5.1.40.0030.0258.07
5.1.30.0050.0378.43
5.1.20.0060.0298.45
5.1.10.0050.0258.17
5.1.00.0050.0288.17
5.0.50.0030.0216.64
5.0.40.0060.0166.50
5.0.30.0030.0316.31
5.0.20.0050.0186.28
5.0.10.0050.0216.25
5.0.00.0030.0306.25
4.4.90.0020.0164.78
4.4.80.0000.0184.75
4.4.70.0030.0164.75
4.4.60.0060.0124.76
4.4.50.0030.0154.77
4.4.40.0040.0234.71
4.4.30.0000.0184.76
4.4.20.0040.0144.84
4.4.10.0030.0154.84
4.4.00.0020.0254.76
4.3.110.0030.0154.67
4.3.100.0050.0154.67
4.3.90.0050.0184.64
4.3.80.0040.0234.58
4.3.70.0030.0154.63
4.3.60.0070.0114.62
4.3.50.0040.0144.63
4.3.40.0030.0244.54
4.3.30.0010.0173.30
4.3.20.0030.0153.28
4.3.10.0020.0183.23
4.3.00.0030.0206.91

preferences:
137.43 ms | 1394 KiB | 7 Q