@ 2013-12-25T04:09:52Z <?php
function computeCombination(array $source,$picks,$startIndex=0,array $pad=array())
{
if($picks<=0)
{
return $pad;
}
elseif($picks>=count($source)-$startIndex)
{
return array_merge($pad,array_slice($source,$startIndex));
}
$result=array();
foreach(range($startIndex,count($source)-$picks) as $subStartIndex)
{
$subPad=$pad;
$subPad[]=$source[$subStartIndex];
$result=array_merge($result,array(computeCombination($source,$picks-1,$subStartIndex+1,$subPad)));
}
return $result;
}
print_r(computeCombination(array(1,2,3,4,5),2));
Enable javascript to submit You have javascript disabled. You will not be able to edit any code.
Output for 5.1.0 - 5.1.6 , 5.2.0 - 5.2.17 , 5.3.0 - 5.3.29 , 5.4.0 - 5.4.45 , 5.5.0 - 5.5.35 , 5.6.0 - 5.6.28 , 7.0.0 - 7.0.20 , 7.1.0 - 7.1.33 , 7.2.6 - 7.2.33 , 7.3.0 - 7.3.33 , 7.4.0 - 7.4.33 , 8.0.0 - 8.0.30 , 8.1.0 - 8.1.28 , 8.2.0 - 8.2.18 , 8.3.0 - 8.3.6 Array
(
[0] => Array
(
[0] => Array
(
[0] => 1
[1] => 2
)
[1] => Array
(
[0] => 1
[1] => 3
)
[2] => Array
(
[0] => 1
[1] => 4
)
[3] => Array
(
[0] => 1
[1] => 5
)
)
[1] => Array
(
[0] => Array
(
[0] => 2
[1] => 3
)
[1] => Array
(
[0] => 2
[1] => 4
)
[2] => Array
(
[0] => 2
[1] => 5
)
)
[2] => Array
(
[0] => Array
(
[0] => 3
[1] => 4
)
[1] => Array
(
[0] => 3
[1] => 5
)
)
[3] => Array
(
[0] => 4
[1] => 5
)
)
Output for 5.0.0 - 5.0.5 <br />
<b>Parse error</b>: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in <b>/in/Uoe2H</b> on line <b>2</b><br />
Process exited with code 255 . Output for 4.4.2 - 4.4.9 <br />
<b>Parse error</b>: syntax error, unexpected T_ARRAY, expecting ')' in <b>/in/Uoe2H</b> on line <b>2</b><br />
Process exited with code 255 . Output for 4.3.0 - 4.3.1 , 4.3.5 - 4.3.11 , 4.4.0 - 4.4.1 <br />
<b>Parse error</b>: parse error, unexpected T_ARRAY, expecting ')' in <b>/in/Uoe2H</b> on line <b>2</b><br />
Process exited with code 255 . Output for 4.3.2 - 4.3.4 <br />
<b>Parse error</b>: parse error, expecting `')'' in <b>/in/Uoe2H</b> on line <b>2</b><br />
Process exited with code 255 . preferences:dark mode live preview
256.27 ms | 401 KiB | 373 Q