combination with replication, who knows?

[Anon]

Hi, I need a php function that return in array or not, the combination of a string given with replication, something like this:

string: php

the function print:
ppp
hhh
hpp
php
pph

Thanks.

[Anon]

I don't even understand what you are asking?

Are you trying to get a listing of all possible combinations/ercombinations of all characters in the input string, regardless of quantity, up to the string length of the input string?

That can add up to tens of thousands of returns in an 8-letter word...

[Anon]

Yes. It is exactly what I mean... Of course that I don't want more then 8-letter.

Leandro.

[Anon]

Here's something - it's sloppy, but it works and has been tested for dupes:

Function derfunct($in, $count)
{
IF ($count>2)
$in=derfunct($in, $count-1);
global $r;
reset($r);
foreach($r as $k)
{
reset($in);
foreach($in as $v)
$return[]=$v.$k;
}
return $return;
}

$a='abcdef';
for ($i=0; $i<strlen($a); $i++)
$t[$a[$i]]=1;
reset($t);
$r=array_keys($t);
reset($r);

$out=derfunct ($r, strlen($a));

while (list($k, $v)=each($out))
echo "$k=$v\n";

// HOPE THIS HELPS... =)