number combinations

[spfoonnewb]

Hi,

 

I have created this script to generate number combinations for variables given, with the amount of variables selected..

 

So say you choose the number 10, and 3 total variables, the following should appear:

 

5 + 2 + 3,

2 + 4 + 6

..and so on

 

I have written the script below, and it only displays combinations where any extra numbers other than the first one are the same.. I need the numbers to all be different.

 

So instead of what I want, it shows like:

 

4 + 2 + 2

8 + 1 + 1

..and so on

 

The second two (or more) numbers are always the same..

 

<?php

//Number you wish to add up to
$n = 10;

//How many total variables there is already 2 present.. so its + how ever many
$w = 1;

for ($ima = 1; $ima <= $n; ++$ima) {
    $num[] = $ima;
    foreach ($num as $v) {
        
        $nar = array('');
        
       	$str = "$ima + $v ".str_repeat("+ $v ", $w)."";
        
        if (!in_array($str, $nar)) {
            $nar[] = $str;
        }
        
        echo "<pre>".print_r($nar)."</pre>";
    }
}
?>