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7 number combiantions from an array

Fri, 21 May 2010 06:17:18 -0700

Please help me with this
<html>
: <head>
: <script>
: n = 20
: r = 5
:
: var combination = new Array(r);
:
: for(i=0; i<r; i++)
: combination[i] = 0;
:
: function getNextCombination(n, r) {
: if(combination[0]==0) { // First time here, make the initial combination
: for(i=0; i<r; i++)
: combination[i] = i+1;
: }
: else {
: // n+index-r is max value (index : 1 -> r)
: index = r;
: while(combination[index-1]==n+index-r && index>0)
: index--;
: if(index==0)
: return false;
: combination[index-1]++;
: for(index++; index<=r; index++)
: combination[index-1] = combination[index-2]+1;
: }
: return true;
: }
: function showNext() {
: val = getNextCombination(n, r);
: if(!val) // No more combinations found
: return val;
:
: txt = "";
: for(i in combination)
: txt+=combination[i]+", ";
:
: // Show the combination somewhere
: window.status = txt;
:
:
: return val;
: }
: function init() {
: for(p=0; p<50000 && showNext(); p++); // Shows the first 50000 combinations or as many as there are
: }
: </script>
: </head>
: <body onload="init()">
: </body>
: </html>

i want the same result in in php and my condition is i want to pass different king of numbers in . now this combinations goes sequence number like 1,2,3,4,5,6 and i want a combinations of different numbers from a array like i need a result of array(1,12,32,24,14) and r value is default 7 . can any one provide me a solution for this in php.

Thank in advance who ever helps me .

Re: 7 number combiantions from an array

Sun, 06 Jun 2010 18:26:26 -0700

Well, replace "<script>" for "<?php", "</script>" for "?>", delete the "var" word and add a "$" sign on each variable and you will get your php code ;)

Re: 7 number combiantions from an array

Mon, 07 Jun 2010 21:40:05 -0700

i did this before and some of the functions are not running like for(i in var).

Re: 7 number combiantions from an array

Tue, 08 Jun 2010 16:59:59 -0700

I missed a few more changes you have to do:

$combination = array();
...
...

function getNextCombination
global $combination; <------------ add this as function first line
...
...

function showNext
global $combination, $n, $r; <-------- add this line
...
...

Replace this:
for(i in combination)
txt+=combination[i]+", ";
window.status = txt;

With this:
foreach ($combination as $c)
$txt.=$c.", ";
echo $txt."<br>";

Delete all html code, and the last line shoud be:
init();

I thinks now you can get it!

Re: 7 number combiantions from an array

Wed, 09 Jun 2010 21:51:46 -0700

Thank you very much CJNimes. I got the result Hurrey..