Recursive function help

Hi

I need some help on how to make the following recursive.

<pre>
<?php
$array[1] = array("1a", "1b", "1c");
$array[2] = array("2a", "2b", "2c");
$array[3] = array("3a", "3b", "3c");

foreach ($array[1] as $value1 ){
	foreach ($array[2] as $value2 ){
		foreach ($array[3] as $value3 ){
			$result[] = $value1." ".$value2." ".$value3;
		}
	}
}
print_r($result);
?>
</pre>

PHP:

OK so that returns the 27 combinations but I need to occasionally input..

$array[1] = array("1a", "1b", "1c");
$array[2] = array("2a", "2b", "2c");
$array[3] = array("3a", "3b", "3c");
$array[4] = array("4a", "4b", "4c", "4d");

PHP:

or say just..

$array[1] = array("1a", "1b", "1c");
$array[2] = array("2a", "2b");

PHP:

Thanks in advance.
Stuart

 

Found the answer here...

tomscottmalden.wordpress.com/2009/04/20/php-recursive-iterations-in-arrays/

and here..

ask.metafilter.com/64554/Finding-combinations-in-PHP

Thanks