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Recursive function help

Discussion in 'PHP' started by stuart, Jun 17, 2009.

0
  1. #1
    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
     
    stuart, Jun 17, 2009 IP
  2. stuart

    stuart Guest

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    #2
    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
     
    stuart, Jun 18, 2009 IP