Finding all non-conflicting combinations of values from multiple lists of values

Question

I have the following array which contains arrays of values:

$array = array(
    array(\'1\', \'2\'),
    array(\'a\', \'b\', \'c\'),
    array(\'x\', \'y\'),         


        

Answer 1

try this :

function algorithmToCalculateCombinations($n, $elems) {
        if ($n > 0) {
            $tmp_set = array();
            $res = algorithmToCalculateCombinations($n - 1, $elems);
            foreach ($res as $ce) {
                foreach ($elems as $e) {
                    array_push($tmp_set, $ce . $e);
                }
            }
            return $tmp_set;
        } else {
            return array('');
        }
    }

$Elemen = array(range(0,9),range('a','z'));
$Length = 3;
$combinations = algorithmToCalculateCombinations($Length, $Elemen);