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<?php $array1 = array(8,11,5,6,7); $array2 = array(1,2,3); $arrays = array($array1, $array2); function array_cartesian($arrays) { if(count($arrays) == 0) { return array(array()); } $a = array_shift($arrays); $c = array_cartesian($arrays); $r = array(); foreach($a as $v) { foreach($c as $p) { $r[] = array_merge(array($v), $p); } } return $r; } print_r(array_cartesian($arrays));
Output for 4.3.0 - 7.1.0
Array ( [0] => Array ( [0] => 8 [1] => 1 ) [1] => Array ( [0] => 8 [1] => 2 ) [2] => Array ( [0] => 8 [1] => 3 ) [3] => Array ( [0] => 11 [1] => 1 ) [4] => Array ( [0] => 11 [1] => 2 ) [5] => Array ( [0] => 11 [1] => 3 ) [6] => Array ( [0] => 5 [1] => 1 ) [7] => Array ( [0] => 5 [1] => 2 ) [8] => Array ( [0] => 5 [1] => 3 ) [9] => Array ( [0] => 6 [1] => 1 ) [10] => Array ( [0] => 6 [1] => 2 ) [11] => Array ( [0] => 6 [1] => 3 ) [12] => Array ( [0] => 7 [1] => 1 ) [13] => Array ( [0] => 7 [1] => 2 ) [14] => Array ( [0] => 7 [1] => 3 ) )