search for a value in a multi dimensional array and get its path in PHP

Question

This is my array:

$array = array (
\'1\' => array(
  \'title\' => \'Level1\',
  \'nodes\' => array(
   \'11\' => array(\'title\' => \'sub1_company         


        

Answer 1

You need a recursive function, not an iterative one.

function breadcrumb($tree, $needle, &$result = array()) {

    $result = array();

    if (is_array($tree)) {
        foreach ($tree as $node) {
            if ($node['title'] == $needle) {
                $result[] = $node['title'];
                echo '1-';
                return true;
            } else if (!empty($node['nodes'])) {
                if (breadcrumb($node['nodes'], $needle, $result)){
                echo '2-';
                $result[] = $node['title'];
                return true;
                }
            }
        }
    } else {
        if ($tree == $needle) {
            echo '3-';
            $result[] = $tree;
            return true;
        }
    }
    return false;
}

breadcrumb($array, 'item1_sub3_company3', $result);

print_r($result);

The breadcrumb is inverted but you could use array_shift instead of push and you would have it the right way...