Online PHP editor | refs for nvO3j

<?php $array = array ( 1, array (1, 2, array ( 1, 2 ) ), array (1, 2, 3), 2, array( 1, array ( 1, array (1, 2) ) ) ); function findActives($array, $path_child=null){ foreach ($array as $key => $unknown ) { $path_child[] = $key; /* if (in_array('2') { $path_child = array($key, "active"); } */ if (is_array($unknown)) { findActives($unknown, $path_child); } } return ($path_child); } findActives($array); print_r($path_child);