gistfile1.txt

public $parents = array();
function loadParent($rootID=NULL){
	$rootID = $rootID ?: $this->d_rootId;
	$parent = $this->findone(['d_id = ?', $rootID]);
	$this->parents[] = $parent;
	if (!$parent->d_rootId)
		return 'test';	
	else
		$this->loadParent($parent->d_rootId);                  
}