[RESOLVED] recursion working down one tree but not others?

[bike5]

I wrote this function for parent/child relationship. 0 means it is the root parent. This works on the first root parent properly but exits after it runs down the first root parents tree. How do I fix it so after its done with the first root parent it will do the same for the other root parents?

Thanks,
-Danny

function _role_tree($roles, $parent = 0, $output = '', $extender = '', $x = 0)
{
	if($x>100) die('infinate loop error');

foreach($roles as $row)
{
	if($row['parent'] == $parent)
	{
		$role_permission_names = '';
		$x++;
		$permissions = explode(',',$row['perm']);
		if(count($permissions)>0)
		{
			$this->db->select('name');
			$this->db->from('permissions');
			foreach($permissions as $permission)
			{
				$this->db->orwhere(array('pid' => $permission));
			}
			$permission_result = $this->db->get();
			if($permission_result->num_rows() > 0)
			{
				foreach($permission_result->result() as $perm)
				{
					$role_permission_names .= $perm->name.', ';
				}
			}
		}
		$output .= $extender.$row['rid'].' - '.$row['name'].' - '.$role_permission_names.'<br />';	
		$output = $this->_role_tree($roles, $row['rid'], $output, $extender.'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;', $x);
	}
}
return $output;
}

Say I should get something like

X
--X
----X
----X
-------X
X
--X
X
X
--X
-----X

But my function will only produce

X
--X
----X
----X
-------X

[bike5]

Found the problem, it was not the function but the query sending in the data to the function.

I was using an active record class that only allowed "ON" when joining tables and I need the "USING" because when no matching join table was found it was inserting a null in place of my "rid" role id instead of the actual id thus making those not work in the function.