public function sort()
    {
        if (!$this->_sorted && is_array($this->_ids)) {
            $this->_sort($this->_ids);
            $this->_sorted = true;
        }
    }
public function sort()
    {
        if (!$this->_sorted && is_array($this->_ids)) {
            $this->_sort($this->_ids);
            $this->_sorted = true;
        }
    }
public function sort ( ) { if ( ! $ this -> _sorted && is_array ( $ this -> _ids ) ) { $ this -> _sort ( $ this -> _ids ) ; $ this -> _sorted = true ; } }
Sorts the IDs.
Sorts the IDs .