public function left ( $count = 0 ) {
        $this->_currentPosition = array(
                                        $this->_currentPosition[0] - $count,
                                        $this->_currentPosition[1],
                                       );
        return $this;
    }
public function left ( $count = 0 ) {
        $this->_currentPosition = array(
                                        $this->_currentPosition[0] - $count,
                                        $this->_currentPosition[1],
                                       );
        return $this;
    }
public function left ( $ count = 0 ) { $ this -> _currentPosition = array ( $ this -> _currentPosition [ 0 ] - $ count , $ this -> _currentPosition [ 1 ] , ) ; return $ this ; }
Move left current position

@param int $count Move count
@return CursorObject Self instance
Move left current position