public function last($n = 1) {
		if ($this->_count - $n < 0) {
			return NULL;
		}
		return $this->_stack[$this->_count - $n];
	}
public function last($n = 1) {
		if ($this->_count - $n < 0) {
			return NULL;
		}
		return $this->_stack[$this->_count - $n];
	}
public function last ( $ n = 1 ) { if ( $ this -> _count - $ n < 0 ) { return NULL ; } return $ this -> _stack [ $ this -> _count - $ n ] ; }
Return an entry from the stack without removing it

@param   integer  $n  number indicating how far back in the stack we want to look
@return  mixed
Return an entry from the stack without removing it