public function popState()
		{
		$r = array_pop($this->states);
		$this->state = $this->states[count($this->states) - 1];
		return $r;
		}
public function popState()
		{
		$r = array_pop($this->states);
		$this->state = $this->states[count($this->states) - 1];
		return $r;
		}
public function popState ( ) { $ r = array_pop ( $ this -> states ) ; $ this -> state = $ this -> states [ count ( $ this -> states ) - 1 ] ; return $ r ; }
Remove the last state of the state stack and return the removed stack value.

@return integer Removed state value
Remove the last state of the state stack and return the removed stack value .