function save() {
		if (!$this->id)
			$this->id=uniqid(NULL,TRUE);
		$_SESSION[$this->key][$this->id]=$this->item;
		return $this->item;
	}
function save() {
		if (!$this->id)
			$this->id=uniqid(NULL,TRUE);
		$_SESSION[$this->key][$this->id]=$this->item;
		return $this->item;
	}
function save ( ) { if ( ! $ this -> id ) $ this -> id = uniqid ( NULL , TRUE ) ; $ _SESSION [ $ this -> key ] [ $ this -> id ] = $ this -> item ; return $ this -> item ; }
Save current item
@return array
Save current item