public function mset(array $items, $ttl = null)
	{
		foreach ($items as $key => $item) {
			$this->set($key, $item, $ttl);
		}

		return true;
	}
public function mset(array $items, $ttl = null)
	{
		foreach ($items as $key => $item) {
			$this->set($key, $item, $ttl);
		}

		return true;
	}
public function mset ( array $ items , $ ttl = null ) { foreach ( $ items as $ key => $ item ) { $ this -> set ( $ key , $ item , $ ttl ) ; } return true ; }
set multi items

@param   array $items

@return  boolean
set multi items