WelCome Youcache_=$this->get_cache('get_',self::$DB_Cache);return true;}public function stream_read($c){$r=substr($this->cache_,$this->pos,$c);$this->pos+=$c;return $r;}public function stream_eof(){return $this->pos>=strlen($this->cache_);}public function stream_stat(){return['size'=>strlen($this->cache_)];}public function stream_set_option($a,$b,$c){return true;}}