chunked编码有关问题

Array
(
    [0] => HTTP/1.1 200 OK

    [1] => Server: Dict/34002

    [2] => Date: Wed, 17 Dec 2014 06:49:22 GMT

    [3] => Content-Type: text/html; charset=utf-8

    [4] => Transfer-Encoding: chunked

    [5] => Connection: keep-alive

    [6] => Keep-Alive: timeout=60

    [7] => Cache-Control: private

    [8] => Last-Modified: Wed, 17 Dec 2014 04:57:49 GMT

    [9] => Expires: Wed, 17 Dec 2014 06:49:22 GMT

    [10] => Set-Cookie: uvid=VJEncoTSVYJC; expires=Thu, 31-Dec-37 23:55:55 GMT; domain=.dict.cn; path=/

    [11] => Content-Encoding: gzip

)

if($this->response_num==200)
        {
			if($this->is_chunked)
			{
				//读取chunk头部信息，获取chunk主体信息的长度
				$chunk_size = (int)hexdec(fgets($this->conn));
				//
				while(!feof($this->conn) && $chunk_size > 0) 
				{ 
					//读取chunk头部指定长度的信息
					$this->response_body .= fread( $this->conn, $chunk_size ); 
					fseek($this->conn, 2, SEEK_CUR);
					$chunk_size = (int)hexdec(fgets( $this->conn,4096)); 
			   } 
			}
			else
			{
				$len=0;
				//读取请求返回的主体信息
				while($items = fread($this->conn, $this->response_body_length))
				{
					$len = $len+strlen($items);
					$this->response_body = $items;
					
					//当读取完请求的主体信息后跳出循环，不这样做，貌似会被阻塞！！！
					if($len >= $this->response_body_length)
					{
						break;
					}
				}
			}
			
            if($this->is_gzip)
            {
                $this->response_body = gzinflate(substr($this->response_body,10));
            }
			
			$this->getTrans($this->response_body);

        }