string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E7%AB%99%E6%80%BB%E6%98%AF%E8%A2%AB%E6%94%BB%E5%87%BB%E6%80%8E%E4%B9%88%E5%8A%9E => Failed to connect to 14.18.117.71 port 38164: Connection refused"
网站总是被攻击怎么办
