php curl怎么删除爬出的服务器信息

Question

function curl_get($url){ $ch = curl_init(); curl_setopt($ch,CURLOPT_URL,$url); curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);//有返回值 curl_setopt($ch,CURLOPT_HEADER,1);//取消head头 // curl_setopt($ch, CURLOPT_HTTPHEADER, array( // 'Content-Type: application/json; charset=utf-8' // ) // ); curl_setopt($ch,CURLOPT_USERAGENT,"Mozilla/5.0 (Windows; U; Windows NT 5.2) AppleWebKit/525.13 (KHTML, like Gecko) Chrome/0.2.149.27 Safari/525.13"); curl_setopt($ch,CURLOPT_TIMEOUT,15); curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);//规避https curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false); $output = curl_exec($ch); if($output == false){ curl_close($ch); return "error:".curl_error($ch); } curl_close($ch); return $output; } 爬出数据后var_dump结果是 我只要json那部分数据，其他数据怎么删除

Answer 1

curl_setopt($ch,CURLOPT_HEADER,1); 这个去掉。。。

Answer 2

curl_setopt($ch,CURLOPT_HEADER,0);

Answer 3

curl_setopt($ch,CURLOPT_HEADER,0);
这句将消息头设置为0就不返回响应头了