curl模板----php发送post,get请求

function _grab($curl,$ip='',$referer='',$postInfo='',$cookie=''){
     $ch = curl_init();
     curl_setopt($ch, CURLOPT_URL, $curl);
     //不输出头
     curl_setopt($ch, CURLOPT_HEADER, 0);
     //以字符串返回获取的信息，不直接输出
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

     //SOCKS代理
     if($ip){
        curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_BASIC);  //代理认证模式
        curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);
        $string_arr = explode(":", $ip);
        curl_setopt($ch, CURLOPT_PROXY, $string_arr[0]);
        curl_setopt($ch, CURLOPT_PROXYPORT, $string_arr[1]);
     }

     //如果是https链接，不验证证书
     if(substr_count($curl,'https')){
         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
     }
     //POST
     if($postInfo){
        curl_setopt($ch,CURLOPT_POST,1);
        curl_setopt($ch,CURLOPT_POSTFIELDS,$postInfo);
     }
     //加入cookie
     if($cookie){
         curl_setopt($ch,CURLOPT_COOKIE,$cookie);
     }
     //模拟来路
       if($referer){
        curl_setopt($ch, CURLOPT_REFERER, $referer);
       }

       //模拟浏览器
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36');

     //执行
     $content = curl_exec($ch);
     //错误处理
     if ($content  === false) {
       return "网络请求出错: " . curl_error($ch);
       exit();
     }
     return $content;
}

//php返回json

echo json_encode($data);

//php将返回的json转换成数组

json_decode($data,true);

//爬虫
function _grab($curl,$postInfo='',$cookie='',$referer=''){
     $ch = curl_init();
     curl_setopt($ch, CURLOPT_URL, $curl);
     //不输出头
     curl_setopt($ch, CURLOPT_HEADER, 0);
     //以字符串返回获取的信息，不直接输出
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

     //如果是https链接，不验证证书
     if(substr_count($curl,'https')){
         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
     }
     //POST
     if($postInfo){
        curl_setopt($ch,CURLOPT_POST,1);
        curl_setopt($ch,CURLOPT_POSTFIELDS,$postInfo);
     }
     //加入cookie
     if($cookie){
         curl_setopt($ch,CURLOPT_COOKIE,$cookie);
     }
     //模拟来路
     if($referer){
         curl_setopt($ch, CURLOPT_REFERER, $referer);
     }

       //模拟浏览器
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36');

     //执行
     $content = curl_exec($ch);
     //错误处理
     if ($content  === false) {
       return "网络请求出错: " . curl_error($ch);
       exit();
     }
     return $content;
}