PHP 传输会话curl函数的实例详解

    $response = array();
    if($type == 'get'){ //get请求
      //请求头可以加其他设置
      $headers = array(
          'Content-type: application/json;charset=UTF-8',);
      $ch = curl_init();
      curl_setopt($ch,CURLOPT_URL,$url);
      curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
      curl_setopt($ch,CURLOPT_FOLLOWLOCATION,TRUE);
      curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,0);
      curl_setopt($ch,CURLOPT_HTTPHEADER,$headers);
      $response = curl_exec($ch);

   }elseif ($type == 'post'){  //post请求

     $headers = array(
        'Content-type: application/json;charset=UTF-8',);
     $ch = curl_init();
     curl_setopt($ch,$url);
     curl_setopt($ch,true);
     curl_setopt($ch,TRUE);
     curl_setopt($ch,CURLOPT_POST,true);  //注意这几行
     curl_setopt($ch,CURLOPT_POSTFIELDS,$params); //注意这几行
     //curl_setopt($ch,CURLOPT_HEADER,0);
     curl_setopt($ch,$headers);
     $response = curl_exec($ch);

   }elseif ($type == 'put'){ //put请求

      $headers = array(
           'Content-type: application/json;charset=UTF-8',);

      $ch = curl_init();
      curl_setopt($ch,CURLOPT_PUT,true); //注意这几行
      curl_setopt($ch,$params);
      //curl_setopt($ch,$headers);
      $response = curl_exec($ch);
   }

   return $response;
} 

//如何调用上面代码
//get方式
/**

• 查询我创建过的班级

• @param string $url 接口地址

• @param string $params 参数

• @param string $type 类型 get

• @return array
  */
  public function mycreateclass($userid){

  $url = "/xxx/xxxx/xxxx/".$userid; //请求地址拼接
  $response = $this->getcurldata($url,array(),"get");
  $createdclass = json_decode($response,true); //返回json格式数据

  return $createdclass;
  }
  /** post方式请求

• 用户登录判断

• access public

• @param string $username 用户名

• @param string $password 密码

• @return bool
  */
  public function getlogin($username,$password)
  {
  //要post的数据
  $params = array(
  "username" => $username,"password" => $password
  );
  $params = json_encode($params,64|256);
  $uri = "/xxx/xxx/login";
  $response = $this->getcurldata($uri,"post");
  $result = json_decode($response,true);

  return $result ;
}

 /*身份转换--put 请求
  */
 public function changeuserole($token){
     //要put的数据
    $params = array();
    $params = json_encode($params,64|256);

    $uri = "/xxx/xxx/xxx/".$token."/";
    $response = $this->getcurldata($uri,"put");
    $result = json_decode($response,true);

    //dump($result);die;

    return $result;
 }

//还有一个delete方式 大家自己参考文档调试下吧
上面3个请求方式都是单次请求(即请求一次)***
PHP自带函数curl_multi_get_contents函数(thinkPHP自带此函数，可以微调下)：
/**

• 批量发起请求 已调通

• curl multi POST数据

• */
  public function curl_multi_get_contents($url=array(),$param = array(),$timeout=1000){
  $userAgent = 'Mozilla/4.0+(compatible;+MSIE+6.0;+Windows+NT+5.1;+SV1)';
  $headers = array(
  'Content-type: application/json;charset=UTF-8',);
  $curl_array=array();
  $mh = curl_multi_init();
  foreach($url as $uk=>$uv){
  $curl_array[$uk] = curl_init();
  }
  unset($uk,$uv);
  foreach($url as $uk=>$uv) {
  $options = array(
  CURLOPT_URL => $uv,CURLOPT_TIMEOUT => $timeout,CURLOPT_RETURNTRANSFER => true,CURLOPT_DNS_CACHE_TIMEOUT => 86400,CURLOPT_DNS_USE_GLOBAL_CACHE => true,CURLOPT_SSL_VERIFYPEER => 0,CURLOPT_HEADER => false,CURLOPT_USERAGENT => 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)',CURLOPT_HTTPHEADER => $headers,);
  if (isset($param[$uk])) {
  foreach ($param[$uk] as $_k => $_v) {
  //$options[$_k] = $_v;
  $optionsparam[$_k] = $_v;
  $options[CURLOPT_POSTFIELDS] = json_encode($optionsparam,64|256);
  }
  }

  curl_setopt_array($curl_array[$uk],$options);
  curl_multi_add_handle($mh,$curl_array[$uk]);
  unset($options);
  }
  unset($uk,$uv);
  $running = NULL;
  do {
  curl_multi_exec($mh,$running);
  } while($running > 0);

   $res = array();
   foreach($url as $uk=>$uv){
        $res[$uk] = curl_multi_getcontent($curl_array[$uk]);
   }
   unset($uk,$uv);
   foreach($url as $uk=>$uv){
       curl_multi_remove_handle($mh,$curl_array[$uk]);
   }
  unset($url,$curl_array,$uk,$uv);
  curl_multi_close($mh);
  return $res;

}
//如何调用--批量发起请求
//批量请求加入班级
public function batchjoinclass($token,$batchjoinclass){
$urlarr = $param = $returndata = array();

    $param = $batchjoinclass; //二维数组 格式如下

    /*
     $param[1]['name'] = '班级新1';
     $param[1]['iamge'] = 'xxx11.png';
     $param[1]['iamgeType'] = 'CUSTOM';
     $param[2]['name'] = '班级新2';
     $param[2]['iamge'] = 'xxx.png';
     $param[2]['iamgeType'] = 'CUSTOM';
   */

   //<a href="https://www.jb51.cc/tag/huoqu/" target="_blank" class="keywords">获取</a>请求url
   foreach($batchjoinclass as $key=>$val){
       $urlarr[$key] = $this->serverhost."/xxx/xxxx/xxxx/".$token;
    }

    $res = $this->curl_multi_get_contents($urlarr,$param);

    //格式化返回数据
    foreach($res as $key=>$val){
        $returndata[$key] = json_decode($val,true);
    }

    return $returndata;
}