php傳輸會話curl函數的使用實例分享

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##PHP 傳輸會話curl函數的實例詳解

前言：

 接手公司專案PC端負責人的重擔，責任擔當重大；從需求分析，畫出流程圖，建表，編碼，測試修bug，上線維護等我一個光桿司令一人完成(當然還有一個技術不錯的前端配合,感謝主管的幫助)，雖然累點加班多點但感覺還行吧，公司都是一個鳥樣。

  閒話不多說了，因為專案中經常需要調取java那邊的接口，既然涉及到請求接口那就有了http的請求方式，PHP常見的是GET/POST兩種當然還有其他的比如put等，java那邊常用到GET/POST/PUT/DELETE等方式，請求接口當然要用到curl的相關函數了，都是看文檔調試的希望大家都看文檔，下面是我封裝好的相關函數等(大概總結下，已調通)：

範例程式碼：

##

    private $serverhost = "https://demo.xxx.cn"; //测试
    /**
     * 请求接口封装  get/post/put/delete等
     * access public
     * @param string $url 接口地址
     * @param string $params 参数
     * @param string $type 类型 get/post/put/delete
     * @return bool/array
     */
     public function getcurldata($url,$params,$type="get"){
        $url = $this->serverhost.$url;
 
        $response = array();
        if($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, CURLOPT_URL, $url);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
         curl_setopt($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, true);
         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
         curl_setopt($ch, CURLOPT_HTTPHEADER, $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_URL, $url);
          curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
          curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
          curl_setopt($ch, CURLOPT_PUT, true); //注意这几行
          curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
          //curl_setopt($ch, CURLOPT_HEADER, true);
          curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
          curl_setopt($ch, CURLOPT_HTTPHEADER, $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,$params,"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,$params,"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';
       */
 
       //获取请求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;
    }

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