怎么调用外网接口

现在想调用同程旅游的机票数据，该如何调用？

接口文档发给我没看懂，本人是做前端的，php不太了解

回复内容：

现在想调用同程旅游的机票数据，该如何调用？

接口文档发给我没看懂，本人是做前端的，php不太了解

后台处理的话curl 或者 fsockopen发http请求，前端处理的花就如 @baofan 所说ajax请求。

贴个代码

<code> protected function post($url, $post_data = '', $trade_type='APP', $certificate = false, $timeout = 30){
        $ch = curl_init();
        //设置超时
        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);

        //如果有配置代理这里就设置代理
        if($this->config['CURL_PROXY_HOST'] != "0.0.0.0"
            && $this->config['CURL_PROXY_PORT'] != 0){
            curl_setopt($ch,CURLOPT_PROXY, $this->config['CURL_PROXY_HOST']);
            curl_setopt($ch,CURLOPT_PROXYPORT, $this->config['CURL_PROXY_PORT']);
        }
        curl_setopt($ch,CURLOPT_URL, $url);
        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,TRUE);
        curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,2);//严格校验
        //设置header
        curl_setopt($ch, CURLOPT_HEADER, FALSE);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($ch,CURLOPT_CAINFO, $this->config['ssl_public_path']);
        
        if($certificate == true){
            //设置证书
            //使用证书：cert 与 key 分别属于两个.pem文件
            if (strtoupper($trade_type) == "APP"){
                curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
                curl_setopt($ch,CURLOPT_SSLCERT, $this->config['open']['ssl_cert_path']);
                curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
                curl_setopt($ch,CURLOPT_SSLKEY, $this->config['open']['ssl_key_path']);
            }else{
                curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
                curl_setopt($ch,CURLOPT_SSLCERT, $this->config['mp']['ssl_cert_path']);
                curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
                curl_setopt($ch,CURLOPT_SSLKEY, $this->config['mp']['ssl_key_path']);
            }
        }
        //post提交方式
        curl_setopt($ch, CURLOPT_POST, TRUE);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
        //运行curl
        $data = curl_exec($ch);
        //返回结果
        if($data){

            curl_close($ch);
            return $data;
        } else {
            curl_close($ch);
            return "xxx";
        }
    }</code>

再贴个fsockopen的,这个是为了异步的,所以没接收数据.

<code>public function async_post($host,$path,$data){

        $post = http_build_query($data);
        $len = strlen($post);
        $fp = @fsockopen( $host , 80, $errno, $errstr, 5);
        if (!$fp) {
            return false;
        } else {

            $out = "POST $path HTTP/1.1\r\n";
            $out .= "Host: $host\r\n";
            $out .= "Content-type: application/x-www-form-urlencoded\r\n";
            $out .= "Connection: Close\r\n";
            $out .= "Content-Length: $len\r\n";
            $out .= "\r\n";
            $out .= $post."\r\n";
            fwrite($fp, $out);
            fclose($fp);
            return true;
        }
    }</code>

发http请求呗，js不是有ajax嘛

ajax有跨域可以用jsonp
PHP有CURL

认为这种机票数据最好应该在后台处理，前台和后台确定好格式后，对前端就只是一个展示。原因是若第三方的接口url 发生改变或者通信格式发生改变，只需要更改后台和第三方交互的部分，对前端毫无感知，这样无论从开发还是升级都是更方便的