PHP通用CURL类，可POST/GET/文件传输

function do_curl($url, $params = array(), $upload = false, $type = 'POST'){    $method = strtoupper($type);    if ($method == 'GET') {        $url = "{
   $url}?" . http_build_query($params);    }    $ch = curl_init();    // $header[] = "User-Agent:Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36";    // //定义请求类型    //       curl_setopt($ch, CURLOPT_HTTPHEADER, $header);    curl_setopt($ch, CURLOPT_URL, $url);    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);    // curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);    // 是否检测服务器的证书是否由正规浏览器认证过的授权CA颁发的    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);    // 是否检测服务器的域名与证书上的是否一致    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);    // var_dump($params);die;    if ($method == 'POST') {        if ($upload) {        //设置上传文件            $file = new \CURLFile($upload['tmp_name'], $upload['type'], $upload['name']);            $params[$upload['get_name']] = $file;        }        @curl_setopt($ch, CURLOPT_POST, 1);        @curl_setopt($ch, CURLOPT_POSTFIELDS, $params);    }    $result = curl_exec($ch);    curl_close($ch);    if ($result === null || $result === false) {        $this->error('操作出错！');    } else {        return $result;    }}