接三方一些总结

方式：
　　1.证书 （https://www.cnblogs.com/hanling/p/12411318.html）
　　2.Authentication: Basic Auth

$arr_header[] = "Content-Type:application/json";
$arr_header[] = "Authorization:Basic ".base64_encode($username.":".$password);

$arr_header[] = "Accept: application/json";
$result = $this->_curl($param, $url, 'GET', $run_time, $arr_header);

public function _curl($data, $url = '', $method = 'GET', &$run_time = 0, $headers = []) {
    $start_time = intval(microtime(true) * 1000);
    $curl = curl_init();
    if ($method == 'POST') {
        curl_setopt($curl, CURLOPT_POST, true);
        if(!is_array($data)) {
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        } else {
            curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($data));
        }
    } else {
        $url .= '?' . http_build_query($data);
    }

    if(!empty($headers)) {
        curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
    }
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10);
    curl_setopt($curl, CURLOPT_TIMEOUT, 30);
    $res = curl_exec($curl);
    $arrRet = json_decode($res, true);
    curl_close($curl);
    $end_time = intval(microtime(true) * 1000);
    $run_time = $end_time - $start_time;
    return $arrRet;
}

3.验签