Provide HTTP GET and POST tests for any interface, and provide test return values ??and interface return times. Abnormal status data will be obtained later.
The front end of the code gets the form data, ajax goes to the backend, and php uses parameters to simulate the request and return the data.

header('Content-type:text/html;charset=utf-8');
function fly_curl($url, $postFields = null) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.1)');
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_FAILONERROR, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    //curl_setopt($ch,CURLOPT_HTTPHEADER,array("Expect:"));
    if (is_array($postFields) && 0 < count($postFields)) {
        $postBodyString = "";
        $postMultipart = false;
        //判斷是不是文件上傳
        foreach ($postFields as $k => $v) {
            if("@" != substr($v, 0, 1)) {
                $postBodyString .= "$k=" . urlencode($v) . "&";
            }
            //文件上傳用multipart/form-data，否則用www-form-urlencoded
            else {
                $postMultipart = true;
            }
        }
        unset($k, $v);
        curl_setopt($ch, CURLOPT_POST, 1);
        if ($postMultipart) {
            curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
        }
        else {
            //var_dump($postBodyString);
            curl_setopt($ch, CURLOPT_POSTFIELDS, substr($postBodyString,0,-1));
        }
    }
    $reponse = curl_exec($ch);
    //return curl_getinfo($ch);
    if (curl_errno($ch)) {
        throw new Exception(curl_error($ch),0);
    }
    else {
        $httpStatusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        if (200 !== $httpStatusCode) {
            throw new Exception($reponse,$httpStatusCode);
        }
    }
    curl_close($ch);
    return $reponse;
}
function microtime_float(){
    list ($usec, $sec) = explode(" ", microtime());
    return ((float) $usec + (float) $sec);
}