怎么确认域名是否被微信拦截?

$url = "http://api.monkeyapi.com";
$params = array(
‘appkey‘ =>‘appkey‘,//您申请的APPKEY
‘url‘ =>‘www.monkeyapi.com‘,//您需要检测的域名
);

$paramstring = http_build_query($params);
$content = monkeyCurl($url, $paramstring);
$result = json_decode($content, true);
if($result) {
    var_dump($result);
}else {
    //请求异常
}

/**
    * 请求接口返回内容
    * @param    string $url [请求的URL地址]
    * @param    string $params [请求的参数]
    * @param    int $ipost [是否采用POST形式]
    * @return    string
*/
function monkeyCurl($url, $params = false, $ispost = 0)
{
    $httpInfo = array();
    $ch = curl_init();

    curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 60);
    curl_setopt($ch, CURLOPT_TIMEOUT, 60);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    if ($ispost) {
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
        curl_setopt($ch, CURLOPT_URL, $url);
    }else {
        if ($params) {
            curl_setopt($ch, CURLOPT_URL, $url.‘?‘.$params);
        } else {
            curl_setopt($ch, CURLOPT_URL, $url);
        }
    }

    $response = curl_exec($ch);
        if ($response === FALSE) {
        //echo "cURL Error: " . curl_error($ch);
        return false;
    }

    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    $httpInfo = array_merge($httpInfo, curl_getinfo($ch));
    curl_close($ch);
    return $response;
}