根据IP判断归属地区

function getIPLoc_sina($queryIP){
    $url = 'http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip='.$queryIP;
    $ch = curl_init($url);
    //curl_setopt($ch,CURLOPT_ENCODING ,'utf8');
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true) ; // 获取数据返回
    $location = curl_exec($ch);
    $location = json_decode($location);
    curl_close($ch);

    $loc = "";
    if($location===FALSE) return "";
    if (empty($location->desc)) {
        $loc = $location->province."-".$location->city.$location->district.$location->isp;
    }else{
        $loc = $location->desc;
    }
    return $loc;
}