PHP 快速获取客户端IP地址及ip归属地

男娘i 2023-06-24 12:22 87阅读 0赞

一、获取客户端ip地址

function getClientIp(){ 
    if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))
        $ip = getenv("HTTP_CLIENT_IP");
    else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))
        $ip = getenv("HTTP_X_FORWARDED_FOR");
    else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
        $ip = getenv("REMOTE_ADDR");
    else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))
        $ip = $_SERVER['REMOTE_ADDR'];
    else
        $ip = "unknown";
    return($ip);
}

二、获取ip归属地

function getIpCity(string $ip = '')
{ 
    // 可以自己找第三方接口，返回数据不一样
    $url = "http://whois.pconline.com.cn/ip.jsp?ip=".$ip;
    $res = file_get_contents($url);
    // 因为这个接口返回的值gb2312编码，且有换行符，所以做以下处理
    return preg_replace("/\s/","", iconv("gb2312", "utf-8", $res));
}