php获取客服端口IP 以及物理地址 网络

<?php
function getIP()
{
static $realip;
if (isset($_SERVER)){
if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])){
$realip = $_SERVER["HTTP_X_FORWARDED_FOR"];
} else if (isset($_SERVER["HTTP_CLIENT_IP"])) {
$realip = $_SERVER["HTTP_CLIENT_IP"];
} else {
$realip = $_SERVER["REMOTE_ADDR"];
}
} else {
if (getenv("HTTP_X_FORWARDED_FOR")){
$realip = getenv("HTTP_X_FORWARDED_FOR");
} else if (getenv("HTTP_CLIENT_IP")) {
$realip = getenv("HTTP_CLIENT_IP");
} else {
$realip = getenv("REMOTE_ADDR");
}
}
return $realip;
}
function getCity($ip = '')
{
global $a_country,$a_area,$a_region,$a_city,$a_isp;
$taobao = 'http://ip.taobao.com/service/getIpInfo.php?ip=';
$url = $taobao.$ip;
$json = file_get_contents($url);
$json = json_decode($json, true);
$a_country=$json['data']['country'];
$a_area=$json['data']['area'];
$a_region=$json['data']['region'];
$a_city=$json['data']['city'];
$a_isp=$json['data']['isp'];
}
$kip=getIP();
getCity($kip);
$doli=$a_country.$a_area.$a_region.$a_city." ".$a_isp;
echo "你的ip是：" . $kip . "<br>";
echo "你的其他信息是：" . $doli . "<br>";
/**
* 获取 IP  地理位置
* 淘宝IP接口
* @Return: array

function getCity($ip = '')
{

$url="http://ip.taobao.com/service/getIpInfo.php?ip=".$ip;
$ip=json_decode(file_get_contents($url));
if((string)$ip->code=='1'){
return false;
}
$data = (array)$ip->data;
return $data;
}

echo "<br>";

$ak=remote_ip_info.city;

$kip=getIP();

echo "<br>";
var_dump(getCity($kip));

echo "<br>";
echo "你的ip是：" . $kip . "<br>";
echo "你的其他：" . $ak . "<br>";
*/
?>