PHP获取IP的方式
//方法一
$ip = $_SERVER['REMOTE_ADDR'];
echo $ip;
//方法二
$user_IP = ($_SERVER['HTTP_VIA']) ? $_SERVER['HTTP_X_FORWARDED_FOR']:$_SERVER['REMOTE_ADDR'];
$user_IP = ($user_IP) ? $user_IP : $SERVER['REMOTE_ADDR'];
echo $user_IP;
//方法三
function getRealIp()
{
$ip = false;
if(!empty($_SERVER['HTTP_CLIENT_IP'])){
$ip = $_SERVER['HTTP_CLIENT_IP'];
}
if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
$ips = explode(", ",$_SERVER['HTTP_X_FORWARDED_FOR']);
if($ip){
array_unshift($ips, $ip);
$ip = false;
}
for($i = 0; $i < count($ips); $i++){
if(!eregi("^(10│172.16│192.168).", $ips[$i])){
$ip = $ips[$i];
break;
}
}
}
return ($ip ? $ip : $_SERVER['REMOTE_ADDR']);
}
echo getRealIp();
//方法四
if($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"])
{
$ip = $HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"];
}
elseif($HTTP_SERVER_VARS["HTTP_CLIENT_IP"])
{
$ip = $HTTP_SERVER_VARS["HTTP_CLIENT_IP"];
}
elseif($HTTP_SERVER_VARS["REMOTE_ADDR"])
{
$ip = $HTTP_SERVER_VARS["REMOTE_ADDR"];
}
elseif(getenv("HTTP_X_FORWARDED_FOR"))
{
$ip = getenv("HTTP_X_FORWARDED_FOR");
}
elseif(getenv("HTTP_CLIENT_IP"))
{
$ip = getenv("HTTP_CLIENT_IP");
}
elseif(getenv("REMOTE_ADDR"))
{
$ip = getenv("REMOTE_ADDR");
}
else
{
$ip = "Unknown";
}
echo $ip;
//方法五
if(getenv("HTTP_CLIENT_IP")){
$onlineip = getenv("HTTP_CLIENT_IP");
}elseif(getenv("HTTP_X_FORWARDED_FOR")){
$onlineip = getenv("HTTP_X_FORWARDED_FOR");
}elseif(getenv("REMOTE_ADDR")){
$onlineip = getenv("REMOTE_ADDR");
}else{
$onlineip = $HTTP_SERVER_VARS("REMOTE_ADDR");
}
echo $onlineip;
//方法六
print "您的IP地址是：";
if(!empty($_SERVER["HTTP_CLIENT_IP"])){
$cip = $_SERVER["HTTP_CLIENT_IP"];
}
elseif(!empty($_SERVER["HTTP_X_FORWARDED_FOR"])){
$cip = $_SERVER["HTTP_X_FORWARDED_FOR"];
}
elseif(!empty($_SERVER["REMOTE_ADDR"])){
$cip = $_SERVER["REMOTE_ADDR"];
}
else{
$cip = "无法获取";
}
print $cip;