php之获取访客IP

美奇科技

<?php
$iipp=$_SERVER["REMOTE_ADDR"];
echo$iipp;
?>[/code][code]<?php
$user_IP=($_SERVER["HTTP_VIA"])?$_SERVER["HTTP_X_FORWARDED_FOR"]:$_SERVER["REMOTE_ADDR"];
$user_IP=($user_IP)?$user_IP:$_SERVER["REMOTE_ADDR"];

echo$user_IP;
?>



<?php
functionget_real_ip(){
$ip=false;
if(!empty($_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']);
}

echoget_real_ip();
?>




<?php
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
{
$ip="Unknown";
}
echo"你的IP:".$ip;
?>





<?php
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;
?>