织梦模板DEDECMS首页插入php代码显示访问者ip地址的代码

 {dede:php} 
 $user_IP = ($_SERVER["HTTP_VIA"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] : $_SERVER["REMOTE_ADDR"];  
 $user_IP = ($user_IP) ? $user_IP : $_SERVER["REMOTE_ADDR"];  
 function get_real_ip(){  
 $ip=false;  
 if(!emptyempty($_SERVER["HTTP_CLIENT_IP"])){  
 $ip = $_SERVER["HTTP_CLIENT_IP"];  
 }  
 if (!emptyempty($_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 "YOUR IP "." ". get_real_ip(); 
 {/dede:php}