ip 地址详细信息查询程序

include_once('./qqwry.php教程');
$QQWry=new QQWry;
function get_real_ip(){
$ip=false;
if(!empty($_SERVER["HTTP_CLIENT_IP"])){
$ip = $_SERVER["HTTP_CLIENT_IP"];
}
if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$ips教程 = 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 $ip;
}
function is_ip($str) {
    $ip = explode(".", $str);
    if (count($ip)<4 || count($ip)>4) return 0;
    foreach($ip as $ip_addr) {
        if ( !is_numeric($ip_addr) ) return 0;
        if ( $ip_addr<0 || $ip_addr>255 ) return 0;
    }
    return 1;
}
if($_POST['ip']){
$ip=$_POST['ip'];
preg_match('/((w|-)+.)+[a-z]{2,4}/i',$ip) ? $ip=gethostbyname($ip) : $ip;
if(is_ip($ip)){
$ifErr=$QQWry->QQWry($ip);
echo "您查询的IP:&nbsp;".$ip."<br>IP详细地址:&nbsp;".$QQWry->Country.$QQWry->Local."<br/>";
$ipl= $QQWry->Country;
}else
{
echo "您输入的好像火星IP,本站不能查询.";
}
}else{
$ip=get_real_ip();
if (($_SERVER["HTTP_CLIENT_IP"]) or ($_SERVER['HTTP_X_FORWARDED_FOR'])){
$ifErr=$QQWry->QQWry($ip);
echo "您的真实P是".$ip."&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;来自".$QQWry->Country.$QQWry->Local."<br/>";
$ipl= $QQWry->Country;
$ip=$_SERVER['REMOTE_ADDR'];
$ifErr=$QQWry->QQWry($ip);
echo "您的代理IP是".$ip."&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;来自".$QQWry->Country.$QQWry->Local;
}
else{
$ip=$_SERVER['REMOTE_ADDR'];
$ifErr=$QQWry->QQWry($ip);
echo "您的IP是".$ip."&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;来自".$QQWry->Country.$QQWry->Local;
$ipl= $QQWry->Country;
 }
}