求查ip的语句！

[jazzard]

同上

[jazzard]

能查ip地址的

[fangwei1]

//获取客户端ip
function getIp() {
$ip1 = getenv("REMOTE_ADDR")?getenv("REMOTE_ADDR"):"none";
$ip2 = getenv("HTTP_X_FORWARDED_FOR")?getenv("HTTP_X_FORWARDED_FOR"):"none";
$ip3 = getenv("HTTP_CLIENT_IP")?getenv("HTTP_CLIENT_IP"):"none";
if (isset($ip1) && $ip1 != "none" && $ip1 != "unknown") {
return $ip1;
}
elseif (isset($ip2) && $ip2 != "none" && $ip2 != "unknown") {
return $ip2;
}
elseif (isset($ip3) && $ip3 != "none" && $ip3 != "unknown") {
return $ip3;
}
else {
return "none";
}
}

[zhiin1]

function getip()
{
return !empty($_SERVER['HTTP_CLIENT_IP']) ? $_SERVER['HTTP_CLIENT_IP'] : (!empty($_SERVER['HTTP_X_FORWARDED_FOR']) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : $_SERVER['REMOTE_ADDR']);
}

[four498]

学习中，帮顶！

[山雨欲来-风满楼]

不错，就是这三个IP地址，可以准确得到公网IP和私网IP

[jazzard]

$_SERVER['HTTP_CLIENT_IP']和$_SERVER['ROMOTE_ADDR']有什么区别啊？？
$_SERVER['HTTP_X_FORWARDED_FOR']是什么意思啊？？
$_SERVER['HTTP_CLIENT_IP']和$_SERVER['HTTP_X_FORWARDED_FOR']我的书上都没有诶！

[jekexys2004]

帮顶

[antidestiny]

function GetIP(){
if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))
$ip = getenv("HTTP_CLIENT_IP");
else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))
$ip = getenv("HTTP_X_FORWARDED_FOR");
else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
$ip = getenv("REMOTE_ADDR");
else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))
$ip = $_SERVER['REMOTE_ADDR'];
else
$ip = "unknown";
return($ip);
}

[jazzard]

$_SERVER['HTTP_CLIENT_IP']和$_SERVER['ROMOTE_ADDR']有什么区别啊？？
$_SERVER['HTTP_X_FORWARDED_FOR']是什么意思啊？？
$_SERVER['HTTP_CLIENT_IP']和$_SERVER['HTTP_X_FORWARDED_FOR']我的书上都没有诶！
我看那个叫zhiin()　ｏｕｋ.ｃｎ　() 写的蛮简单的，问上面的几个程序到底哪个好啊？？