$_SERVER['REMOTE_ADDR'],还有找个ip地址的数据库配合得到用户所在地区 :)
但有时候直接用会有问题,写了个函数,得到用户真实IP,做参考:
<? function iptype1 () { if (getenv("HTTP_CLIENT_IP")) { return getenv("HTTP_CLIENT_IP"); } else { return "none"; } } function iptype2 () { if (getenv("HTTP_X_FORWARDED_FOR")) { return getenv("HTTP_X_FORWARDED_FOR"); } else { return "none"; } } function iptype3 () { if (getenv("REMOTE_ADDR")) { return getenv("REMOTE_ADDR"); } else { return "none"; } } function ip() { $ip1 = iptype1(); $ip2 = iptype2(); $ip3 = iptype3(); if (isset($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"; } } Echo ip(); ?>
但有时候直接用会有问题,写了个函数,得到用户真实IP,做参考:
<? function iptype1 () { if (getenv("HTTP_CLIENT_IP")) { return getenv("HTTP_CLIENT_IP"); } else { return "none"; } } function iptype2 () { if (getenv("HTTP_X_FORWARDED_FOR")) { return getenv("HTTP_X_FORWARDED_FOR"); } else { return "none"; } } function iptype3 () { if (getenv("REMOTE_ADDR")) { return getenv("REMOTE_ADDR"); } else { return "none"; } } function ip() { $ip1 = iptype1(); $ip2 = iptype2(); $ip3 = iptype3(); if (isset($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"; } } Echo ip(); ?>
看下面的:/*
函数名称:get_client_ip()
函数作用:获取客户端访问的IP
参 数:无参数
返 回 值:返回获取到的客户端IP
*/
function get_client_ip()
{
if(getenv('HTTP_CLIENT_IP')) {
$client_ip = getenv('HTTP_CLIENT_IP');
} elseif(getenv('HTTP_X_FORWARDED_FOR')) {
$client_ip = getenv('HTTP_X_FORWARDED_FOR');
} elseif(getenv('REMOTE_ADDR')) {
$client_ip = getenv('REMOTE_ADDR');
} else {
$client_ip = $HTTP_SERVER_VARS['REMOTE_ADDR'];
}
return $client_ip;
}// 打印客户端IP
print get_client_ip();