获取IP位置和操作系统

Question

I was wondering how to get the ip location and also what OS the visitor is running. Say for instance, I use a Mac so if I would visit this website it would say Mac OS.

So basically something like ipchicken.com has.

Answer 1

To get the client's ip, use the global $_SERVER array:

$ip = $_SERVER['REMOTE_ADDR'];

To resolve the ip to a hostname you can use gethostbyaddr():

$hostname = gethostbyaddr($_SERVER['REMOTE_ADDR']);

---

For the user agent header, which will contain information about the OS and the browser which the client is using, the preferred way is to use the function get_browser():

$clientInfo = get_browser(null, true);
var_dump($clientInfo);

... what will give you an array like:

Array
(
    [browser_name_regex] => ^mozilla/5\.0 (windows; .; windows nt 5\.1; .*rv:.*) gecko/.* firefox/0\.9.*$
    [browser_name_pattern] => Mozilla/5.0 (Windows; ?; Windows NT 5.1; *rv:*) Gecko/* Firefox/0.9*
    [parent] => Firefox 0.9
    [platform] => WinXP
    [browser] => Firefox
    [version] => 0.9
    [majorver] => 0
    [minorver] => 9
    [cssversion] => 2
    [frames] => 1
    [iframes] => 1
    [tables] => 1
    [cookies] => 1
    [backgroundsounds] =>
    [vbscript] =>
    [javascript] => 1
    [javaapplets] => 1
    [activexcontrols] =>
    [cdf] =>
    [aol] =>
    [beta] => 1
    [win16] =>
    [crawler] =>
    [stripper] =>
    [wap] =>
    [netclr] =>
)