How do you detect the country people are visiting from?

RonB

I've seen numerous stat websites that can show this. How can I also detect screen resolution and if they have javascript enabled using just PHP?

Thank you

teguh123

I've been trying to know this as well

One sloppy solution is look at hostname and see if it's ended in .id, .com, etc.

mpb001

http://www.maxmind.com/app/linux

The GeoIP database PhpAds can use.

teguh123

teguh123 wrote:
I've been trying to know this as well

One sloppy solution is look at hostname and see if it's ended in .id, .com, etc.

Can anyone please comment about the accuracy of my method?

I don't need perfect editing. It's just that I need to more accurately redirect traffics to different sites.

ManWithNoName

"One sloppy solution is look at hostname and see if it's ended in .id, .com, etc."
I don't even see how that would work...

One way is using the language stuff built in web browsers. I do not remember the details but I think it goes something like this: you user agent sends a language coding with the header when it request a web page (in my case "en-GB"), the server (Apache) could then do stuff with that, I would guess PHP could do stuff with that too... http://se2.php.net/manual/en/function.http-negotiate-language.php Yes...

roscor

Try looking a this thread REMOTE_ADDRESS

I am a member of statcounter who can give you IP address, country, I think achieved by using $_SERVER['REMOTE_ADDESS']; etc.

MarkR

There are two things you can tell easily:

You can locate their IP address by country using an IP/country database. This is simple but not entirely reliable (it's a good start)
If you just want to know their preferred language, you can look at their Accept-Language: header - this is presumably defined in some RFC somewhere.

Neither of these things should be relied on in any way.

Some users have an incorrect language setting and don't know how to change it. Some companies assign IP addresses from one country to employees/users/customers in another.

Mark

MarkR

Oh, on a second note:

You can detect if they're using Javascript when they submit a form, by having some Javascript in the page add values to some hidden elements.

You can't detect their screen size without using client-side Javascript - a script used on form submit could also send that information.

It would be feasible to know this info without a form submit (e.g. use some kind of AJAX type thing in the page, or stick query strings on the end of links, set cookies etc etc), but that's the easiest way if you can live with it.

Mark

inotgood

to detect resolution, it must be done in javascript,

you can detect that they have or not javascript with <noscript>some codes here to redirect</noscript>

i actually have a ip database of ip i think, maybe not,

should search for more about what country have which ip ranges

teguh123

ManWithNoName wrote:
"One sloppy solution is look at hostname and see if it's ended in .id, .com, etc."
I don't even see how that would work...

One way is using the language stuff built in web browsers. I do not remember the details but I think it goes something like this: you user agent sends a language coding with the header when it request a web page (in my case "en-GB"), the server (Apache) could then do stuff with that, I would guess PHP could do stuff with that too... http://se2.php.net/manual/en/function.http-negotiate-language.php Yes...

Well, people that come from Indonesia, for example, have things like centrin.net.id in their hostname.

Currently, IP chicken says that my name address is:
150.subnet125-160-201.speedy.telkom.net.id

See, there is always a .id somewhere when the ISP is from Indonesia. Does this work all over the world?

What about if we curl reverse dns look up and check the IP>?

That sort of thing

ManWithNoName

".id somewhere when the ISP is from Indonesia"
Well, I see what you mean.

"What about if we curl reverse dns look up and check the IP>?"
??? You lost me at "curl reverse" and frankly scared me at "IP>?"

teguh123

I mean I think there is a homepage

http://www.dnsstuff.com/

Just curl that homepage to "ask" what's their IP. And then tada... We got what countries it come from.

teguh123

I saw this:
http://www.dnsstuff.com/tools/whois.ch?ip=221.132.241.110

Wow, can anyone tell me where does sites like dnsstuff.com got their information from? I seriously doubt they have their own database. There must be some official website like Arin that we can automatically query to get list.

Am I correct?