get a # from a url in php

Question

I'm trying to code with the facebook API

here it says : http://developers.facebook.com/docs/authentication/javascript to get the access_token thing, but it's after a # and not a ?

so how can I get it ?

possible duplicate of [Can PHP read the hash portion of the URL?](http://stackoverflow.com/questions/940905/can-php-read-the-hash-portion-of-the-url) — Andy E, Jul 20 '10 at 11:36
possible duplicate of [PHP & Hash / Fragment Portion of URL](http://stackoverflow.com/questions/1162008/php-hash-fragment-portion-of-url) — Gordon, Jul 20 '10 at 11:37

score 4 · Accepted Answer · answered Jul 20 '10 at 11:34

4

You won't be able to do it in PHP - you can only access it in javascript - the fragment/hash never reaches the server, it is processed by the browser

in Javascript, you can access the fragment using

window.location.hash

answered Jul 20 '10 at 11:34

Alex C

still can't understand how to use it – David 天宇 Wong Jul 20 '10 at 11:50
try using alert(window.location.hash); - it should show you the hash. You then need to store this in a cookie to be able to access it from PHP (you'll have to reload the page for it to become available in PHP). – Alex C Jul 20 '10 at 12:06
rather than storing it in a cookie, why not use Ajax to send it to the server? – TRiG Apr 26 '11 at 10:28

score 2 · Answer 2 · answered Jul 20 '10 at 11:35

The fragment identifier is only used client side. The browser doesn't send it to the server, so you can't access it with PHP.

To quote the page you link to:

Your JavaScript library can read the token from the URL and store it in a cookie for future use.

You have to use JS to read it before it can be sent to the server.

2 Answers2