retrieve the hash in the url with php?

Question

someone here in SO told me that the hash (#) in the url could be retrieved by php function parse_url? is this true?

my web site got a lot of ajax effects and i want

Answer 1

The hash in the URL doesn't even get to the server. There is no way you can access it from any programming language on the server side.

Answer 2

Example from php manual:

<?php
$url = 'http://username:password@hostname/path?arg=value#anchor';

print_r(parse_url($url));

echo parse_url($url, PHP_URL_PATH);
?> 

Answer 3

parse_url() can get the hash from a url string. Note the signature:

mixed parse_url ( string $url [, int $component = -1 ] )

You must already know the string. For instance, from the docs:

<?php

  $url = 'http://username:password@hostname/path?arg=value#anchor';
  print_r(parse_url($url));
  echo parse_url($url, PHP_URL_PATH);

?>

Outputs

Array
(
    [scheme] => http
    [host] => hostname
    [user] => username
    [pass] => password
    [path] => /path
    [query] => arg=value
    [fragment] => anchor
)
/path

Note the entry under key "fragment".

Answer 4

Once you get #value using javascript, send it back to server using ajax or .... url : http://example.in/?paramvalue=PKDVS4G#access_token=463d3d40-bdbb-04f3-ddb2-c35e2bd9ffa8

<script>     
alert(window.location.hash);
var myhashvalue = window.location.hash;
//hash value like :  #access_token=463d3d40-bdbb-04f3-ddb2-c35e2bd9ffa8
//ajax call to send myhashvalue to server
</script>   

Answer 5

someone here in SO told me that the hash (#) in the url could be retrieved by php function parse_url? is this true?

Yes:

parse_url('http://stackoverflow.com/questions/1957030/retrieve-the-hash-in-the-url-with-php/1957040#1957040', PHP_URL_FRAGMENT); // 1957040

But you can't determine the hash on the server side without knowing the full URL à priori, not sure if the HTTP_REFERER holds this hash (think not).