PHP GET variable `/` instead of `?` - php

Question

I'm working with a script that doesn't allow $_GET[] variables in the URL (it's a referrer url I'm giving out and I need to have some way to track it). I can't have this for example domain.com/index.php?id=test. However i can do this domain.com/index.php/idd=test
My question is if i use / instead of ? and treat it like a get variable. How do i get the variable from the url. What's an easy way to do this

Answer 1

If you have a URL like this:
http://example.com/index.php/whatever
Then the /whatever is commonly known as PATH_INFO and available as:
print $_SERVER["PATH_INFO"]
Note that some environments (CGI) can have it set to placeholder values (request_uri) when an actual path_info wasn't present. (See also PHP manual on the environment variables http://php.net/manual/en/reserved.variables.server.php and the notes about PATH_INFO and PATH_TRANSLATED.)
.htaccess: php_value arg_separator.input &;/
# Else strtr(..., "/", "&")
parse_str($_SERVER["PATH_INFO"], $_GET);
Should populate $_GET.

Answer 2

There's no "easy" way to replace the entire functionality of $_GET parameters, but there are some awkward hacks, at least under Apache. Given that you cannot use $_GET parameters, I'll assume you don't have access to mod_rewrite either, but who knows.
A request like http://www.example.com/index.php/foo/bar/baz
will generate the following items in the $_SERVER superglobal:
[REQUEST_URI] => /index.php/foo/bar/baz
[SCRIPT_NAME] => /index.php
[PATH_INFO] => /foo/bar/baz
In theory, you can then parse $_SERVER['PATH_INFO'] by splitting on "/", looping through that array and splitting on "=" (assuming you're still going to use a key=value structure).
Be aware, however, that a side effect of the wonky URL structure is that relative links in your document will become relative to the wonky URL, so an image like
<img src="images/myimage.jpg">
will attempt to load http://www.example.com/index.php/foo/bar/images/myimage.jpg
This can be avoided by using absolute URLs (http://www.example.com/images/myimage.jpg) or root-relative URLs (/images/myimage.jpg).
But basically, you're asking for a world of trouble...and troubleshooting.

Answer 3

$segments = explode("/", $_SERVER['REQUEST_URI']);
then you decide from there. each one of the results from $segments can be manipulated the same way. You can choose to do id=test or just the id and always know that $segments[2] is id, for example. Your call.
You should definitely look into mod_rewrite though. you need to redirect calls to a file cause this method will not allow anything past .php if you are not allowed get vars. (assuming through some config ? and beyond is not read)
basically reroute everything to index.php if that's your one controller.

Answer 4

You could parse it like this:
$uriParts = array_reverse((array) explode('/', $_SERVER['REQUEST_URI']));
$GET = explode('=', $uriParts[0]); // however you wanted to parse it form here
Do with it as you wish, just know that $uriParts[0] would contain id=whatever.

Answer 5

What you have to do is parse $_SERVER['REQUEST_URI'] and then do what you need to it.
from your example you need something like this:
//get rid of "/index.php
$uri = substr($_SERVER['REQUEST_URI'], 11);
//explode incase there are other parameters
$arr = explode('&', $uri);
$token = array();
foreach($token as $t){
$part = explode('=', $t);
$token[$part[0]] = $part[1]
}