PHP Detect if any URL variables have been set

Question

Hey guys, it's kind of hard to explain but basically I want to detect if any variables have been set through the URL. So with my IF statement all of the following should return true:

• http://domain.com/index.php?m=100
• http://domain.com/index.php?q=harhar
• http://domain.com/index.php?variable=poo&crazy=yes

and all the following return false:

• http://domain.com/index.php
• http://domain.com/test.php
• http://domain.com/no_variables.php

Any ideas?

Answer 1

isset($_GET['m'])

or if anything, I believe count($_GET) might work.

Answer 2

If you mean taking a string and checking if it has a query string, you can use parse_url.

If you mean checking if the current request has a query string, you can just check the length of $_SERVER['QUERY_STRING'].

If you mean to get a count of the number of variables parsed from the query string, you can do count($_GET);

Answer 3

if( !empty( $_GET ) ) {
   //GET variables have been set
}

Answer 4

I would test for QUERY_STRING:

if (!empty($_SERVER["QUERY_STRING"]))

should in effect be no different from checking $_GET, though - either way is fine.

Answer 5

(count($_GET) > 0)