Do the following referral links work the same?

Say my site referral link is: domain.com/index.php?10

Are the following variations also functional?
1. domain.com/?10
2. domain.com?10

Thanks in advance.

 

1 should work yes, not sure about 2.

But if they don't work how you'd like them too, then it can be achieved using mod_rewrite.

 

All three examples put "10" into $_SERVER['QUERY_STRING']

If the referral information is obtained from the query string, all examples should work. If some other method, the variations might not work.

Will

 

2 should probably never work but browsers do it just to 'autocomplete'/'adapt' iirc

 

As Will suggested, you can experiment.

Add the following to index.php:

<?php
echo $_SERVER['QUERY_STRING']; 
?>

PHP:

It will proove if they work.