You seem to be trying to append a session token to the URL — or a once-only deal — correct me if I'm wrong there, without the URL appearing dynamic.
A dynamic URL is simply variables passed in the URL, meaning you can't avoid something like
domain.com/file.php?variable=value. However, you can 'mask' these URLs with htaccess, which works by allowing access to that path via another. For the example I just used, I could change it to be accessed as
domain.com/file/value. This is a good technique for set pages, such as a user page, however I don't believe there is an efficient way to mask a random value you are passing to every page. You would need to create a new htaccess mask for every page on your site, and if you miss one.. it would be messy.
More importantly, this is an absurd approach to preventing SQL injection — or any form of attack — and is a waste of time. Knowing the name of variables, such as this page using the "t" variable, is of no benefit to an attacker if a few simple sanitations are in effect. Sanitation > security by obscurity.