I have a doubt. I have to pass information through the url, but I don't want it to be seen, so I'm looking at how to make a link (eg "client/todosillas/sillon-silla_braun-34763.php") hide (eg "Y2xpZW50ZS90b2Rvc2lsbGFzL3NpbGxvbi1zaWxsYV9icmF1bi0zNDc2My5waHA= " ), because I don't want it to show. I know there are other ways to send information, but I have to do it this way, since I was asked :(.
Thank you and please excuse me if I am not clear.
With that in mind, you should create a .htaccess and configure it something like this:
This code will do that when they enter yourdomain.com/client/Y2xpZW50ZS90b2Rvc2lsbGFzL3NpbGxvbi1zaWxsYV9icmF1bi0zNDc2My5waHA=
Send the information to a php file that in this case is called receiver.php , then with that file you query the database in a table if the variable that comes through GET['id'] exists and if you find a result, do the logic you want.
You can use Hash to create that type of encrypted string: https://www.php.net/manual/es/function.hash.php
It is a way to do it, there are several ways, I hope it helps you.