getting to a view directory

I have come to the conclusion (although I hope you guys can tell me how to fix it) when my form posts to
     <form name ="userinput" action="save_userinput" method="post">
The browser is trying to run a file called view/Users/save_userinput.php rather than the save_userinput method in the Users class. How can I get it to run the method instead of running the php file?

BTW, I also tried <form name ="userinput" action="account.php" method="post">

But that causes:


https://www.rdsubstantiation.com/sub_cru...ccount.php

in the browser and that also gives a 404 error. Why a 404 error?

proof that an old dog can learn new tricks