Simply because the whole site runs from a single index.php
with included files based on whichever section is defined in the url (id_sec)
includes are in a folder, in another folder
inc/php/myincludefilewithvalidation.php
action="../../index.php?id_sec=55"
section 55 is the shop > shipping details section
the code below is the include
can't see where else validation would be applied
this is where I would normally put it
can you tell me why it isnt working pls