[ragtek]

include("/home/user/public_html/codesort/codes-config.php");
include("/home/user/public_html/codesort/show-codes.php");

must work in "your" script

but i don't realy understand what's the problem

first i think you wanted to include it in a vbscript
but i had seen https://vborg.vbsupport.ru/showthread.php?t=98009 and that means that you made the script yourself
so the include shout not be a problem and work

what is
include("/home/user/public_html/codesort/codes-config.php");
include("/home/user/public_html/codesort/show-codes.php");

including?

try $out=....... (the code that show-codes includes
and put $out in the template