i need to know the 2 kind of forms , which one is More functional ?

use form_open function mainly for the reason that has CSRF protection if you ever will need it.


https://www.codeigniter.com/user_guide/l...t=csrf#id2

if in future you will need to enable CSRF protection you won't have to change all hard coded <form> tags to form_open().

for the input/select fields I just hard code them.