Special Spanish Characters not displaying, Codeigniter MySQL [duplicate]

I'm not exactly sure why, but I had this on html views and it wasn't working.

header('Content-Type: text/html; charset=utf-8');

By reading this post, I found an alternative answer:

So I had to change the header of html files. I put this line:

header('Content-Type: text/html; charset=ISO-8859-1');

and it works perfect now.

CodeHunter