Charset error - php.ini is ok

I'm a beginner with CWP, migrating from cPanel. The language of my (at the moment, four) sites is Portuguese, so I need characters like ç, ã and É. None are being shown; even inside CSS files they are wrongly coded as ç (ç), ã(ã) and É (É). Same for emojis.

I've checked my php.ini and it's there:

default_charset = "UTF-8"
internal_encoding = "UTF-8"
input_encoding = "UTF-8"
output_encoding = "UTF-8"

So I have no idea what is the problem. Anyone?
Thank you.