Sometimes users from other regions than English-speaking have problems with encoding while for example programming a php project. It can be, that the server has another encoding then UTF-8, and if someone want to create a php project in UTF-8 on this server, his text might be shown incorrect.
Example: it can be that on your server default encoding is Windows-1251 - then you should delete the
AddDefaultCharset windows-1251 from the .htaccess server file and write
To check, which encoding does your server have, don't set the
<META charset> tag and activate
"automatic encoding detection" in your browser.