I just downloaded Atom text editor to try it out. I edited some .php pages with it, but atom replaces some symbols (like ï or ë) with ‘�’. Which is, obviously, rather annoying because now I have some � on my webpages instead of the correct symbols.
When I edit the same .php pages with sublime text editor, It displays the correct symbols/words.
So I’m guessing this is some kind of option or setting in Atom that I need to adjust.