echo '´';
just shows a question mark. I also tried with double quotes, but the same thing happens. I even tried adding a backslash in case it is an escaped character, but that just prints the backslash before the question mark.
I have <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" >
set, and going to Tools -> Page Info on Firefox shows UTF-8.
So why can't I echo an acute accent?