[HELP][UTF8] How to convert?

I want to convert
"…" => "..."
"é" => "é"

..........
and a lot of special characters.
str_replace doesn't work.

Please help me?

 

Use
<meta http-equiv="Content-type" content="text/html; charset=iso-8859-1" />

in place of

<meta http-equiv="content-type" content="text/html; charset=utf-8" />

 

I have solved the problem.
Thank you so much!