UTF-8 not working in HTML forms

In your HTML, add this meta tag:

 <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">

Also add this PHP header at top of the script:

 header("Content-Type: text/html;charset=UTF-8");

[EDIT]:

One more tip is to save the file as UTF-8 without BOM encoding. You can use Notepad++ or any decent editor to do that.

Had the exactly same problem as mentioned above, tried everything mentioned. Try deleting enctype="multipart/form-data" and adding accept-charset="utf-8" from the tag. This was the solution in my case.