• If your application transmits text to other systems, they will also need to be informed of the character encoding. In PHP, you can use the [default_charset](<http://www.php.net/manual/en/ini.core.php#ini.default-charset>) option in php.ini, or manually issue the Content-Type MIME header yourself. This is the preferred method when targeting modern browsers.

header('Content-Type: text/html; charset=utf-8');

• If you are unable to set the response headers, then you can also set the encoding in an HTML document with HTML metadata.

- HTML5

      <meta charset="utf-8">

- Older versions of HTML

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