+ * $default_htmlspecialchars_encoding (string) is used to
+ * specify the charset that is used for htmlspecialchars()
+ * calls when an invalid charset was requested (PHP's
+ * htmlspecialchars() only supports a limited number of
+ * encodings). SquirrelMail defaults to iso-8859-1, but if
+ * you want to change the default to something like utf-8,
+ * you can use this setting for that.
+ *