public static Html::decodeEntities($text)
Decodes all HTML entities including numerical ones to regular UTF-8 bytes.
Double-escaped entities will only be decoded once ("&lt;" becomes "<", not "<"). Be careful when using this function, as it will revert previous sanitization efforts (<script> will become <script>).
This method is not the opposite of Html::escape(). For example, this method will convert "é" to "é", whereas Html::escape() will not c