public static function getTextList() {
        if (self::$_text) {
            return self::$_text;
        }

        self::$_text = self::_getList('text');

        return self::$_text;
    }
public static function getTextList() {
        if (self::$_text) {
            return self::$_text;
        }

        self::$_text = self::_getList('text');

        return self::$_text;
    }
public static function getTextList ( ) { if ( self :: $ _text ) { return self :: $ _text ; } self :: $ _text = self :: _getList ( 'text' ) ; return self :: $ _text ; }
Return a list of all text mime types.

@return array
Return a list of all text mime types .