public static function getImageList() {
        if (self::$_image) {
            return self::$_image;
        }

        self::$_image = self::_getList('image');

        return self::$_image;
    }
public static function getImageList() {
        if (self::$_image) {
            return self::$_image;
        }

        self::$_image = self::_getList('image');

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

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