Wordpress rewrite post gallery image url

Question

By default, I have an attachment page URL:

http://example.lt/photo/juokingi-pokalbiai-22-nuotraukos/attachment/221/

I want have:

http://example.lt/photo/juokingi-pokalbiai-22-nuotraukos/gallery/221/

or:

http://example.lt/photo/juokingi-pokalbiai-22-nuotraukos/221/

or:

http://example.lt/photo/juokingi-pokalbiai-22-nuotraukos/img_name

Is it possible to rewrite the attached images URL?

In permalinks settings, I cant set additional URL only for tags and category, how about attachments?

Answer 1

Add this to your .htaccess in your web root / directory

RewriteEngine on
RewriteBase /

# for /photo/juokingi-pokalbiai-22-nuotraukos/gallery/221/
RewriteRule ^(.*)/gallery/(\d+)/?$ $1/attachment/$2 [NC,L]

# if "photo/juokingi-pokalbiai-22-nuotraukos" path is static followed by id
RewriteRule ^(photo/juokingi-pokalbiai-22-nuotraukos)/(\d+)/?$ $1/attachment/$2 [NC,L]

Unless, the image name also contains the attachment id; handling a URL like /photo/juokingi-pokalbiai-22-nuotraukos/img_name would not be possible.