Wordpress/tests
Sergey Biryukov 34730d2ea0 Post Thumbnails: Change the return value of get_post_thumbnail_id() for a non-existing post to false instead of an empty string.
This further makes the function more consistent with `get_the_ID()` or `wp_get_post_parent_id()`, both returning `false` for a non-existing post.

Additionally, document that `get_post_thumbnail_id()` returns `0` if the thumbnail image is not set.

Follow-up to [47160].

Props theMikeD, dingo_d, netpassprodsr, SergeyBiryukov.
Fixes #49832. See #40096.

git-svn-id: https://develop.svn.wordpress.org/trunk@48310 602fd350-edb4-49c9-b593-d223f7449a82
2020-07-05 10:15:40 +00:00
..
e2e Editor: update JavaScript packages 2020-06-26 13:31:11 +00:00
phpunit Post Thumbnails: Change the return value of get_post_thumbnail_id() for a non-existing post to false instead of an empty string. 2020-07-05 10:15:40 +00:00
qunit REST API: Introduce endpoint for editing images. 2020-07-04 04:13:17 +00:00