Sergey Biryukov 5ea8ba0bf0 Comments: Only type cast a scalar $comment_id in get_comment_author_link().
This aims to resolve a fatal error when the incoming `$comment_id` is an instance of `WP_Comment` (or any object) without a `comment_ID` property defined, or if it's empty:
{{{
Object of class WP_Comment could not be converted to string
}}}

This commit mirrors the changes previously made for a similar code fragment in `get_comment_author()`.

Includes:
* Unit tests to demonstrate the fatal error and validate the fix.
* Changing the default value for a non-existent comment ID in `get_comment_author()` from an empty string to zero as a numeric string, for consistency with `get_comment_ID()`.

Follow-up to [52818], [55289], [58335], [58755].

Props narenin, mukesh27, iflairwebtechnologies, umeshsinghin, SergeyBiryukov.
Fixes #61715.

git-svn-id: https://develop.svn.wordpress.org/trunk@58809 602fd350-edb4-49c9-b593-d223f7449a82
2024-07-25 22:36:13 +00:00
..