[wp-trac] [WordPress Trac] #45658: get_post_thumbnail_id

[WordPress Trac]

#45658: get_post_thumbnail_id
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 Reporter:  Tkama            |      Owner:  (none)
     Type:  feature request  |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  General          |    Version:  5.0.1
 Severity:  normal           |   Keywords:
  Focuses:                   |
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 I have some questions for function [https://wp-kama.ru/filecode/wp-
 includes/post-thumbnail-template.php#L38-44 get_post_thumbnail_id()]:

 - why does it return a string instead of an integer?
 - why `@return string|int` in docs? It can't return an integer.

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Ticket URL: <https://core.trac.wordpress.org/ticket/45658>
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