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php - Get meta values from parent post and save in child post

matteradmin2025-06-28 05:28:4510PV0评论

I have a custom post type "E-Books" with two categories "E-Book Title" and "Chapter Page", and custom meta boxes (table of contents, etc).

The E-Book post type uses one page template, and displays content based on category conditional.

<?php if (in_category('e-book-title')) { content } ?>

The "E-Book Title" posts are the parents and all meta info will be stored on these posts.

The "Chapter Page" posts are children of their respective "E-Book Title", and I would like each chapter page to grab the meta values of their parent.

For example, the table of contents meta will be stored for the title page "Book One", and when a new chapter post "Chapter One" is created with the assigned parent "Book One", the meta values from "Book One" will be stored for the new chapter post.

Is there a way to do this? I could manually enter the meta values in the chapter posts, but would be much user friendly if the chapter posts inherited their parents meta automatically.

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