How is the post_id determined when adding a new post?

  • When a new (post|media|tag|whatever) is added, it’s given an ID. How is this ID determined? Is there a counter somewhere?

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  • It is the autoincrement ID field of your primary key in the MySQL database.

    You can determine the new post ID if you are programtically inserting a new post by this code:

    $post_id = wp_insert_post( $post, $wp_error );

    Hope this helps.

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