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When I delete a bunch of posts their custom fields remain in the database, is there a way to remove them as well on deletion?

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The best way to do this is to use the wp_delete_post function as follows:

wp_delete_post($post_id, true); //false (default) sends it to the trash

This function accounts for comments, term_relationships, posts.post_parent, and postmeta.

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  • Thanks, why doesn't WordPress do that by default when I delete posts from the dashboard?
    – urok93
    Commented Aug 24, 2012 at 8:03

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