Update post terms

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The function wp_set_post_terms() works fantastically however I’m looking to add some terms to a post at a later date. I’ve tried using wp_set_post_terms() and wp_set_object_terms() but they just overwrite what’s already there. I thought wp_add_object_terms() was the answer to my question but it has the same functionality whereby overwriting the original terms.

Any way to append terms via code?

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2 comments

  1. However, wp_set_object_terms(); seems made for your case:

    From WordPress Codex:

    Relates an object (post, link etc) to a term and taxonomy type (tag,
    category, etc). Creates the term and taxonomy relationship if it
    doesn’t already exist.

    <?php wp_set_object_terms( $object_id, $terms, $taxonomy, $append ); ?>

    The clue

    $append parameter is bool: if true, tags will be appended to the object. If false, tags will replace existing tags

    Hope it helps!