get_{$adjacent}_post_join – Hook | Developer.WordPress.org

apply_filters( “get_{$adjacent}_post_join”, string $join, bool $in_same_term, int[]|string $excluded_terms, string $taxonomy, WP_Post $post )

Filters the JOIN clause in the SQL for an adjacent post query.

Description

The dynamic portion of the hook name, $adjacent, refers to the type of adjacency, ‘next’ or ‘previous’.

Possible hook names include:

$joinstring: The JOIN clause in the SQL.
$in_same_termbool: Whether post should be in the same taxonomy term.
$excluded_termsint[]|string: Array of excluded term IDs. Empty string if none were provided.
$taxonomystring: Taxonomy. Used to identify the term used when $in_same_term is true.
$postWP_Post: WP_Post object.

$join = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_term, $excluded_terms, $taxonomy, $post );

Used by	Description
get_adjacent_post()`wp-includes/link-template.php`	Retrieves the adjacent post.

Version	Description
4.4.0	Added the `$taxonomy` and `$post` parameters.
2.5.0	Introduced.

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