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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
1533 | * The dynamic portion of the hook name, $adjacent, refers to the type |
1534 | * of adjacency, 'next' or 'previous'. |
1535 | * |
1536 | * @since 2.5.0 |
1537 | * |
1538 | * @param string $where The WHERE clause in the SQL. |
1539 | * @param bool $in_same_term Whether post should be in a same taxonomy term. |
1540 | * @param array $excluded_terms Array of excluded term IDs. |
1541 | */ |
1542 | $where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare( "WHERE p.post_date $op %s AND p.post_type = %s AND p.post_status = 'publish' $posts_in_ex_terms_sql", $current_post_date, $post->post_type), $in_same_term, $excluded_terms ); |
1543 |
|
1544 | /** |
1545 | * Filter the ORDER BY clause in the SQL for an adjacent post query. |
1546 | * |
1547 | * The dynamic portion of the hook name, $adjacent, refers to the type |
1548 | * of adjacency, 'next' or 'previous'. |
1549 | * |
1550 | * @since 2.5.0 |
1551 | * |