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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.
This hook occurs 2 times in this file.
Line | Code |
---|---|
4623 | */ |
4624 | function get_ancestors( $object_id = 0, $object_type = '', $resource_type = '' ) { |
4625 | $object_id = (int) $object_id; |
4626 |
|
4627 | $ancestors = array(); |
4628 |
|
4629 | if ( empty( $object_id ) ) { |
4630 |
|
4631 | /** This filter is documented in wp-includes/taxonomy.php */ |
4632 | return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type ); |
4633 | } |
4634 |
|
4635 | if ( ! $resource_type ) { |
4636 | if ( is_taxonomy_hierarchical( $object_type ) ) { |
4637 | $resource_type = 'taxonomy'; |
4638 | } elseif ( post_type_exists( $object_type ) ) { |
4639 | $resource_type = 'post_type'; |
4640 | } |
4641 | } |
Line | Code |
4655 | * |
4656 | * @since 3.1.0 |
4657 | * @since 4.1.1 Introduced the `$resource_type` parameter. |
4658 | * |
4659 | * @param int[] $ancestors An array of IDs of object ancestors. |
4660 | * @param int $object_id Object ID. |
4661 | * @param string $object_type Type of object. |
4662 | * @param string $resource_type Type of resource $object_type is. |
4663 | */ |
4664 | return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type ); |
4665 | } |
4666 |
|
4667 | /** |
4668 | * Returns the term's parent's term_ID. |
4669 | * |
4670 | * @since 3.1.0 |
4671 | * |
4672 | * @param int $term_id Term ID. |
4673 | * @param string $taxonomy Taxonomy name. |