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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 |
---|---|
4780 | */ |
4781 | function get_ancestors( $object_id = 0, $object_type = '', $resource_type = '' ) { |
4782 | $object_id = (int) $object_id; |
4783 |
|
4784 | $ancestors = array(); |
4785 |
|
4786 | if ( empty( $object_id ) ) { |
4787 |
|
4788 | /** This filter is documented in wp-includes/taxonomy.php */ |
4789 | return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type ); |
4790 | } |
4791 |
|
4792 | if ( ! $resource_type ) { |
4793 | if ( is_taxonomy_hierarchical( $object_type ) ) { |
4794 | $resource_type = 'taxonomy'; |
4795 | } elseif ( post_type_exists( $object_type ) ) { |
4796 | $resource_type = 'post_type'; |
4797 | } |
4798 | } |
Line | Code |
4812 | * |
4813 | * @since 3.1.0 |
4814 | * @since 4.1.1 Introduced the `$resource_type` parameter. |
4815 | * |
4816 | * @param int[] $ancestors An array of IDs of object ancestors. |
4817 | * @param int $object_id Object ID. |
4818 | * @param string $object_type Type of object. |
4819 | * @param string $resource_type Type of resource $object_type is. |
4820 | */ |
4821 | return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type ); |
4822 | } |
4823 |
|
4824 | /** |
4825 | * Returns the term's parent's term_ID. |
4826 | * |
4827 | * @since 3.1.0 |
4828 | * |
4829 | * @param int $term_id Term ID. |
4830 | * @param string $taxonomy Taxonomy name. |