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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 |
---|---|
4344 | */ |
4345 | function get_ancestors( $object_id = 0, $object_type = '', $resource_type = '' ) { |
4346 | $object_id = (int) $object_id; |
4347 |
|
4348 | $ancestors = array(); |
4349 |
|
4350 | if ( empty( $object_id ) ) { |
4351 |
|
4352 | /** This filter is documented in wp-includes/taxonomy.php */ |
4353 | return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type ); |
4354 | } |
4355 |
|
4356 | if ( ! $resource_type ) { |
4357 | if ( is_taxonomy_hierarchical( $object_type ) ) { |
4358 | $resource_type = 'taxonomy'; |
4359 | } elseif ( post_type_exists( $object_type ) ) { |
4360 | $resource_type = 'post_type'; |
4361 | } |
4362 | } |
Line | Code |
4376 | * |
4377 | * @since 3.1.0 |
4378 | * @since 4.1.1 Introduced the `$resource_type` parameter. |
4379 | * |
4380 | * @param array $ancestors An array of object ancestors. |
4381 | * @param int $object_id Object ID. |
4382 | * @param string $object_type Type of object. |
4383 | * @param string $resource_type Type of resource $object_type is. |
4384 | */ |
4385 | return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type ); |
4386 | } |
4387 |
|
4388 | /** |
4389 | * Returns the term's parent's term_ID. |
4390 | * |
4391 | * @since 3.1.0 |
4392 | * |
4393 | * @param int $term_id Term ID. |
4394 | * @param string $taxonomy Taxonomy name. |