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Check if a term is an ancestor of another term.
Syntax Syntax
Description Description
You can use either an id or the term object for both parameters.
Parameters Parameters
- $term1
-
(Required) ID or object to check if this is the parent term.
- $term2
-
(Required) The child term.
- $taxonomy
-
(Required) Taxonomy name that $term1 and
$term2belong to.
Return Return
(bool) Whether $term2 is a child of $term1.
Source Source
File: wp-includes/taxonomy.php
$where = 't.slug = %s';
$else_where = 't.name = %s';
$where_fields = array( $slug );
$else_where_fields = array( $term );
$orderby = 'ORDER BY t.term_id ASC';
$limit = 'LIMIT 1';
if ( ! empty( $taxonomy ) ) {
if ( is_numeric( $parent ) ) {
$parent = (int) $parent;
$where_fields[] = $parent;
$else_where_fields[] = $parent;
$where .= ' AND tt.parent = %d';
$else_where .= ' AND tt.parent = %d';
}
$where_fields[] = $taxonomy;
$else_where_fields[] = $taxonomy;
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Changelog Changelog
| Version | Description |
|---|---|
| 3.4.0 | Introduced. |