Walker::get_number_of_root_elements() WordPress Method
The Walker::get_number_of_root_elements() function returns the number of top-level elements in the tree.
Walker::get_number_of_root_elements( array $elements ) #
Calculates the total number of root elements.
Parameters
- $elements
(array)(Required)Elements to list.
Return
(int) Number of root elements.
More Information
Counts the number of top-level items (no children or descendants) in the provided array, and returns that count.
Source
File: wp-includes/class-wp-walker.php
public function get_number_of_root_elements( $elements ) {
$num = 0;
$parent_field = $this->db_fields['parent'];
foreach ( $elements as $e ) {
if ( empty( $e->$parent_field ) ) {
$num++;
}
}
return $num;
}
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Changelog
| Version | Description |
|---|---|
| 2.7.0 | Introduced. |