Walker::get_number_of_root_elements( array $elements ): int

Calculates the total number of root elements.


Parameters

$elements array Required
Elements to list.

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Return

int Number of root elements.


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More Information

Counts the number of top-level items (no children or descendants) in the provided array, and returns that count.


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Source

File: wp-includes/class-wp-walker.php. View all references

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

Changelog
Version Description
2.7.0 Introduced.

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