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function is not described

wp_update_term_count() WP 2.3.0

Updates the amount of terms in taxonomy.

If there is a taxonomy callback applied, then it will be called for updating the count.

The default action is to count what the amount of terms have the relationship of term ID. Once that is done, then update the database.

  • Static. Array. $_deferred

No Hooks.

Return

true/false. If no terms will return false, and if successful will return true.

Usage

wp_update_term_count( $terms, $taxonomy, $do_deferred );
$terms(int/array) (required)
The term_taxonomy_id of the terms.
$taxonomy(string) (required)
The context of the term.
$do_deferred(true/false)
Whether to flush the deferred term counts too.
Default: false

Code of wp update term count: wp-includes/taxonomy.php VER 5.1.1

<?php
function wp_update_term_count( $terms, $taxonomy, $do_deferred = false ) {
	static $_deferred = array();

	if ( $do_deferred ) {
		foreach ( (array) array_keys( $_deferred ) as $tax ) {
			wp_update_term_count_now( $_deferred[ $tax ], $tax );
			unset( $_deferred[ $tax ] );
		}
	}

	if ( empty( $terms ) ) {
		return false;
	}

	if ( ! is_array( $terms ) ) {
		$terms = array( $terms );
	}

	if ( wp_defer_term_counting() ) {
		if ( ! isset( $_deferred[ $taxonomy ] ) ) {
			$_deferred[ $taxonomy ] = array();
		}
		$_deferred[ $taxonomy ] = array_unique( array_merge( $_deferred[ $taxonomy ], $terms ) );
		return true;
	}

	return wp_update_term_count_now( $terms, $taxonomy );
}