wp_count_terms() WP 1.0

Count how many terms are in Taxonomy.

Default $args is 'hide_empty' which can be 'hide_empty=true' or array('hide_empty' => true).

Works based on: get_terms()

✈ 1 time = 0.000664s = slow | 50000 times = 26s = slow

No Hooks.

Return

Array/Int/WP_Error. Number of terms in that taxonomy or WP_Error if the taxonomy does not exist.

Usage

wp_count_terms( $taxonomy, $args );

$taxonomy(string) (required): Taxonomy name.
$args(array/string): Array of arguments that get passed to get_terms().
Default: empty array

Changelog

Since 2.3.0

Introduced.

Code of wp count terms: `wp-includes/taxonomy.php` ^{WP 5.5}

<?php
function wp_count_terms( $taxonomy, $args = array() ) {
	$defaults = array(
		'taxonomy'   => $taxonomy,
		'hide_empty' => false,
	);
	$args     = wp_parse_args( $args, $defaults );

	// Backward compatibility.
	if ( isset( $args['ignore_empty'] ) ) {
		$args['hide_empty'] = $args['ignore_empty'];
		unset( $args['ignore_empty'] );
	}

	$args['fields'] = 'count';

	return get_terms( $args );
}