wp_count_terms( array|string $args = array(), array|string $deprecated = '' ): string|WP_Error

1963function wp_count_terms( $args = array(), $deprecated = '' ) {1964	$use_legacy_args = false;1965 1966	// Check whether function is used with legacy signature: `$taxonomy` and `$args`.1967	if ( $args1968		&& ( is_string( $args ) && taxonomy_exists( $args )1969			|| is_array( $args ) && wp_is_numeric_array( $args ) )1970	) {1971		$use_legacy_args = true;1972	}1973 1974	$defaults = array( 'hide_empty' => false );1975 1976	if ( $use_legacy_args ) {1977		$defaults['taxonomy'] = $args;1978		$args                 = $deprecated;1979	}1980 1981	$args = wp_parse_args( $args, $defaults );1982 1983	// Backward compatibility.1984	if ( isset( $args['ignore_empty'] ) ) {1985		$args['hide_empty'] = $args['ignore_empty'];1986		unset( $args['ignore_empty'] );1987	}1988 1989	$args['fields'] = 'count';1990 1991	return get_terms( $args );1992}