get_the_category_by_ID() │ WP 0.71

Retrieve category name based on category ID.

Uses: get_term()

No Hooks.

Return

String|WP_Error. Category name on success, WP_Error on failure.

Usage

get_the_category_by_ID( $cat_ID ) // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid;
$cat_ID(int) (required)
Category ID.

Changelog

Since 0.71 Introduced.

Code of get_the_category_by_ID() WP 5.9.3

wp-includes/category-template.php 
function get_the_category_by_ID( $cat_ID ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
	$cat_ID   = (int) $cat_ID;
	$category = get_term( $cat_ID );

	if ( is_wp_error( $category ) ) {
		return $category;
	}

	return ( $category ) ? $category->name : '';
}

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