get_the_category_by_ID( int $cat_id )

Retrieves category name based on category ID.

Parameters

$cat_id

(Required) Category ID.

Return

(string|WP_Error) Category name on success, WP_Error on failure.

Source

File: wp-includes/category-template.php 

function get_the_category_by_ID( $cat_ID ) {
	$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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Changelog

Changelog
Version Description
0.71 Introduced.