get_the_category_by_ID() – Function | Developer.WordPress.org

get_the_category_by_ID( int $cat_id ): string|WP_Error

Retrieves category name based on category ID.

Parameters

$cat_idintrequired: Category ID.

Return

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

Source

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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Uses	Description
get_term()`wp-includes/taxonomy.php`	Gets all term data from database by term ID.
is_wp_error()`wp-includes/load.php`	Checks whether the given variable is a WordPress Error.

Used by	Description
the_category_head()`wp-includes/deprecated.php`	Prints a category with optional text before and after.

Changelog

Version	Description
0.71	Introduced.

User Contributed Notes

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Monzur Alam 4 years ago

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Basic Example
```
<?php echo get_the_category_by_ID( 'category_id_here' ); ?>
```
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