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Description

This Conditional Tag checks if a Category archive page is being displayed. This is a boolean function, meaning it returns either TRUE or FALSE.

To test if a post is in a category use in_category().

Usage

<?php is_category( $category ); ?>

Parameters

$category

(mixed) (optional) Category ID, Category Title, Category Slug or Array of IDs, names, and slugs.

Default: None

Return Values

(boolean) 

True on success, false on failure.

Examples

is_category();
// When any Category archive page is being displayed.

is_category( '9' );
// When the archive page for Category 9 is being displayed.

is_category( 'Stinky Cheeses' );
// When the archive page for the Category with Name "Stinky Cheeses" is being displayed.

is_category( 'blue-cheese' );
// When the archive page for the Category with Category Slug "blue-cheese" is being displayed.

is_category( array( 9, 'blue-cheese', 'Stinky Cheeses' ) );
// Returns true when the category of posts being displayed is either term_ID 9, or slug "blue-cheese", or name "Stinky Cheeses". Note: the array ability was added at Version 2.5.

Notes

• See also is_archive() and Category Templates.
• For Custom Taxonomies use is_tax()

Change Log

• Since: 1.5.0

Source File

is_category() is located in wp-includes/query.php.

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