Warning: This function has been deprecated. Use get_terms() instead.


Retrieves all category IDs.

Description Description

See also See also

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Return Return

(object) List of all of the category IDs.

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Source Source

File: wp-includes/deprecated.php

function get_all_category_ids() {
	_deprecated_function( __FUNCTION__, '4.0.0', 'get_terms()' );

	if ( ! $cat_ids = wp_cache_get( 'all_category_ids', 'category' ) ) {
		$cat_ids = get_terms( 'category', array('fields' => 'ids', 'get' => 'all') );
		wp_cache_add( 'all_category_ids', $cat_ids, 'category' );

	return $cat_ids;

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Changelog Changelog

Version Description
4.0.0 Use get_terms()
2.0.0 Introduced.

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