get_all_page_ids()

Get a list of page IDs.

Return

(array) List of page IDs.

Source

File: wp-includes/post.php 

function get_all_page_ids() {
	global $wpdb;

	$page_ids = wp_cache_get('all_page_ids', 'posts');
	if ( ! is_array( $page_ids ) ) {
		$page_ids = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE post_type = 'page'");
		wp_cache_add('all_page_ids', $page_ids, 'posts');
	}

	return $page_ids;
}

Expand Source Code View on GitHub

Related

Uses

Uses
Uses Description
wp-includes/wp-db.php: wpdb::get_col()

Retrieve one column from the database.
wp-includes/cache.php: wp_cache_get()

Retrieves the cache contents from the cache by key and group.
wp-includes/cache.php: wp_cache_add()

Adds data to the cache, if the cache key doesn’t already exist.

Changelog

Changelog
Version Description
WP-2.0.0 Introduced.