描述:
获取所有页面的id
用法:
<?php get_all_page_ids() ?>
参数:
None
源文件:
/**
* Get a list of page IDs.
*
* @since 2.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @return array List of page IDs.
*/
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;
}