This article explains how to use WordPress's WP_List_Table
class to create custom admin tables. It's a powerful tool for building consistent, user-friendly interfaces within the WordPress dashboard.
Key Concepts:
-
WP_List_Table
: A core WordPress class providing a standardized structure for displaying data tables in the admin area. It handles pagination, sorting, and bulk actions automatically. -
Extending the Class: Create a new class that inherits from
WP_List_Table
. Override methods to customize the table's behavior and appearance. -
Custom Columns: Define custom columns using
get_columns()
. Specify column slugs (keys) and display names (values). -
Sortable Columns: Make columns sortable with
get_sortable_columns()
. Map column slugs to database column names. -
Bulk Actions: Add bulk actions (e.g., delete selected items) using
get_bulk_actions()
.
WordPress uses WP_List_Table
internally for displaying posts, pages, and users. The article illustrates this with screenshots.
The tutorial builds a plugin demonstrating how to display sample customer data in a table. This involves:
-
Including the Class:
require_once( ABSPATH . 'wp-admin/includes/class-wp-list-table.php' );
-
Extending the Class: Creating a child class (e.g.,
Customers_List
) that extendsWP_List_Table
. -
Helper Methods: Methods like
get_customers()
,delete_customer()
, andrecord_count()
handle database interactions. -
Overriding Methods: Overriding methods like
no_items()
,column_name()
,column_default()
,column_cb()
,get_columns()
,get_sortable_columns()
,get_bulk_actions()
, andprepare_items()
to customize the table's functionality.prepare_items()
is crucial for data retrieval, pagination, and sorting. -
Bulk Action Handling: The
process_bulk_action()
method manages bulk delete operations, verifying nonces for security. -
Settings Page: A class (
SP_Plugin
) creates the admin page to display the table, using theadd_menu_page()
function and handling screen options for items per page.
The article includes code snippets for each of these steps and shows a screenshot of the resulting custom admin table. A final section provides FAQs covering common aspects of using WP_List_Table
, including adding filters, search boxes, and handling errors. The article concludes by mentioning that the complete plugin code is available on GitHub.
The above is the detailed content of Using WP_List_Table to Create WordPress Admin Tables. For more information, please follow other related articles on the PHP Chinese website!

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