What is WordPress Hook: manage_{$page}_columns
The manage_{$page}_columns hook is a specific WordPress hook that allows developers to modify the columns displayed on a particular admin page in the WordPress dashboard. This hook is commonly used to customize the columns shown in post, page, or custom post type listings.
Understanding the Hook: manage_{$page}_columns
The manage_{$page}_columns hook is located within the WordPress admin interface and is typically used in combination with the manage_{$post_type}_posts_columns hook to add, remove, or modify the columns displayed in the admin page for a specific post type.
Hook Parameters (if applicable): manage_{$page}_columns
The manage_{$page}_columns hook does not accept any specific parameters, as it is primarily used to modify the columns displayed on the admin page for a specific post type.
Hook Doesn’t Work: manage_{$page}_columns
If the manage_{$page}_columns hook doesn’t seem to be working as expected, it could be due to a variety of reasons. One common issue is that the hook is being added in the wrong place within the code, or there may be a conflict with another plugin or theme function. To troubleshoot, it’s recommended to deactivate other plugins and switch to a default theme to see if the issue persists.
Best Practices & Usage Notes (if applicable): manage_{$page}_columns
When using the manage_{$page}_columns hook, it’s important to keep in mind that modifying the columns in the admin page can affect the user experience for other administrators or editors. It’s best practice to clearly document any changes made using this hook and to thoroughly test the modifications to ensure they work as intended.
Usage Example: manage_{$page}_columns
“`php
function custom_post_columns( $columns ) {
$columns[‘author’] = ‘Author’;
return $columns;
}
add_filter( ‘manage_{$page}_columns’, ‘custom_post_columns’ );
“`
In this example, the manage_{$page}_columns hook is used to add a new “Author” column to the admin page for a specific post type. This allows the author of each post to be displayed in the admin interface, providing additional information for administrators and editors.
