What is WordPress Hook: uninstall_{$file}
The uninstall_{$file} hook in WordPress is used to perform actions when a specific plugin or theme is uninstalled from the WordPress website. This hook allows developers to execute custom code when their plugin or theme is being removed from a WordPress installation.
Understanding the Hook: uninstall_{$file}
The uninstall_{$file} hook is located within the uninstall.php file of a WordPress plugin or theme. This file is used to handle the cleanup process when the plugin or theme is being uninstalled. The hook is triggered when the uninstall.php file is included during the uninstallation process.
Hook Parameters (if applicable): uninstall_{$file}
The uninstall_{$file} hook does not accept any arguments or parameters. It is simply used to trigger custom actions when the plugin or theme is uninstalled.
Hook Doesn’t Work: uninstall_{$file}
If the uninstall_{$file} hook doesn’t work as expected, it could be due to the uninstall.php file not being properly structured or included in the plugin or theme. Developers should ensure that the uninstall.php file is correctly formatted and located in the plugin or theme directory.
Best Practices & Usage Notes (if applicable): uninstall_{$file}
When using the uninstall_{$file} hook, developers should be mindful of the actions they perform to avoid any unintended consequences during the uninstallation process. It is recommended to only include essential cleanup tasks within the uninstall.php file to ensure a smooth uninstallation experience for users.
Usage Example: uninstall_{$file}
“`php
// Define custom uninstallation actions
function custom_uninstall_actions() {
// Perform cleanup tasks when the plugin or theme is uninstalled
// Example: delete custom database tables
// Example: remove custom options from the database
}
register_uninstall_hook( __FILE__, ‘custom_uninstall_actions’ );
“`