What is WordPress Hook: pre_handle_404
The pre_handle_404 hook in WordPress is used to intercept the 404 error before it is displayed to the user. It allows developers to perform custom actions or redirect the user to a different page when a 404 error occurs.
Understanding the Hook: pre_handle_404
The pre_handle_404 hook is located in the wp-includes/class-wp.php file and is triggered when WordPress is unable to find the requested content. It provides developers with the opportunity to handle 404 errors programmatically before they are rendered to the user.
Hook Parameters (if applicable): pre_handle_404
The pre_handle_404 hook does not accept any parameters.
Hook Doesn’t Work: pre_handle_404
If the pre_handle_404 hook doesn’t work as expected, it could be due to conflicts with other plugins or themes. It is recommended to deactivate other plugins and switch to a default theme to troubleshoot the issue. Additionally, double-check the code implementation to ensure it is correctly registered and functioning as intended.
Best Practices & Usage Notes (if applicable): pre_handle_404
When using the pre_handle_404 hook, it is important to consider the impact on user experience. Redirecting users should be done thoughtfully to provide relevant and helpful content. It is also advisable to test the functionality thoroughly to ensure it works as intended across different scenarios.
pre_handle_404 Usage Example: pre_handle_404
“`php
function custom_pre_handle_404() {
// Perform custom actions when a 404 error occurs
// Redirect the user to a different page
}
add_action( ‘pre_handle_404’, ‘custom_pre_handle_404’ );
“`
