What is WordPress Hook: pre_update_option
The pre_update_option hook in WordPress is used to perform actions or modifications before an option value is updated in the database. This hook allows developers to intervene and make changes to the option value before it is saved.
Understanding the Hook: pre_update_option
The pre_update_option hook is located within the update_option function in WordPress. This function is responsible for updating the value of an option in the database. The pre_update_option hook is triggered just before the option value is updated, allowing developers to modify the value or perform additional actions.
Hook Parameters (if applicable): pre_update_option
The pre_update_option hook accepts two parameters: $option and $new_value. The $option parameter is the name of the option being updated, and the $new_value parameter is the new value that will be saved in the database. Developers can access and modify these parameters within the hooked function.
Hook Doesn’t Work: pre_update_option
If the pre_update_option hook doesn’t seem to be working, it could be due to incorrect usage or conflicts with other hooks or functions. It’s important to ensure that the hooked function is properly defined and that any modifications to the option value are being applied correctly. Additionally, conflicts with other plugins or themes could also prevent the hook from functioning as expected.
Best Practices & Usage Notes (if applicable): pre_update_option
When using the pre_update_option hook, it’s important to keep in mind that any modifications made to the option value will affect the value that is ultimately saved in the database. Developers should also be cautious when using this hook, as it directly impacts the data stored in the WordPress database. It’s recommended to thoroughly test any modifications made within the hooked function to ensure they are functioning as intended.
pre_update_option Usage Example: pre_update_option
“`php
function modify_option_value_before_update( $option, $new_value ) {
// Perform actions or modifications before the option value is updated
if ( $option == ‘my_option’ ) {
$new_value = sanitize_text_field( $new_value );
}
return $new_value;
}
add_filter( ‘pre_update_option’, ‘modify_option_value_before_update’, 10, 2 );
“`
In this example, the pre_update_option hook is used to modify the value of the ‘my_option’ before it is updated in the database. The hooked function sanitize_text_field is applied to the new value, ensuring that it is properly sanitized before being saved.
