What is WordPress Hook: pre_category_name
The pre_category_name hook in WordPress is used to modify the category name before it is saved to the database. This allows developers to perform custom actions or validations on the category name before it is finalized.
Understanding the Hook: pre_category_name
The pre_category_name hook is located within the wp_insert_category() function in WordPress. This function is called when a new category is added or an existing category is updated. The pre_category_name hook allows developers to intercept the category name before it is processed and saved.
Hook Parameters (if applicable): pre_category_name
The pre_category_name hook accepts a single parameter, $cat_name, which represents the category name being processed. Developers can modify this parameter within the hooked function to change the category name before it is saved.
Hook Doesn’t Work: pre_category_name
If the pre_category_name hook doesn’t seem to be working, it could be due to the hook being added after the category name has already been processed. Ensure that the hook is added before the wp_insert_category() function is called. Additionally, check for any conflicts with other plugins or themes that may be modifying category names.
Best Practices & Usage Notes (if applicable): pre_category_name
When using the pre_category_name hook, it’s important to note that any changes made to the category name within the hooked function will affect the final name saved to the database. Developers should also consider the potential impact on other parts of the WordPress site that rely on category names.
pre_category_name Usage Example: pre_category_name
“`php
function modify_category_name( $cat_name ) {
// Add a prefix to the category name
$cat_name = ‘New Prefix: ‘ . $cat_name;
return $cat_name;
}
add_filter( ‘pre_category_name’, ‘modify_category_name’ );
“`
