What is WordPress Hook: wp_unique_term_slug
The wp_unique_term_slug hook is a function in WordPress that is used to generate a unique slug for a term before it is inserted into the database. This hook is essential for ensuring that each term has a unique identifier within the WordPress system.
Understanding the Hook: wp_unique_term_slug
The wp_unique_term_slug hook is located within the wp_unique_term_slug() function in the WordPress core. This function is called when a new term is added to a taxonomy to ensure that the term’s slug is unique within that taxonomy.
Hook Parameters (if applicable): wp_unique_term_slug
The wp_unique_term_slug hook accepts three parameters: $slug, $term, and $taxonomy. The $slug parameter is the proposed slug for the term, $term is the term object, and $taxonomy is the taxonomy object. These parameters are used to generate a unique slug for the term.
Hook Doesn’t Work: wp_unique_term_slug
If the wp_unique_term_slug hook is not working as expected, it may be due to conflicts with other plugins or themes that modify term slugs. It is recommended to deactivate other plugins and switch to a default theme to troubleshoot the issue. Additionally, ensuring that the term and taxonomy objects are correctly passed to the hook can help resolve any issues.
Best Practices & Usage Notes (if applicable): wp_unique_term_slug
When using the wp_unique_term_slug hook, it is important to note that it only applies to terms within a specific taxonomy. If you need to generate unique slugs for terms across multiple taxonomies, additional customization may be required. It is also recommended to sanitize and validate the input before using the wp_unique_term_slug hook to ensure the generated slug is safe and valid.
Usage Example: wp_unique_term_slug
“`php
function custom_unique_term_slug( $slug, $term, $taxonomy ) {
// Custom logic to generate a unique slug for the term
return $unique_slug;
}
add_filter( ‘wp_unique_term_slug’, ‘custom_unique_term_slug’, 10, 3 );
“`