What is WordPress Hook: Sanitize_Meta
The sanitize_meta hook in WordPress is used to sanitize meta data before it is stored in the database. This hook allows developers to modify or validate meta data before it is saved, ensuring that it meets specific criteria or standards.
Understanding the Hook: Sanitize_Meta
The sanitize_meta hook is located within the update_metadata function in WordPress. This function is responsible for updating metadata for a specific type of object, such as a post, user, or term. The sanitize_meta hook is called just before the meta data is updated, allowing developers to modify the data as needed.
Hook Parameters (if applicable): Sanitize_Meta
The sanitize_meta hook accepts three parameters: $meta_key, $meta_value, and $meta_type. The $meta_key parameter is the key of the meta data being updated, $meta_value is the new value of the meta data, and $meta_type is the type of object the meta data is associated with.
Hook Doesn’t Work: Sanitize_Meta
If the sanitize_meta hook doesn’t seem to be working, it could be due to a few different reasons. First, it’s important to check that the hook is being called at the appropriate time within the update_metadata function. Additionally, double-check that any modifications made within the hook are not conflicting with other code or filters.
Best Practices & Usage Notes (if applicable): Sanitize_Meta
When using the sanitize_meta hook, it’s important to keep in mind that any modifications made to the meta data should align with the overall purpose and functionality of the data. Additionally, developers should be cautious when making significant changes to the meta data, as this could impact other areas of the WordPress site.
Sanitize_Meta Usage Example: Sanitize_Meta
“`php
function custom_sanitize_meta( $meta_key, $meta_value, $meta_type ) {
// Perform custom sanitization or validation here
return $meta_value;
}
add_filter( ‘sanitize_meta’, ‘custom_sanitize_meta’, 10, 3 );
“`
