I have a WooCommerce module creating Wordpress usernames on my behalf. I want to make sure those usernames are sanitized according to my rules, which are stricter than the Wordpress requirements.
How can I hook / override sanitize_user to use my custom rules?
sanitize_user function has a sanitize_user filter. The filter gives you $username, $raw_username, $strict from the sanitize_user and expects you to return $username, according to the inline documentation:
/**
* Filters a sanitized username string.
*
* @since 2.0.1
*
* @param string $username Sanitized username.
* @param string $raw_username The username prior to sanitization.
* @param bool $strict Whether to limit the sanitization to specific characters. Default false.
*/
You would do something like:
function wpse_283736_sanitize_user_filter($username){
// do your sanitization with $username
return $username;
}
add_filter('sanitize_user', 'wpse_283736_sanitize_user_filter');
Or like this
function wpse_283736_sanitize_user_filter($username, $raw_username, $strict){
// do your sanitization with $username or maybe $raw_username
return $username; // or return $raw_username;
}
add_filter('sanitize_user', 'wpse_283736_sanitize_user_filter', 10, 3);
You could hook to pre_user_login filter, available on wp_insert_user function, which is used by Woocommerce user registration process.
$pre_user_login = apply_filters( 'pre_user_login', $sanitized_user_login );
function wpse_283736_pre_user_login_filter($sanitized_user_login){
// do your sanitization with $sanitized_user_login
return $sanitized_user_login;
}
add_filter('pre_user_login', 'wpse_283736_pre_user_login_filter', 10, 3);
If you are not familiar with WordPress Filters, I suggest you read these references first:
Hope it helps you.
