helpful_user_string
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This allows you to specify the ID generated by Helpful for the user to identify. This ID is stored in a PHP session if cookies are not allowed. From the ID no user data can be read out, it is therefore GDPR conform.
/**
* Here you can generate your own ID for your users. By default,
* a unique random string is created. This ID is automatically stored
* in a cookie or a session, depending on what is currently working.
*
* @param string $user_id user id string.
* @return string
*/
function custom_function( $user_id ) {
$user_id = 'unique_user_id';
return $user_id;
}
add_filter( 'helpful_user_string', 'custom_function' );