I am using Services 3.x for creating web services for mobile application, and I am using the JSON format.

The validation errors given from the user register services comes with HTML tags; for example the email already exists error is the following one.

<em> the@email.com</em> is already in use.  Have you forgotten your password?".

How do I strip those HTML tags from the error message?


hook_services_request_postprocess_alter() looks like a good candidate. I don't have an installation to test with right now but something like this ought to work:

function MYMODULE_services_request_postprocess_alter($controller, $args, &$result) {
  if (isset($result['form_errors'])) {
    array_walk($result['form_errors'], function(&$error) {
      $error = strip_tags($error);
  • MYMODULE_services_request_postprocess does not work but MYMODULE_services_request_postprocess_alter works for some of the endpoints. It worked for the default services in the module but not for custom services, I have created a custom services for user register login to save some extra data. – Puneet May 3 '17 at 6:11
  • Oops, yeah it has _alter at the end you're right. I don't know about the custom services, in theory there shouldn't be any difference as the results all go through the same processing regardless of source module – Clive May 3 '17 at 6:42

In Drupal 8 you can do it by using Markup:

use \Drupal\Core\StringTranslation\TranslatableMarkup;
$message = new TranslatableMarkup('<b>@message!</b>', array('@message' => 'A bold error'));


$mainMessage = "<em> the@email.com</em> is already in use.  Have you forgotten your password?";
$rendered_message = \Drupal\Core\Render\Markup::create($mainMessage);

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