3

In Drupal 7, I'm getting this error and want to fix it:

  • Warning: array_merge() [function.array-merge]: Argument #1 is not an array in _form_set_class() (line 4021 of {my site}/includes/form.inc).
  • Warning: array_merge() [function.array-merge]: Argument #1 is not an array in _form_set_class() (line 4021 of {my site}/includes/form.inc).
  • Warning: implode() [function.implode]: Invalid arguments passed in theme_radios() (line 2746 of {my site}/includes/form.inc).

What does this mean, and what should I do about it?

Improve this question
2
  • What you did do cause the error would be most helpful to know.
    – Letharion
    Jan 23, 2012 at 8:05
  • I had the same problem, when I uninstalled the module Custom Breadcrumbs (7.x-1.x-dev) and reinstalled again, it was solved.
    – user5289
    Jan 31, 2012 at 20:27

3 Answers 3

Reset to default
10

For me it happened; when I used

$form['field']['#attributes'] = array('class' => 'myclass');

While it should be

$form['field']['#attributes'] = array('class' => array('myclass'));

Improve this answer
1

There's likely a buggy FAPI definition. Are you developing a form? If so, check your form definition. It's not being returned as an array.

Improve this answer
0

So i figured it out, I wasn't sure what I had done to make this start happening, but it was being caused by the "Drupal for Facebook" module. It was only popping up when I was on a node edit page strangely. For those familiar, I had the "FB User Management" enabled and after disabling, it stopped giving me the error.

Improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.