Warning: array_filter() expects parameter 1 to be array, string given in field_collection_item_is_empty() on line 591 [#2656036]

The message is found several times in row in my watchdog table.
Checking the source code at the specified line we can clearly see that the problem is hardcoded:
$all_boolean = $instances && !(bool) array_filter('_field_collection_field_is_not_boolean');

Comments

Comment #1

25 January 2016 at 10:58

andrea.cividini created an issue. See original summary.

Comment #2

BradK CreditAttribution: BradK commented 25 January 2016 at 21:55

I found this as well today, after updating to beta10. Hard to believe it's been in the wild for 3 months and is only now being noticed?

The easy solution is to replace the offending line with the ones from beta9, which makes sense and works. beta10 seems like just a typo.

  // Check whether all fields are booleans.
  //$all_boolean = $instances && !(bool) array_filter('_field_collection_field_is_not_boolean');
  $all_boolean = $instances && !(bool) array_filter($instances, function ($instance) {
    $field = field_info_field($instance['field_name']);
    return $field['type'] != 'list_boolean';
  });