[Tickets #12104] Re: Nag throwing PHP error

[noreply at bugs.horde.org]

BITTE NICHT AUF DIESE NACHRICHT ANTWORTEN. NACHRICHTEN AN DIESE  
E-MAIL-ADRESSE WERDEN NICHT GELESEN.

Ticket-URL: http://bugs.horde.org/ticket/12104
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  Ticket           | 12104
  Aktualisiert Von | torben at dannhauer.info
  Zusammenfassung  | Nag throwing PHP error
  Warteschlange    | Nag
  Version          | 4.0.2
  Typ              | Bug
  Status           | Feedback
  Priorität        | 1. Low
  Milestone        |
  Patch            |
  Zuständige       | Michael Rubinsky
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torben at dannhauer.info (2013-03-11 12:03) hat geschrieben:

> I don't see this. I am successfully syncing calendar/contacts/tasks/email.
>
> What is the value being passed to array_flip()? You can try  
> re-saving Nag's synchronization prefs via the UI, perhaps it got  
> corrupted somehow?

Hi,
are you using tasks while syncing? I re-saved the prefs, it doesn't  
help so I investigated the error a bit:


the mentioned error message is caused in horde/nag/lib/Nag.php in line 1603.

this line is located in the function "static public function getSyncLists()"
The first line festes the prefs an serializes the value:
         $cs = unserialize($GLOBALS['prefs']->getValue('sync_lists'));

The returned array contains usually some content:
Array
(
     [0] => or6rhw_UzWWoM8q5BrkCVA1
)

But sometimes it does not:
  Array
(
     [0] =>
)

As far as I know, the latter is not an empty array according to PHP  
definition, so the following  "if (!empty($cs)) "fails.

The above array is created by the function unserialize.
A debug revealed that "$GLOBALS['prefs']->getValue('sync_lists')" does  
not reveal always a value. So unserialize (btw: in which file is that  
unserialize function located?) should be fixed to return a proper  
emtpy value if the input is NULL.

Thanks,
Torben