[Tickets #12103] Re: Blank page on browsing turba address books

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Ticket URL: http://bugs.horde.org/ticket/12103
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  Ticket             | 12103
  Updated By         | Michael Rubinsky <mrubinsk at horde.org>
  Summary            | Blank page on browsing turba address books
  Queue              | Turba
  Version            | 4.0.3
  Type               | Bug
  State              | Feedback
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             | Michael Rubinsky, Michael Slusarz
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Michael Rubinsky <mrubinsk at horde.org> (2013-03-09 19:09) wrote:

>> Anyway... I can't reproduce with Turba's browse.php.  So you need to
>> debug WHY the global injector value is empty (since according to the
>> code there appears to be no possible way this could happen).
>
> I'm seeing the same thing happening here too. If I change line 65 in  
> /usr/share/php5/PEAR/Horde.php
>
> from
>         if (Horde_Core_Factory_Logger::available()) {
> to
>         if (isset($GLOBALS['injector']) &&  
> Horde_Core_Factory_Logger::available()) {
>
> all is well again.
>
> This check was performed in Horde_Core-2.4.1, but was removed in  
> Horde_Core-2.4.2. So apparently the global injector value can be  
> empty. I'd love to provide a backtrace, but I lack the knowledge how  
> to. What code needs to be inserted here to provide a backtrace?

Something along the lines of:

if (empty($GLOBALS['injector'])) {
     Horde::debug('WTF???');
}

will log the backtrace in a horde_debug.txt file located in your tmp  
directory. Though like MIchael S. said, the only way it can be empty  
is if PHP is behaving badly.