[Tickets #13455] [kronolith] PHP ERROR: Undefined offset: 1 [pid 8052 on line 169 of "/usr/share/php/Horde/Timezone/Zone.php"]

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Ticket URL: http://bugs.horde.org/ticket/13455
------------------------------------------------------------------------------
  Ticket             | 13455
  Created By         | skhorde at smail.inf.fh-bonn-rhein-sieg.de
  Summary            | [kronolith] PHP ERROR: Undefined offset: 1 [pid 8052 on
                     | line 169 of "/usr/share/php/Horde/Timezone/Zone.php"]
  Queue              | Horde Framework Packages
  Version            | Git master
  Type               | Bug
  State              | Unconfirmed
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             |
------------------------------------------------------------------------------


skhorde at smail.inf.fh-bonn-rhein-sieg.de (2014-08-20 07:37) wrote:

I'm getting this error quite often from

  $this->_info[$line] = array(
   0 => '-0:36:32',
   1 => '-',
   2 => 'LMT',
   3 => '1912',
   4 => 'Jan',
   5 => '1',
   6 => '',
)

In line 140 of Horde/Timezone/Zone.php $date[3] == '', therefore line  
141 matches nothing.

         $time = isset($date[3]) && $date[3] != '-' ? $date[3] : 0;

Dunno if the data in the array makes any sense at all, but how about  
to change:

         $time = isset($date[3]) && $date[3] != '-' ? $date[3] : 0;
         preg_match('/(\d+)(?::(\d+))?(?::(\d+))?(w|s|u)?/', $time, $match);
         if (!isset($match[2])) {

into

!       $time = isset($date[3])? $date[3] : 0;
         preg_match('/(\d+)(?::(\d+))?(?::(\d+))?(w|s|u)?/', $time, $match);
+       if (!isset($match[1])) {
+           $match[1] = 0;
+       }
          if (!isset($match[2])) {