[Tickets #9102] Dovecot folders subscription

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Ticket URL: http://bugs.horde.org/ticket/9102
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  Ticket             | 9102
  Created By         | leandro.damascena at gmail.com
  Summary            | Dovecot folders subscription
  Queue              | IMP
  Version            | Git master
  Type               | Bug
  State              | Unconfirmed
  Priority           | 2. Medium
  Milestone          |
  Patch              | 1
  Owners             |
+New Attachment     | inbox_subs.diff
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leandro.damascena at gmail.com (2010-06-18 00:53) wrote:

Dovecot by default doesn't use subscription for INBOX (at least in my  
mailserver) and this produces a error in IMAP Tree Folders... Looking  
at the source code I could find an error when the INBOX is  
unsubscribed...

protected function _getList($showunsub) in imp/lib/Imap/Tree.php...  
This function tests if result list doesn't contain INBOX and FORCE an  
array to increment INBOX, however, this function use array_merge and  
it produces an error when some folder has a numeric name (in my case  
my folder is: 2009 or 2010)...

Looking at PHP documentation I saw  
(http://php.net/manual/en/function.array-merge.php):
If all of the arrays contain only numeric keys, the resulting array is  
given incrementing keys starting from zero.
If you want to append array elements from the second array to the  
first array while not overwriting the elements from the first array  
and not re-indexing, use the + array union operator:
<?php
$array1 = array(0 => 'zero_a', 2 => 'two_a', 3 => 'three_a');
$array2 = array(1 => 'one_b', 3 => 'three_b', 4 => 'four_b');
$result = $array1 + $array2;
var_dump($result);
?>