[wp-trac] Re: [WordPress Trac] #9661: cat_row doesn't not list all categories

[WordPress Trac]

#9661: cat_row  doesn't not list all categories
--------------------------+-------------------------------------------------
 Reporter:  hailin        |        Owner:  anonymous 
     Type:  defect (bug)  |       Status:  closed    
 Priority:  normal        |    Milestone:  Unassigned
Component:  General       |      Version:            
 Severity:  normal        |   Resolution:  invalid   
 Keywords:                |  
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Changes (by hakre):

  * status:  new => closed
  * resolution:  => invalid


Comment:

 Replying to [ticket:9661 hailin]:
 > [...] The key reason is that within loop
 >
 > foreach ( $categories as $category )
 >   ...
 >   unset($categories[$i]) //Prune the working set
 >
 > We can not unset an element while the foreach loop is traversing the
 array, because it causes the internal PHP cursor to jump ahead, leaving
 out valid elements.

 That is not true. foreach() works on a copy of the array so you do not
 manipulate the array pointer while removing one element from the (source)
 array while iterating over a copy of the (source) array. compare to
 http://de.php.net/manual/en/control-structures.foreach.php .

 since you name that beign the "key reason" I assume that your report is
 invalid. I therefore close it as invalid. Feel free to provide more info
 and reopen it.

 Please name the wordpress version you provided the patch for.

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Ticket URL: <http://core.trac.wordpress.org/ticket/9661#comment:2>
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