Edit report at https://bugs.php.net/bug.php?id=16119&edit=1

 ID:                 16119
 Comment by:         uramihsayibok at gmail dot com
 Reported by:        joho at webbplatsen dot se
 Summary:            Swapping two elements of an array
 Status:             Open
 Type:               Feature/Change Request
 Package:            Feature/Change Request
 Operating System:   All
 PHP Version:        4.1.2
 Block user comment: N
 Private report:     N

 New Comment:

You can do this in one statement with list().
  list($ar[1], $ar[0]) = array($ar[0], $ar[1]);

Note that due to how list() works you CANNOT use a shorthand of
  list($ar[1], $ar[0]) = $ar;


Previous Comments:
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[2002-03-16 18:52:05] joho at webbplatsen dot se

I must be getting old, but I cannot seem to find a function that swaps the data 
of two array entries. Like so:

$ar[0] = "second";
$ar[1] = "first";

array_swap ($ar, 0, 1);

I have not overlooked the sort functions, that is not what I am after. But I 
may have overlooked other possibilities. Searching for "swap" in the PHP .CHM 
(fairly recent) yielded no hits.


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