$date = '04.09.2002';
$date = preg_replace('/(\d{2}).(\d{2}).(\d{4})/', '\\3.\\2.\\1', $date);
echo $date;

Output:
2002.09.04

Read up for more info.
http://www.php.net/manual/en/ref.pcre.php

regards
alan

Bård tommy nilsen wrote:
> I want to sort text strings, but how could i do this ?
> 
> Example:
> 
> 04.09.2002
> 05.09.2002
> 19.03.1999
> 
> 
> Is there a way to "change" the string to something like this ...
> 
> 2002.09.04
> 2002.09.05
> 1999.03.19
> 
> Or is there a better way to solve this ??
> 
> 
> Bård Tommy Nilsen


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