On Fri, 6 Mar 2009 21:32:53 +0200, Nitsan Bin-Nun wrote:

> Hi lista,
> I have been trying to figure this out for the last couple of hours but I'm
> lack of luck.
> Take a look at these regex's, the string that was inputed into the
> preg_replace (using Uis modificators) and the results:
> (the lists have correspondence to each other)
> ----
> http://www.zshare.net/video/541070871c7a8d9c
> REGEX USED (with Uis modificators)
> ----
> http:\/\/(www\.|)zshare\.net\/video\/([^\/]+)               $3
> ----
> 41070871c7a8d9c

Is this what you're doing?

  echo preg_replace('/http:\/\/(www\.|)zshare\.net\/video\/([^\/]+)/Uis',
                    '', 'http://www.zshare.net/video/541070871c7a8d9c');
  echo "\n";

The "U" modifier turns the plus ungreedy so that it matches
only the first character. And what's the "$3" about?
Are you doing this?

  echo preg_replace('/http:\/\/(www\.|)zshare\.net\/video\/([^\/]+)/Uis',
                    '$3', 'http://www.zshare.net/video/541070871c7a8d9c');
  echo "\n";

I think someone mentioned that the index "$3" doesn't exist.
If you change it to "$2" you would get the correct result
because "$2" mathces "5" and the rest ("41070871c7a8d9c")
remains unreplaced. At least that's what I think is going


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