> To: php-general@xxxxxxxxxxxxx
> Date: Wed, 25 Feb 2009 14:42:36 -0600
> From: nospam@xxxxxxxxxxxxx
> Subject: Re: Spaces Not Detected from Regular Expression preg_match
>
> Shawn McKenzie wrote:
> > Shawn McKenzie wrote:
> >> Alice Wei wrote:
> >>> Hi,
> >>>
> >>> I have a code as in the following:
> >>>
> >>> <?php
> >>>
> >>> $file = "test.txt";
> >>> $fp = fopen($file, "r");
> >>>
> >>> while(!feof($fp)) {
> >>> $data = fgets($fp, 1024);
> >>>
> >>> if ((preg_match("/0/",$data)) ||
> >>> (preg_match("/\"\s\"/",$data)) ||
> >>> (preg_match("/\"\s\"/",$data))) {
> >>> //Don't do a thing
> >>> }
> >>>
> >>> }
> >>> fclose($fp);
> >>>
> >>> ?>
> >>>
> >>>
> >>> This is the input file:
> >>>
> >>> 1
> >>> 23kd
> >>> 3dkd2
> >>> " "
> >>> 4
> >>> 5
> >>> 6
> >>>
> >>> For the output, I get nothing running it from the command prompt, but I would like to have " " in the output,
> >>> could anyone please give me some guides on what I have done wrong in my regular expression?
> >>>
> >>> Thanks for your help.
> >>>
> >>> Alice
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> _________________________________________________________________
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> >>> http://get.live.com/toolbar/overview
> >> Ummm... #1 you haven't "output" anything in your code. Your code says,
> >> if " " is found in $data, then "Don't do a thing".
> >>
> >>
> >>
> >
> > So if your wanting to see if there is a match in the line and return the
> > match (which in this example seems pointless because you know that you
> > are matching ""), then something like this:
> >
> > if (preg_match("/0/",$data, $matches) ||
> > preg_match("/\"\s\"/",$data, $matches))
> > {
> > print_r($matches);
> > }
> >
> > BTW, the second and third conditions in your if appeared to be the same,
> > also \s matches whitespace, spaces, tabs, returns, etc...
> >
>
> I'll wait for a reply with more information as the more I look at your
> code it seems your off on a strange track. I don't know the variability
> of your input data, but if you had a line 0 " " then the first
> preg_match would match the 0 and not the " ". Maybe that's what you
> want, dunno...
Thanks, but I found that using line numbers of each and its remainder by a certain number works etter than using regular expressions here, since there is a lot of variability in the data from line to line.
Alice
> --
> Thanks!
> -Shawn
> http://www.spidean.com
>
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