Working With text files and finding keywords

Revenge2K

how do i make php read a text file then find keywords in that file and only display the results of what it found (i'm going to use wildcards with the keywords so i can sort data to different text files)
that way it can only display the part of the text it found and write it to a new text file... i was wondering if anybody could give me an example of that or tell me what commands?
I really appreciate anybody who helps thanks.

Edit:
Example of what's in text.txt

XServer=192.168.1.2;

XServer=192.168.1.3;

XServer=192.168.1.4;

XServer=192.168.1.5;

XResolutionServer=192.168.1.6;

XResolutionServer=192.168.1.7;

XResolutionServer=192.168.1.8;

I'd want my PHP code to key in on the XServer part (leaving th resolution part out) and write that section of the text file to a new (text)file so i can do something with that text file...
does anybody have an example or some code on how to do this?
all help is appreciated.

NogDog

It's not entirely clear to me what you are asking, but it sounds like you probably want to do something with [man]preg_match_all/man (along with [man]file_get_contents/man to read the file).

Revenge2K

NogDog wrote:
It's not entirely clear to me what you are asking, but it sounds like you probably want to do something with [man]preg_match_all/man (along with [man]file_get_contents/man to read the file).

I was editing as you replied man sorry... maybe some of my edits can make my post a little bit more understandable.. sorry about that.

NogDog

Maybe something like this (untested and with no defensive coding):

$data = file('path/to/file.txt');
$xserverData = array();
foreach($data as $line)
{
   if(strpos($line, 'XServer=') === 0)  // be sure to use "==="
   {
      $xserverData[] = $line;
   }
}
$fh = fopen('xserver_data.txt', 'w');
fwrite($fh, implode('', $xserverData));
fclose($fh);

Revenge2K

Thank you so much NogDog that did the trick and that really helped i'll try to learn how that script works (i can see how it works but i mean each function that is) so i can apply it to my future php scripts thanks man you're a lifesaver.