preg_replace results and non results

[bluewalrus]

Is there a way to get both the found results and the non found results from a preg_replace?

$pattern = '/<tr id="'. $id_on . '">\n\t\t<td>(.*)<\/td>\n\t\t<td>(.*)</td>\n\t\t<td class="user">(.*)<\/td>\n\t<\/tr>/';
$replacement = "";
$move_over = preg_replace($pattern, $replacement, $pending_files); 

This is the code I currently have, which pulls the data I want out of the first file but I then want to write it into a second file. I was thinking something like

$move_over = preg_replace(!$pattern, $replacement, $pending_files); 

but that didn't work I figure there must be some way to do this though...

[james438]

Could you explain in a bit more detail what it is you are trying to do? At first glance it sounds like you are trying to use preg_replace() to do a preg_match_all() function and then write it to a file.

What are the results you are trying to get? Are you trying to retrieve results or change them?

It is interesting to see someone using \t in a preg_replace. I have not really found a use for it yet. Could you explain where you are using it? I'm rather interested.

[bluewalrus]

I've got 2 files "done", and "not done".

Not done contains something like

<table border="1">
    <tr>
        <td style="font-weight:bold;">Pending Task</td>
        <td style="font-weight:bold;">Date Requested</td>
        <td style="font-weight:bold;" id="user">Requestor</td>
    </tr>
    <tr id="0">
        <td>test abc</td>
        <td>6/16/10 12:43:18 pm</td>
        <td class="user">4</td>
    </tr>
</table> 

That regex pulls out this part

    <tr id="0">
        <td>test abc</td>
        <td>6/16/10 12:43:18 pm</td>
        <td class="user">4</td>
    </tr> 

and I then rewrite back to the "not done" file something like

<table border="1">
    <tr>
        <td style="font-weight:bold;">Pending Task</td>
        <td style="font-weight:bold;">Date Requested</td>
        <td style="font-weight:bold;" id="user">Requestor</td>
    </tr>
</table> 

or anything else that isn't done. I then want to send the info I removed from that file to the "done" file. Any ideas? Thanks.

[bluewalrus]

So this does it but I figure there must be another way rather than running the same search twice...

    $pending_files = file_get_contents('2bedone.txt');
    $pattern = '/<tr id="'. $id_on . '">\n\t\t<td>(.*)<\/td>\n\t\t<td>(.*)<\/td>\n\t\t<td class="user">(.*)<\/td>\n\t<\/tr>/';
    $replacement = "";
    preg_match($pattern, $pending_files, $matches);
    $move_over = preg_replace($pattern, $replacement, $pending_files);
    echo $matches[0];