Getting part of another HTML page

I'd like some help with writing a script that grabs part of another HTML page.

For example :

I want to grab the content of a HTML page that contains the following strings :

<!-- begin --> and <!-- end -->

Then I want to get all the content (including these two tags) that is in between the two tags.

Could someone help me?

Thanks,
Iwan

<?
$server = "www.whatever.com";
$file = "/path/to/file.html";
$fp = fsockopen($server, 80, &$errno, &$errstr);
if ($fp) {
fputs($fp,"GET $file HTTP/1.0nHost: $servernn");
$getit = false;
while ($line = fgets($fp, 4096)) {
if (eregi("<!-- begin -->", $line)) {
$getit = true;
}
elseif (eregi("<!-- end -->", $line)) {
$getit = false;
}
if ($getit == true) {
$lines[] = $line;
}
}
fclose($fp);
}
?>

A bit of a kludge, but it works (I hope :-)

Thanks a lot!

It works perfectly, exactly what I needed!

Iwan