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php - extract text from tag

Hi I've got these lines here, I am trying to extract the first paragraph found in the file, but this fails to return any results, if not it returns results that are not even in <p> tags which is odd?

$file = $_SERVER['DOCUMENT_ROOT'].$_SERVER['REQUEST_URI'];
$hd = fopen($file,'r');
$cn = fread($hd, filesize($file));
fclose($hd);

$cnc = preg_replace('/<p>(.+?)</p>/','$1',$cn);
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by (71.8m points)

Try this:

$html = file_get_contents("http://localhost/foo.php");
preg_match('/<p>(.*)</p>/', $html, $match);
echo($match[1]);

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