PHP backlink checker script

This is probably the simplest script that anyone knowing (or even learning) PHP can create in about 15seconds. But I will still post it here just in case anyone is a total noob at PHP.

Purpose of this script: To check a certain given backlink on hundreds of webpages provided you know the URL of every webpage.

<?php



$source = file_get_contents("source.txt");

$needle = "www.IamtryingtocheckThisPage";   //without http as I have imploded the http later in the script

$new = explode("n",$source);



foreach ($new as $check) {

$a = file_get_contents("http://".trim($check));



if (strpos($a,$needle)) {

$found[] = $check;

	 } else {

	 $notfound[] = $check;

			}

						}



echo "Matches that were found: n ".implode("n",$found)."n";

echo "Matches that were not found n". implode("n",$notfound);

?>

or Other way

<?php

function check_back_link($remote_url, $your_link) {

    $match_pattern = preg_quote(rtrim($your_link, "/"), "/");

    $found = false;

    if ($handle = @fopen($remote_url, "r")) {

        while (!feof($handle)) {

            $part = fread($handle, 1024);

            if (preg_match("/<a(.*)href=["']".$match_pattern.

"(/?)["'](.*)>(.*)</a>/", $part)) {

                $found = true;

                break;

            }

        }

        fclose($handle);

    }

    return $found;

}

// example:

//if (check_back_link("http://www.abc.com", "http://www.xyz.com")) echo "link exists";

?>