Targeted Adword Ads - something I whipped up

<h2>Google Ad Crawl</h2>

<?php

    $GooglePrefix = "http://www.google.com/search?q=";
    $GoogleCountSuffix ="&start=";
    $query ="car repair";
    $loop = 0;
    echo "Looking for ".$query."<br>";
    while ($loop<= 50)
    {
        $CompleteUrl = $GooglePrefix.$query.$GoogleCountSuffix.$loop;
        $res = $res.webFetcher($CompleteUrl);
        $loop = $loop+10;
    }
    echo "<hr>";
    $regx = do_reg($res, "/h2.class=r.*(http.*)\"/U");
    /* Now we want to fetch all those URLs*/
        for ($i = 0; $i < count($regx); $i++) 
        {
            $text = $regx[$i];
            $comp = webFetcher($text);
            if (preg_match("/google_ad/", $comp, $matches)) 
            {
                echo "Google ad code found! <a href=".$text.">".$text."</a><br>";
            }
        }
    
    function do_reg($text, $regex)
    {
        preg_match_all($regex, $text, $regxresult, PREG_PATTERN_ORDER);
        return $regresult = $regxresult[1];
    }
    
    function webFetcher($url)
    {
        /* This does exactly what it is named after - it fetches a page from the web, just give it the URL */
        $crawl = curl_init();
        curl_setopt ($crawl, CURLOPT_URL, $url);
        curl_setopt($crawl, CURLOPT_RETURNTRANSFER, 1);
        $resulting = $resulting.curl_exec($crawl); 
        curl_close($crawl);    
        return $result = $resulting;
    }
?>

      <h2>Google Ad Crawl</h2>
<?php
    /* Setting the variables 
    A google Query looks like this:    
    so here are the variables I need for my  query:
    http://www.google.com/search?q=MYQUERY&start=MYSTART
    ¦-------------------GooglePrefix------¦-----query--¦suffix¦-counter--¦
    */
    $GooglePrefix = "http://www.google.com/search?q=";
    $query ="link building";
    $GoogleCountSuffix ="&start=";
    //-----------------------------
    echo "Looking for ".$query."<br>";
    /* Loop to get the Google result pages 
    While going through the loop, we build the query URL out of the parts and the loop counter 
    The results are stored in the $res variable.
    Basically, we get the complete source code for each result page, and store ALL of them in one looong string.
    */
    while ($loop<= 30)
    {
        $CompleteUrl = $GooglePrefix.$query.$GoogleCountSuffix.$loop;
        $res = $res.webFetcher($CompleteUrl); // we use the function webFetcher to get the page
        $loop = $loop+10;
    }
    echo "<hr>";
    /* Now we use regular expressions to filter the URLs out of the result pages
    For this, the function "do_reg" is called, giving it the complete resultstring and the regular expression.
    The returned value (an array of matches) is stored in $regx
    */
    $resultURLs = do_reg($res, "/h2.class=r.*(http.*)\"/U");
    /* Now we want to fetch all those URLs
    Again, we use a loop for this. Some more explanations in the loop itself.
    */
        for ($i = 0; $i < count($resultURLs); $i++) //we use the length of the returned array to count.
        {
            $text = $resultURLs[$i]; //$text is set to the item in the result we are at
            $comp = webFetcher($text); //we get the page at the URL
            if (preg_match("/google_ad/", $comp, $matches))
            /* again, we use aregular expression function.
            This time, we are looking for "google_ad", a code snippet that tells us that google ads are used in the page.
            If found, this is true.
            */
            {
                echo "Google ad code found! <a href=".$text.">".$text."</a><br>";
            }
        }
    
    function do_reg($text, $regex) //returns all the found matches in an array
    {
        preg_match_all($regex, $text, $regxresult, PREG_PATTERN_ORDER);
        return $regresult = $regxresult[1];
    }
    
    function webFetcher($url)
    {
        /* This does exactly what it is named after - it fetches a page from the web, just give it the URL */
        $crawl = curl_init(); //the curl library is initiated, the following lines set the curl variables
        curl_setopt ($crawl, CURLOPT_URL, $url); //The URL is set
        curl_setopt($crawl, CURLOPT_RETURNTRANSFER, 1); //Tells it to return the results in a variable
        $resulting = $resulting.curl_exec($crawl);  //curl is executed and the results stored in $resulting
        curl_close($crawl);     // closes the curl procedure.
        return $result = $resulting;
    }
?>