Find Domains on same IP with PHP

FindDomains.php

<?php
 
function reverseIP($IP)
{
    for($f=0; $f <= 2; $f++)
    {
        // this will list the results in the first two page...alter the code to get results from more number of pages
        $url='<a class="linkclass" href="http://www.bing.com/search?q=ip%3A">http://www.bing.com/search?q=ip%3A</a>'.$IP.'&amp;first='.$f.'1&amp;FORM=PORE';
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER[‘HTTP_USER_AGENT’]);
        curl_setopt($ch, CURLOPT_REFERER, "<a class="linkclass" href="http://yahoo.com/">http://yahoo.com/</a>");
        curl_setopt($ch, CURLOPT_MAXREDIRS, 5);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 5);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 20); // times out after 15s
        $searchResults= curl_exec($ch);
        curl_close($ch);
        $parsedData=explode("<li>",$searchResults);
        $cntArray=count($parsedData);
        for($x=0;$x<$cntArray;$x++)
        {
            if (preg_match('#<cite>(.*?)</cite>#i',$parsedData[$x], $matches))
            {
                $fullURL[]=$matches[1];
            }
        }
 
        $cntURL=count($fullURL);
 
        for($y=0; $y < $cntURL; $y++)
        {
            $result=explode('/',$fullURL[$y]);
            $TLD[]=$result[0];
        }
 
    }
    $uniqueTLDList=@array_unique($TLD); // we just want the unique domain names
    return $uniqueTLDList;
}
echo '</li>';
// specify the IP of your interest
$arr=reverseIP('69.162.116.154');
$size=sizeof($arr);
for($i=0;$i<$size;$i++) {
echo $arr[$i].'<br>';
}
?>