Error Help

<html>
<body>
<?php


   $dbhost = 'x.x.x';
   $dbuser = 'x';
   $dbpass = 'x*';

   $conn = mysql_connect($dbhost, $dbuser, $dbpass);
   if(! $conn )
   {
     die('Could not connect: ' . mysql_error());
   }

   mysql_select_db('1737892_root') or trigger_error("Unable to switch to the database: " . mysql_error());


function arr($num,$part){

$ch = curl_init();
$r= rand (1,90);

$partt=intval($part);

if($partt==1){
$url="https://www.googleapis.com/customsearch/v1?q=G&num=10&start=".$r."&safe=off&cx=x:2hdsc4__avm&filter=0&c2coff=disable&alt=json&key=x";

}elseif($partt==2){


$url="https://www.googleapis.com/customsearch/v1?q=G&num=10&start=".$r."&safe=off&cx=xx:gxhaza__iwg&filter=0&c2coff=disable&alt=json&key=xx";
}elseif($partt==3){

$url="https://www.googleapis.com/customsearch/v1?q=G&num=10&start=".$r."&safe=off&cx=xxx:yzy968__ofi&filter=0&c2coff=disable&alt=json&key=xxx-K-uxTnbXtEI";
}elseif($partt==4){

$url="https://www.googleapis.com/customsearch/v1?q=G&num=10&start=".$r."&safe=off&cx=xxxx%3Anbwg77___eg&filter=0&c2coff=disable&alt=json&key=xxxx";


}else{

return '00';
exit;


}


curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$output = curl_exec($ch);


curl_close($ch);


        $a=intval($num);
        $data = json_decode($output, true);
        $se= $data['items'][$a]['pagemap']['cse_image'][0]['src'];
       // till here $se = "blah"
        if($se='' || $se=""||$se=NULL || !(isset($se))){

          $p=$part+1;

          arr($rr,$p);

        }

         $query = mysql_query("SELECT `url` FROM `url` WHERE `url`='".$se."'");

        if (mysql_num_rows($query) === 0)
  {

     $rr= rand (1,10);
        // return back
      mysql_query("INSERT INTO `url`(`url`) VALUES ('".$se."')");
      return $se;

  }else{
// Url already exists fetch another

     arr($rr,$part);


      }


$rr= rand (1,10);
$randed= arr($rr,'1');
echo $randed;
exit;

?>
</body>
</html>


This page takes forever to load!