Foreign GET Query

first and second method needs allow_url_fopen true as ini set
third method can get all the data although allow url fopen false...
$lookup="http://aaa.zzzz.yyyy/country.php?ip='$ip'";

//FIRST
$firstbuffer="";
$html=fopen($lookup,"rb");
while(!feof($f)){
   $firstbuffer.=fread($f,4096);
}
fclose($f);

//SECOND
$secondbuffer=file_get_contents($loopkup);

//THIRD
if(preg_match("/^http:\/\/([^\/]+)(.*)$/", $lookup, $matches)){
         $response ="";
         $thirbuffer = '';
         $host = $matches[1];
         $uri = $matches[2];

         $request = "GET $uri HTTP/1.0\r\n";
         $request .= "Host: $host\r\n";
         $request .= "User-Agent: Mozilla \r\n";
       $request .= "Connection: close\r\n\r\n";

         if($http = fsockopen($host, 80, $errno, $errstr, 5)){
                fwrite($http, $request);
                $timeout = time() + 5;
                while(time() < $timeout && !feof($http)) {
                    $response .= fgets($http, 4096);
                      }
                list($header, $thirbuffer) = preg_split("/\r?\n\r?\n/", $response, 2);                  
               }
      }