Sending message to a mobile number via fsockopen

Code:
$sms_host = 'sms.abc.com';       //sms processing gateway 

$str = "/abc/abc.asp?";      //path to script  

$str .= "username=abc&";             //the required parameters >> downwards

$str .= "password=abc&"; 

$str .= "message=testing&";           

$str .= "mobile=3667348829&"; 

$str .= "sender=CallBackNow&"; 

$str .= "type=0"; 

 

$request = "GET " . $str . " HTTP/1.1\r\n";   

$request .= 'Host: '.$sms_host.' \r\n';

$reply = "";  



$fp = fsockopen($sms_host, 80, $errno, $errstr, 30);

if (!$fp) 

{

    echo "$errstr ($errno)<br />\n";

} 

else 

{

    fwrite($fp, $request);

    

    while (!feof($fp)) {

        $reply =  fgets($fp, 128);

    }

    

    fclose($fp);

}