private function sendString ($string) {
    $bytes_sent = fwrite($this->pop_conn, $string, strlen($string));

    return $bytes_sent;
  }
private function sendString ($string) {
    $bytes_sent = fwrite($this->pop_conn, $string, strlen($string));

    return $bytes_sent;
  }
private function sendString ( $ string ) { $ bytes_sent = fwrite ( $ this -> pop_conn , $ string , strlen ( $ string ) ) ; return $ bytes_sent ; }
Send a string down the open socket connection to the POP3 server
@access private
@param string $string
@return integer
Send a string down the open socket connection to the POP3 server