public function id_to_url($id){
    if ( $file = $this->id_to_real($id) ){
      return $this->real_to_url($file);
    }
    return false;
  }
public function id_to_url($id){
    if ( $file = $this->id_to_real($id) ){
      return $this->real_to_url($file);
    }
    return false;
  }
public function id_to_url ( $ id ) { if ( $ file = $ this -> id_to_real ( $ id ) ) { return $ this -> real_to_url ( $ file ) ; } return false ; }
Returns the file's URL from its ID

@param string $id The file's ID
@return bool|string
Returns the file s URL from its ID