original_string: public function getGroupById($id_group)
      {
          if (array_key_exists($id_group, $this->byid)) {
              return $this->byid[$id_group];
          }
  
          return false;
      }
code: public function getGroupById($id_group)
      {
          if (array_key_exists($id_group, $this->byid)) {
              return $this->byid[$id_group];
          }
  
          return false;
      }
code_tokens: public function getGroupById ( $ id_group ) { if ( array_key_exists ( $ id_group , $ this -> byid ) ) { return $ this -> byid [ $ id_group ] ; } return false ; }
docstring: Returns a group by it's id
  
  @param int $id_group
  Internal id of group
  
  @return mixed|boolean
docstring_tokens: Returns a group by it s id