original_string: private function readConfigFile(string $configFilename): array
    {
      $settings = parse_ini_file($configFilename, true);
  
      $this->constantsFilename = self::getSetting($settings, false, 'constants', 'columns');
      $this->className         = self::getSetting($settings, false, 'constants', 'class');
  
      return $settings;
    }
code: private function readConfigFile(string $configFilename): array
    {
      $settings = parse_ini_file($configFilename, true);
  
      $this->constantsFilename = self::getSetting($settings, false, 'constants', 'columns');
      $this->className         = self::getSetting($settings, false, 'constants', 'class');
  
      return $settings;
    }
code_tokens: private function readConfigFile ( string $ configFilename ) : array { $ settings = parse_ini_file ( $ configFilename , true ) ; $ this -> constantsFilename = self :: getSetting ( $ settings , false , 'constants' , 'columns' ) ; $ this -> className = self :: getSetting ( $ settings , false , 'constants' , 'class' ) ; return $ settings ; }
docstring: Reads configuration parameters from the configuration file.
  
  @param string $configFilename
  
  @return array
docstring_tokens: Reads configuration parameters from the configuration file .