protected function _include( $file )
	{
		if( !isset( $this->_includeCache[$file] ) ) {
			$this->_includeCache[$file] = include $file;
		}

		return $this->_includeCache[$file];
	}
protected function _include( $file )
	{
		if( !isset( $this->_includeCache[$file] ) ) {
			$this->_includeCache[$file] = include $file;
		}

		return $this->_includeCache[$file];
	}
protected function _include ( $ file ) { if ( ! isset ( $ this -> _includeCache [ $ file ] ) ) { $ this -> _includeCache [ $ file ] = include $ file ; } return $ this -> _includeCache [ $ file ] ; }
Includes config files using a simple caching.

@param string $file Path and file name of a config file
@return array Value of the requested config file
Includes config files using a simple caching .