public function getCacheDir()
	{
		if ($this->cacheDir === null) {
			$this->setCacheDir(dirname(__FILE__).DIRECTORY_SEPARATOR.'cache'.DIRECTORY_SEPARATOR);
		}

		return $this->cacheDir;
	}
public function getCacheDir()
	{
		if ($this->cacheDir === null) {
			$this->setCacheDir(dirname(__FILE__).DIRECTORY_SEPARATOR.'cache'.DIRECTORY_SEPARATOR);
		}

		return $this->cacheDir;
	}
public function getCacheDir ( ) { if ( $ this -> cacheDir === null ) { $ this -> setCacheDir ( dirname ( __FILE__ ) . DIRECTORY_SEPARATOR . 'cache' . DIRECTORY_SEPARATOR ) ; } return $ this -> cacheDir ; }
returns the cache directory with a trailing DIRECTORY_SEPARATOR

@return string
returns the cache directory with a trailing DIRECTORY_SEPARATOR