original_string: public function clearCache() {
          $files = glob($this->getConfig('cacheDir') . '/*', GLOB_MARK);
          foreach ($files as $file) {
              unlink($file);
          }
      }
code: public function clearCache() {
          $files = glob($this->getConfig('cacheDir') . '/*', GLOB_MARK);
          foreach ($files as $file) {
              unlink($file);
          }
      }
code_tokens: public function clearCache ( ) { $ files = glob ( $ this -> getConfig ( 'cacheDir' ) . '/*' , GLOB_MARK ) ; foreach ( $ files as $ file ) { unlink ( $ file ) ; } }
docstring: delete all cached files
docstring_tokens: delete all cached files