original_string: public function clean($mode = 'all', $tags = array())
      {
          if (!$this->_options['caching']) {
              return true;
          }
          if (!in_array($mode, array(Zend_Cache::CLEANING_MODE_ALL,
                                     Zend_Cache::CLEANING_MODE_OLD,
                                     Zend_Cache::CLEANING_MODE_MATCHING_TAG,
                                     Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG,
                                     Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG))) {
              Zend_Cache::throwException('Invalid cleaning mode');
          }
          self::_validateTagsArray($tags);
  
          return $this->_backend->clean($mode, $tags);
      }
code: public function clean($mode = 'all', $tags = array())
      {
          if (!$this->_options['caching']) {
              return true;
          }
          if (!in_array($mode, array(Zend_Cache::CLEANING_MODE_ALL,
                                     Zend_Cache::CLEANING_MODE_OLD,
                                     Zend_Cache::CLEANING_MODE_MATCHING_TAG,
                                     Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG,
                                     Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG))) {
              Zend_Cache::throwException('Invalid cleaning mode');
          }
          self::_validateTagsArray($tags);
  
          return $this->_backend->clean($mode, $tags);
      }
code_tokens: public function clean ( $ mode = 'all' , $ tags = array ( ) ) { if ( ! $ this -> _options [ 'caching' ] ) { return true ; } if ( ! in_array ( $ mode , array ( Zend_Cache :: CLEANING_MODE_ALL , Zend_Cache :: CLEANING_MODE_OLD , Zend_Cache :: CLEANING_MODE_MATCHING_TAG , Zend_Cache :: CLEANING_MODE_NOT_MATCHING_TAG , Zend_Cache :: CLEANING_MODE_MATCHING_ANY_TAG ) ) ) { Zend_Cache :: throwException ( 'Invalid cleaning mode' ) ; } self :: _validateTagsArray ( $ tags ) ; return $ this -> _backend -> clean ( $ mode , $ tags ) ; }
docstring: Clean cache entries
  
  Available modes are :
  'all' (default)  => remove all cache entries ($tags is not used)
  'old'            => remove too old cache entries ($tags is not used)
  'matchingTag'    => remove cache entries matching all given tags
  ($tags can be an array of strings or a single string)
  'notMatchingTag' => remove cache entries not matching one of the given tags
  ($tags can be an array of strings or a single string)
  'matchingAnyTag' => remove cache entries matching any given tags
  ($tags can be an array of strings or a single string)
  
  @param  string       $mode
  @param  array|string $tags
  @throws Zend_Cache_Exception
  @return boolean True if ok
docstring_tokens: Clean cache entries