To remove or invalidate in particular cache id, you can use the
remove() method :
<?php
$cache->remove('idToRemove');
To remove or invalidate several cache ids in one operation, you can use the
clean() method. For example to remove all cache records :
<?php
// clean all records
$cache->clean(Zend_Cache::CLEANING_MODE_ALL);
// clean only outdated
$cache->clean(Zend_Cache::CLEANING_MODE_OLD);
If you want to remove cache entries matching the tags 'tagA' and 'tagC':
<?php
$cache->clean(
Zend_Cache::CLEANING_MODE_MATCHING_TAG,
array('tagA', 'tagC')
);
If you want to remove cache entries not matching the tags 'tagA' or 'tagC':
<?php
$cache->clean(
Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG,
array('tagA', 'tagC')
);
If you want to remove cache entries matching the tags 'tagA' or 'tagC':
<?php
$cache->clean(
Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG,
array('tagA', 'tagC')
);
Available cleaning modes are: CLEANING_MODE_ALL,
CLEANING_MODE_OLD, CLEANING_MODE_MATCHING_TAG,
CLEANING_MODE_NOT_MATCHING_TAG and
CLEANING_MODE_MATCHING_ANY_TAG. The latter are, as their names
suggest, combined with an array of tags in cleaning operations.