Please check eZCache documentation page.
Expire all caches related to the specified cache tag.
Multiple tags can be provided as a comma separated list.
When combined with the "--purge" parameter, the script will clear the caches instead of expiring them.
If you try to use it with multiple caches, the script will simply fail.
- Execute the code bellow and confirm nothing will happen
It's important eZCache documentation page to be updated as well explaining the multiple tags will be only work with eZP 5.3.4 and higher