Thumbnails and File Cache Handling1 user found helpful
My custom block creates a lot of thumbnails by the image helper function "getThumbnail()". This function creates new thumbnail images inside the files/cache folder. This is fine, but I don't know how to delete this files at some point.
Does Concrete5 this job for me or should I take care to empty the file cache by my self?
If you are using the default file caching of concrete5 (instead of something like APC, xcache, etc), you'll see a bunch of zend_cache files in the /files/cache folder. Clearing the cache will blow those away, but not touch the images.
There currently isn't a feature in dashboard that clears out those images. You'll need to manually empty that folder - the system will just recreate the files it can't find as needed.