Delete all cache by including a file.
Just give the name of cached file that you used to store it and include a file to unlink desired cache file.
$filename ="lazy-fox"; include("delete-single.php");
Above code will delete the specified cache file (in this case, lazy-fox). lazy-fox was the name we assigned to a section to create its cache. So we will delete that by using the same name of it.
Here is an example to delete single part of cache. Let's delete cache_lazy-fox cache file.Delete Lazy Fox Cache