Retrieves information about file cache content and its usage.
Controls whether the returned array will contain information about individual cache entries along with the file cache summary.
Array of meta data about file cache or false on failure
The array returned by this function contains the following elements:
total_cache_uptime - total time in seconds that the file cache has been active
total_file_count - total number of files that are currently in the file cache
total_hit_count - number of times the files have been served from the file cache
total_miss_count - number of times the files have not been found in the file cache
file_entries - an array that contains the information about all the cached files:
file_name - absolute file name of the cached file
add_time - time in seconds since the file has been added to the file cache
use_time - time in seconds since the file has been accessed in the file cache
last_check - time in seconds since the file has been checked for modifications
hit_count - number of times the file has been served from the cache
file_size - size of the cached file in bytes