deleteValue() protected method Deletes a value with the

addValue() protected method Stores a value identified

$cachePath public property The directory to store cache files

$gcProbability public property The probability (parts per million)

getValue() protected method Retrieves a value from cache

getCacheFile() protected method Returns the cache file

$cacheFileSuffix public property Cache file suffix. Defaults to

gcRecursive() protected method Recursively removing expired

exists() public method Checks whether a specified key

$dirMode public property The permission to be set for newly created