Interface for cache engines that defines methods outside of the PSR16 interface that are used by Cache.
Internally Cache uses this interface when calling engine methods.
add(string $key, mixed $value)
Write data for key into a cache engine if it doesn't exist already.
string $key Identifier for the data.
mixed $value Data to be cached - anything except a resource.
boolTrue if the data was successfully cached, false on failure. Or if the key existed already.
clearGroup(string $group)
Clear all values belonging to the named group.
Each implementation needs to decide whether actually delete the keys or just augment a group generation value to achieve the same result.
string $group name of the group to be cleared
booldecrement(string $key, int $offset)
Decrement a number under the key and return decremented value
string $key Identifier for the data
int $offset optional How much to subtract
int|falseNew incremented value, false otherwise
increment(string $key, int $offset)
Increment a number under the key and return incremented value
string $key Identifier for the data
int $offset optional How much to add
int|falseNew incremented value, false otherwise
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https://api.cakephp.org/4.1/interface-Cake.Cache.CacheEngineInterface.html