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final class PhutilAPCKeyValueCache
Phorge Technical Documentation ()

Interface to the APC key-value cache. This is a very high-performance cache which is local to the current machine.

Tasks

Key-Value Cache Implementation

  • public function isAvailable()
  • final public function getKey($key, $default) — Get a single key from cache. See @{method:getKeys} to get multiple keys at once.
  • final public function setKey($key, $value, $ttl) — Set a single key in cache. See @{method:setKeys} to set multiple keys at once.
  • final public function deleteKey($key) — Delete a key from the cache. See @{method:deleteKeys} to delete multiple keys at once.
  • public function getKeys($keys, $ttl)
  • public function setKeys($keys, $ttl)
  • public function deleteKeys($keys)
  • public function destroyCache()

Other Methods

  • private static function isAPCu()

Methods

public function isAvailable()

PhutilKeyValueCache

Determine if the cache is available. For example, the APC cache tests if APC is installed. If this method returns false, the cache is not operational and can not be used.

PhutilAPCKeyValueCache
This method is not documented.
Return
boolTrue if the cache can be used.

final public function getKey($key, $default)
Inherited

PhutilKeyValueCache

Get a single key from cache. See getKeys() to get multiple keys at once.

Parameters
string$keyKey to retrieve.
wild$defaultOptional value to return if the key is not found. By default, returns null.
Return
wildCache value (on cache hit) or default value (on cache miss).

final public function setKey($key, $value, $ttl)
Inherited

PhutilKeyValueCache

Set a single key in cache. See setKeys() to set multiple keys at once.

See setKeys() for a description of TTLs.

Parameters
string$keyKey to set.
wild$valueValue to set.
int|null$ttlOptional TTL.
Return
this

final public function deleteKey($key)
Inherited

PhutilKeyValueCache

Delete a key from the cache. See deleteKeys() to delete multiple keys at once.

Parameters
string$keyKey to delete.
Return
this

public function getKeys($keys, $ttl)

PhutilKeyValueCache

Get data from the cache.

PhutilAPCKeyValueCache
This method is not documented.
Parameters
list<string>$keysList of cache keys to retrieve.
Return
dict<string, wild>Dictionary of keys that were found in the cache. Keys not present in the cache are omitted, so you can detect a cache miss.

public function setKeys($keys, $ttl)

PhutilKeyValueCache

Put data into the key-value cache.

With a TTL ("time to live"), the cache will automatically delete the key after a specified number of seconds. By default, there is no expiration policy and data will persist in cache indefinitely.

PhutilAPCKeyValueCache
This method is not documented.
Parameters
dict<string,$keyswild> Map of cache keys to values.
int|null$ttlTTL for cache keys, in seconds.
Return
this

public function deleteKeys($keys)

PhutilKeyValueCache

Delete a list of keys from the cache.

PhutilAPCKeyValueCache
This method is not documented.
Parameters
list<string>$keysList of keys to delete.
Return
this

public function destroyCache()

PhutilKeyValueCache

Completely destroy all data in the cache.

PhutilAPCKeyValueCache
This method is not documented.
Return
this

private static function isAPCu()

This method is not documented.
Return
wild
Defined
src/infrastructure/cache/PhutilAPCKeyValueCache.php:7
Extends
PhutilKeyValueCache