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TAGS_UNSUPPORTED_BY_CLEAN_OF_LIBMEMCACHED_BACKEND
= 'Zend_Cache_Backend_Libmemcached::clean() : tags are unsupported by the Libmemcached backend'
Log message

array
$_options= 'array(
'servers' => array(array(
'host' => self::DEFAULT_HOST'
Available options
available options=====> (array) servers : an array of memcached server ; each memcached server is described by an associative array : 'host' => (string) : the name of the memcached server 'port' => (int) : the port of the memcached server 'weight' => (int) : number of buckets to create for this server which in turn control its probability of it being selected. The probability is relative to the total weight of all servers. =====> (array) client : an array of memcached client options ; the memcached client is described by an associative array :
array(
'servers' => array(array(
'host' => self::DEFAULT_HOST
Details
__construct(
array $options
=
array()
)
:
void
Constructor
Name | Type | Description |
---|---|---|
$options | array | associative array of options |
Exception | Description |
---|---|
\Zend_Cache_Exception |

clean(
string $mode
=
Zend_Cache::CLEANING_MODE_ALL, array $tags
=
array()
)
:
boolean
Clean some cache records
Available modes are : 'all' (default) => remove all cache entries ($tags is not used) 'old' => unsupported 'matchingTag' => unsupported 'notMatchingTag' => unsupported 'matchingAnyTag' => unsupported
Name | Type | Description |
---|---|---|
$mode | string | Clean mode |
$tags | array | Array of tags |
Type | Description |
---|---|
boolean | True if no problem |
Exception | Description |
---|---|
\Zend_Cache_Exception |

getCapabilities(
)
:
array
Return an associative array of capabilities (booleans) of the backend
The array must include these keys : - automatic_cleaning (is automating cleaning necessary) - tags (are tags supported) - expired_read (is it possible to read expired cache records (for doNotTestCacheValidity option for example)) - priority does the backend deal with priority when saving - infinite_lifetime (is infinite lifetime can work with this backend) - get_list (is it possible to get the list of cache ids and the complete list of tags)
Type | Description |
---|---|
array | associative of with capabilities |

getFillingPercentage(
)
:
int
Return the filling percentage of the backend storage
Type | Description |
---|---|
int | integer between 0 and 100 |
Exception | Description |
---|---|
\Zend_Cache_Exception |

getIds(
)
:
array
Return an array of stored cache ids
Type | Description |
---|---|
array | array of stored cache ids (string) |

getIdsMatchingAnyTags(
array $tags
=
array()
)
:
array
Return an array of stored cache ids which match any given tags
In case of multiple tags, a logical AND is made between tags
Name | Type | Description |
---|---|---|
$tags | array | array of tags |
Type | Description |
---|---|
array | array of any matching cache ids (string) |

getIdsMatchingTags(
array $tags
=
array()
)
:
array
Return an array of stored cache ids which match given tags
In case of multiple tags, a logical AND is made between tags
Name | Type | Description |
---|---|---|
$tags | array | array of tags |
Type | Description |
---|---|
array | array of matching cache ids (string) |

getIdsNotMatchingTags(
array $tags
=
array()
)
:
array
Return an array of stored cache ids which don't match given tags
In case of multiple tags, a logical OR is made between tags
Name | Type | Description |
---|---|---|
$tags | array | array of tags |
Type | Description |
---|---|
array | array of not matching cache ids (string) |

getMetadatas(
string $id
)
:
array
Return an array of metadatas for the given cache id
The array must include these keys : - expire : the expire timestamp - tags : a string array of tags - mtime : timestamp of last modification time
Name | Type | Description |
---|---|---|
$id | string | cache id |
Type | Description |
---|---|
array | array of metadatas (false if the cache id is not found) |

getTags(
)
:
array
Return an array of stored tags
Type | Description |
---|---|
array | array of stored tags (string) |

isAutomaticCleaningAvailable(
)
:
boolean
Return true if the automatic cleaning is available for the backend
Type | Description |
---|---|
boolean |

load(
string $id, boolean $doNotTestCacheValidity
=
false
)
:
string|false
Test if a cache is available for the given id and (if yes) return it (false else)
Name | Type | Description |
---|---|---|
$id | string | Cache id |
$doNotTestCacheValidity | boolean | If set to true, the cache validity won't be tested |
Type | Description |
---|---|
string|false | cached datas |

remove(
string $id
)
:
boolean
Remove a cache record
Name | Type | Description |
---|---|---|
$id | string | Cache id |
Type | Description |
---|---|
boolean | True if no problem |

save(
string $data, string $id, array $tags
=
array(), int $specificLifetime
=
false
)
:
boolean
Save some string datas into a cache record
Note : $data is always "string" (serialization is done by the core not by the backend)
Name | Type | Description |
---|---|---|
$data | string | Datas to cache |
$id | string | Cache id |
$tags | array | Array of strings, the cache record will be tagged by each string entry |
$specificLifetime | int | If != false, set a specific lifetime for this cache record (null => infinite lifetime) |
Type | Description |
---|---|
boolean | True if no problem |

setDirectives(
array $directives
)
:
void
Set the frontend directives
Name | Type | Description |
---|---|---|
$directives | array | Assoc of directives |
Exception | Description |
---|---|
\Zend_Cache_Exception |

test(
string $id
)
:
int|false
Test if a cache is available or not (for the given id)
Name | Type | Description |
---|---|---|
$id | string | Cache id |
Type | Description |
---|---|
int|false | (a cache is not available) or "last modified" timestamp (int) of the available cache record |