mysqlnd_memcache_get_config Returns information about the plugin configuration &reftitle.description; array mysqlnd_memcache_get_config mixedconnection This function returns an array containing all the mysqlnd_memcache related configuration attached to a MySQL connection. This includes MySQL the Memcache object provided via mysqlnd_memcache_set as well as the table mapping configuration which was automatically collected from the MySQL server. &reftitle.parameters; connection A handle to a MySQL server of the type PDO_MYSQL, mysqli or ext/mysql for which the configuration is to be returned. &reftitle.returnvalues; If the connection is associated with a memcache connection an array will be returned. Otherwise this function will return false. The returned array has these elements: Array Key Description memcached Instance of Memcached associated to this MySQL connection by mysqlnd_memcache_set. You can use this to change settings of the memcache connection or directly querying the server onthis connection. pattern Regular expression used to match an SQL query being sent to the server. Queries matching this pattern will be further analyzed to decide whether the query can be intercepted and sent via the memcache interface or whether the query is sent using the general MySQL protocol to the server. The pattern either is the default pattern, MYSQLND_MEMCACHE_DEFAULT_REGEXP or set via mysqlnd_memcache_set. mappings An associative array with a list of all configured containers as they were discovered by this plugin. The key for these elements is the name of the container in the MySQL configuration. The value is described below. The contents of this field is created by querying the MySQL server during associting a MySQL and a memcache connection using mysqlnd_memcache_set. mapping_query An SQL query used during mysqlnd_memcache_set to identify the available containers and mappings. The result of that query is provided in the mappings element. Array Key Description prefix A prefix used while accessing data via memcache. With the MySQL InnoDB Memcache Deamon plugin this usully begins with @@ and ends with a configurable separator. This prefix is placed in front of the key value while using the memcache protocol. schema_name Name of the schema (database) which contains the table being accessed. table_name Name of the table which contins the data accessible via memcache protocol. id_field_name Name of the database field (column) with the id used as key when accessing the table vi a memcache. Often this is the database field having a primary key. separator A seprator used to split different field values. This is needed as memcache only provides access to a single value while MySQL can map multiple columns to this value. The separator, which can be set in the MySQL Server configuration should not be part ofany value retrieved via memcache as proper mapping can't be guranteed. fields An array with the names of all fields availle forthis mapping. &reftitle.examples; addServer("host", 11211); mysqlnd_memcache_set($mysqli, $memc); var_dump(mysqlnd_memcache_get_config($mysqli)); ?> ]]> &example.outputs; object(Memcached)#2 (0) { } ["pattern"]=> string(125) "/^\s*SELECT\s*(.+?)\s*FROM\s*`?([a-z0-9_]+)`?\s*WHERE\s*`?([a-z0-9_]+)`?\s*=\s*(?(?=["'])["']([^"']*)["']|([0-9e\.]*))\s*$/is" ["mappings"]=> array(1) { ["mymem_test"]=> array(6) { ["prefix"]=> string(13) "@@mymem_test." ["schema_name"]=> string(4) "test" ["table_name"]=> string(10) "mymem_test" ["id_field_name"]=> string(2) "id" ["separator"]=> string(1) "|" ["fields"]=> array(3) { [0]=> string(2) "f1" [1]=> string(2) "f2" [2]=> string(2) "f3" } } } ["mapping_query"]=> string(209) " SELECT c.name, CONCAT('@@', c.name, (SELECT value FROM innodb_memcache.config_options WHERE name = 'table_map_delimiter')) AS key_prefix, c.db_schema, c.db_table, c.key_columns, c.value_columns, (SELECT value FROM innodb_memcache.config_options WHERE name = 'separator') AS sep FROM innodb_memcache.containers c" } ]]> &reftitle.seealso; mysqlnd_memcache_set