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Latest Version [8.00202205221] Last Updated [May-22-2022]


PHP Manual [Memcache

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PHP Manual || Memcache

(PECL memcache >= 2.0.0)

Memcache::getExtendedStatsGet statistics from all servers in pool


Memcache::getExtendedStats ([ string $type [, int $slabid [, int $limit = 100 ]]] ) : array

Memcache::getExtendedStats() returns a two-dimensional associative array with server statistics. Array keys correspond to host:port of server and values contain the individual server statistics. A failed server will have its corresponding entry set to FALSE. You can also use the memcache_get_extended_stats() function.


This function has been added to Memcache version 2.0.0.



The type of statistics to fetch. Valid values are {reset, malloc, maps, cachedump, slabs, items, sizes}. According to the memcached protocol spec these additional arguments "are subject to change for the convenience of memcache developers".


Used in conjunction with type set to cachedump to identify the slab to dump from. The cachedump command ties up the server and is strictly to be used for debugging purposes.


Used in conjunction with type set to cachedump to limit the number of entries to dump.


The cachedump stat type has been removed from the memcached daemon due to security reasons.

Return Values

Returns a two-dimensional associative array of server statistics or FALSE on failure.


Example #1 Memcache::getExtendedStats() example

= new Memcache;
$stats $memcache_obj->getExtendedStats();

The above example will output:

    [memcache_host:11211] => Array
            [pid] => 3756
            [uptime] => 603011
            [time] => 1133810435
            [version] => 1.1.12
            [rusage_user] => 0.451931
            [rusage_system] => 0.634903
            [curr_items] => 2483
            [total_items] => 3079
            [bytes] => 2718136
            [curr_connections] => 2
            [total_connections] => 807
            [connection_structures] => 13
            [cmd_get] => 9748
            [cmd_set] => 3096
            [get_hits] => 5976
            [get_misses] => 3772
            [bytes_read] => 3448968
            [bytes_written] => 2318883
            [limit_maxbytes] => 33554432

    [failed_host:11211] => false

See Also

PHP Manual || Memcache