Get statistics from all servers in pool

# Memcache::getExtendedStats

# memcache_get_extended_stats

(PECL memcache >= 2.0.0)

Memcache::getExtendedStats -- memcache_get_extended_stats — Get statistics from all servers in pool

### Description

Memcache::getExtendedStats(string `$type` = ?, int `$slabid` = ?, int `$limit` = 100): array
memcache_get_extended_stats(
Memcache `$memcache`,
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`.

> Note: This function has been added to Memcache version 2.0.0.

### Parameters

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

Warning

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.

### Examples

Example #1 Memcache::getExtendedStats() example

`<?php
$memcache_obj = new Memcache;
$memcache_obj->addServer('memcache_host', 11211);
$memcache_obj->addServer('failed_host', 11211);
$stats = $memcache_obj->getExtendedStats();
print_r($stats);
?>`

The above example will output:

    Array
    (
        [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

- Memcache::getVersion() - Return version of the server
- Memcache::getStats() - Get statistics of the server

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