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(PECL memcache >= 2.1.0)
Memcache::getServerStatus — 用于获取一个服务器的在线/离线状态
$host
[, int $port
= 11211
] )Memcache::getServerStatus() 返回一个服务器的在线/离线状态,你也同样可以使用 函数 memcache_get_server_status() 。
Note:
这个函数在memcache2.1.0版本加入。
host
主机监听地址。
port
主机监听端口,默认11211.
返回一个服务器的状态,0表示服务器离线,非0表示在线。
Example #1 Memcache::getServerStatus() 示例
<?php
$memcache = new Memcache ;
$memcache -> addServer ( 'memcache_host' , 11211 );
echo $memcache -> getServerStatus ( 'memcache_host' , 11211 );
$memcache = memcache_connect ( 'memcache_host' , 11211 );
echo memcache_get_server_status ( $memcache , 'memcache_host' , 11211 );
?>
[#1] tom at all dash community dot de [2011-12-06 08:01:51]
Note: the result of the function is cached. The cached is not automatically refreshed.
Call MemCache::getExtendedStats() to force a cache-update.
[#2] geoffrey dot hoffman at gmail dot com [2010-07-21 12:10:29]
Beware... this method does not actually attempt to connect to the server and port you specify! It is not a health check to tell whether memcached is actually running or not!
It merely returns the server status from the pool, which defaults to TRUE when using addServer( ) with only required arguments.
Try it - stop your memcached and run the sample code above - it will output 1.