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Php versions – PHP memcached addserver don't return False when server is down

PHP version: 7.2.6

I have a memcached server running on 127.0.0.1:11211, but not 127.0.0.22:11212.

$memcached = new Memcached;
if( !$memcached->addServer('127.0.0.22', 11212) )
    die( 'memcached server error' );
else
    echo 'OK';

The actual output is "OK", why is it not ‘memcached server error’? How to determine whether the memcached server is connected?

Expected result:

memcached server error

Actual result:

OK
Tags:

2

Answers


  1. 0

    The memcache client will not make a connection to a server unless you’re reading/writing to it. addServer returning true just means that the server is added to the pool, but it doesn’t imply that a connection can be made.

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  2. 0

    You can test

    if ($memcached->getCacheInfo()===null) {
// Memcached Init failed
}
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