Description:
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In an application I'm in charge of, some booleans are cached, The only way to know whether false returned is an actual hit is to check whether the flag value was changed.

It works perfectly on a vagrant debian 7 but not in native OSX installation.

memcache

memcache support => enabled
Active persistent connections => 0
Version => 2.2.7
Revision => $Revision: 327750 $

Directive => Local Value => Master Value
memcache.allow_failover => 1 => 1
memcache.chunk_size => 8192 => 8192
memcache.default_port => 11211 => 11211
memcache.default_timeout_ms => 1000 => 1000
memcache.hash_function => crc32 => crc32
memcache.hash_strategy => standard => standard
memcache.max_failover_attempts => 20 => 20


Test script:
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$memcache = new Memcache();
$memcache->connect('localhost', 11211);
$memcache->flush();
$flag = null; var_dump($memcache->get('foo', $flag), $flag);


Expected result:
----------------
bool(false)
NULL

Actual result:
--------------
bool(false)
int(0)