Check if a key exists in Memcache

Question

How do I check in PHP if a value is stored in Memcache without fetching it? I don\'t like fetching it because the values I have set are all 1MB in size and after I fetch it, I h

Answer 1

(a little late to the discussion, but) actually you can access all the keys/values stored in the memcache, per:

$allSlabs = $memcache->getExtendedStats('slabs');
$items = $memcache->getExtendedStats('items');

foreach ($allSlabs as $server => $slabs)
   foreach ($slabs as $slabId => $slabMeta)
       foreach ($memcache->getExtendedStats('cachedump', (int) $slabId) as $entries)
           if (!empty($entries))
               foreach ($entries as $key => $entry)