title: php memcached error
body: <p>Every time I try to use the add() function for memcached, I get the following error:</p>
  
  <pre><code>A PHP Error was encountered
  
  Severity: Warning
  
  Message: MemcachePool::add(): The lowest two bytes of the flags array is reserved for pecl/memcache internal use
  
  Filename: libraries/memcached_library.php
  
  Line Number: 92
  </code></pre>
  
  <p>What could be wrong? I'm using this library for codeigniter: <a href="http://github.com/trs21219/memcached-library" rel="nofollow noreferrer">http://github.com/trs21219/memcached-library</a></p>