ASP. NET caching equivalent in PHP with Zend Framework

I'm looking for a ASP .NET Caching equivalent for a PHP website app using Zend Framework. I want to be able to store a data structure (Queue) that can be shar开发者_StackOverflow社区ed between users, preserving consistency, without using a database. I don't want the cache to expire as I want the Queue to be always available when a user arrives on the website. Any ideas?

Check out PHP's Memcache, which is a method for interfacing with memcached.