资 源 简 介
Introduction
The purpose is to invalidate a collection of keys at once - inspired by the memcached-tag project. I was looking for something simpler, and more compatible so I wrote my own.
Features
Each key can have multiple flags
Each flag and key holds a version number, flag has newer version than key - cache miss
Doesn"t delete all keys related to flag, only invalidates
Only tries to initiate memcache connection once - cache miss returned at once on later requests
Example usage
```
require_once "cache.class.php";
$cache = new cache(array("127.0.0.1"));
$key = "test";
$value = rand(3,123);
$flags = array("page1","pic1");
$secondsincache = 5;
echo "Value to store: $value ";
if ($cache->set($key,$value,$secondsincache,$flags)) echo "Cache set successfully!";
echo "Value stored in memcache: ".$cache->
