首先,在配置文件中有如下配置:
# /data/config.php $config['setting']['cache'] = 'mysql';
然后,在框架入口中会加载缓存相关文件:
# /framework/bootstrap.inc.php if (!in_array($_W['config']['setting']['cache'], array('mysql', 'memcache', 'redis'))) { $_W['config']['setting']['cache'] = 'mysql'; } load()->func('cache');
然后,在缓存方法中会加载实际使用的缓存类:
# /framework/function/cache.func.php load()->func('cache.' . cache_type()); function cache_type() { $cache_type = strtolower($_W['config']['setting']['cache']); // 实例化 Memcache 或 Redis // 连接 cache 对应的服务器 // ... return $cache_type; }
最后,在缓存类中提供了读写缓存的方法:
# /framework/function/cache.xxx.func.php function cache_read($key) {} function cache_write($key, $data, $expire = 0) {} function cache_delete($key) {} function cache_clean($prefix = '') {}
来源:https://www.cnblogs.com/danhuang/p/12599969.html