# 缓存部分刷新的需求

## 主标签

\$expire: (optional) One of the following values:

CACHE_PERMANENT: Indicates that the item should never be removed unless explicitly told to using cache_clear_all() with a cache ID.

CACHE_TEMPORARY: Indicates that the item should be removed at the next general cache wipe.

A Unix timestamp: Indicates that the item should be kept at least until the given time, after which it behaves like CACHE_TEMPORARY.

Drupal 版本:

## 猜你喜欢

### 学习

memcache，这个模块，收了！谢谢！