Title: APC Object Cache Backend Author: Mark Jaquith Published: 2010 年 8 月 4 日 Last modified: 2020 年 5 月 4 日 --- 搜索插件 **该插件尚未通过WordPress的最新3个主要版本进行测试**。 当与较新版本的WordPress一起 使用时，可能不再受到维护或支持，并且可能会存在兼容性问题。 ![](https://s.w.org/plugins/geopattern-icon/apc.svg) # APC Object Cache Backend 作者：[Mark Jaquith](https://profiles.wordpress.org/markjaquith/) [下载](https://downloads.wordpress.org/plugin/apc.2.0.7.zip) * [详情](https://cn.wordpress.org/plugins/apc/#description) * [评价](https://cn.wordpress.org/plugins/apc/#reviews) * [安装](https://cn.wordpress.org/plugins/apc/#installation) * [开发进展](https://cn.wordpress.org/plugins/apc/#developers) [支持](https://wordpress.org/support/plugin/apc/) ## 描述 APC Object Cache provides a persistent memory-based backend for the WordPress object cache. APC must be available on your PHP install. An object cache is a place for WordPress and WordPress extensions to store the results of complex operations. On subsequent loads, this data can be fetched from the cache, which will be must faster than dynamically generating it on every page load. The APC Object Cache backend is also compatible with [Batcache](https://wordpress.org/extend/plugins/batcache/), the powerful full page caching engine that runs on WordPress.com Be sure to read the installation instructions, as this is **not** a traditional plugin, and needs to be installed in a specific location. ## 安装 1. Verify that you have PHP 5.2.4+ and a compatible APC version installed. 2. Copy `object-cache.php` to your WordPress content directory (`wp-content/` by default). 3. Done! ## 常见问题 Does this work as a backend for Batcache? Yes! APC 3.1.1+ supports incrementers and handles its own cleanup of expired objects, so it works just fine for Batcache. Lower versions of APC will work, but the hits trigger will be disabled. Does this support versions of WordPress earlier than 3.3? Maybe, but I’m not going to support them, and you shouldn’t still be running them! I share `wp-config.php` among multiple WordPress installs. How can I guarantee key uniqueness? Define `WP_APC_KEY_SALT` to something that is unique for each install (like an md5 of the MySQL host, database, and table prefix). ## 评价 ![](https://secure.gravatar.com/avatar/85f1e397187c7681514f0f4b99c8aa6e022b062b24575cbdc10652e02d82caa2? s=60&d=retro&r=g) ### 󠀁[Very good](https://wordpress.org/support/topic/very-good-2530/)󠁿 [Grzegorz.Janoszka](https://profiles.wordpress.org/grzegorzjanoszka/) 2017 年 9 月 7 日 It reduces the number of sql queries by about half and thus reduces the server load. Highly recommended if you have the correct PHP APC modules. ![](https://secure.gravatar.com/avatar/f3fbec49f0e9d50e5ea6258a9f7c79253ae512019efa10d7565b5737594f3376? s=60&d=retro&r=g) ### 󠀁[greatly speed up WordPress](https://wordpress.org/support/topic/greatly-speed-up-wordpress/)󠁿 [Vinyl Roads](https://profiles.wordpress.org/vinyl-roads/) 2016 年 9 月 3 日 Easy to install. Boost website (APC totally eliminates the time of retrieving the file from disk and the time spent compiling). ![](https://secure.gravatar.com/avatar/97bbe4fe76251bd8de789468d4e055a2a38da2615beb64caba53e5aff6c24084? s=60&d=retro&r=g) ### 󠀁[Excelente Five Stars- Extra Performance](https://wordpress.org/support/topic/excelente-five-stars-extra-performance-2/)󠁿 [General Seed](https://profiles.wordpress.org/autocultivo/) 2017 年 2 月 7 日 Works fine, thanks for it Merry Christmas [ 阅读所有14条评价 ](https://wordpress.org/support/plugin/apc/reviews/) ## 贡献者及开发者 「APC Object Cache Backend」是开源软件。 以下人员对此插件做出了贡献。 贡献者 * [ Mark Jaquith ](https://profiles.wordpress.org/markjaquith/) [帮助将「APC Object Cache Backend」翻译成简体中文。](https://translate.wordpress.org/projects/wp-plugins/apc) ### 对开发感兴趣吗? 您可以[浏览代码](https://plugins.trac.wordpress.org/browser/apc/)，查看[SVN仓库](https://plugins.svn.wordpress.org/apc/)， 或通过[RSS](https://plugins.trac.wordpress.org/log/apc/?limit=100&mode=stop_on_copy&format=rss) 订阅[开发日志](https://plugins.trac.wordpress.org/log/apc/)。 ## 更新日志 #### 2.0.7 * Address potential XSS issues #### 2.0.6 * Fixed a PHP notice #### 2.0.5 * Implements `wp_cache_switch_to_blog()` * Degrades to the built-in PHP-memory cache when APC is not available (now plays with WP-CLI) * Clone objects before storing them to the local cache, so changes to them don’t corrupt the cache * Clear the local PHP memory cache when the APC cache is cleared #### 2.0.4 * `die()` when people mistakenly try to activate this as a plugin, and provide a helpful message for where they should move the file #### 2.0.3 * Parity with the Memcache backend, as much as was possible * Object cloning * Requires WP 3.1+ * Fix double-equals vs triple-equals bug with boolean true values #### 2.0.2 * Perform the `md5( ABSPATH )` calculation once per load (props jdub) * Allow users of complex `wp-config.php` setups to define `WP_APC_KEY_SALT` to guarantee key uniqueness (props jdub) * Lose the `preg_replace()` call in `::key()` (props jdub) * Rename the `incr` method to `incr2` and then conditionally add `incr` via class extension (so that Batcache can properly detect incrementor support) * Convert arrays to ArrayObject objects (APC does not cache multi-level arrays or arrays of objects, so this works around that) * Require PHP 5.2+ #### 2.0.1 * Fixed bugs in wp_cache_delete() #### 2.0 * First version in SVN * Updated to support increment/decrement and feature parity with the Memcached backend (except for multiget support) ## 额外信息 * 版本 **2.0.7** * 最后更新：**6 年前** * 活跃安装数量 **10+** * WordPress 版本 ** 3.3 或更高版本 ** * 已测试的最高版本为 **3.5.2** * 语言 * [English (US)](https://wordpress.org/plugins/apc/) * 标签 * [apc](https://cn.wordpress.org/plugins/tags/apc/)[backend](https://cn.wordpress.org/plugins/tags/backend/) [cache](https://cn.wordpress.org/plugins/tags/cache/)[object cache](https://cn.wordpress.org/plugins/tags/object-cache/) [performance](https://cn.wordpress.org/plugins/tags/performance/) * [高级视图](https://cn.wordpress.org/plugins/apc/advanced/) ## 评级 5 星（最高 5 星）。 * [ 14 条 5 星评价 ](https://wordpress.org/support/plugin/apc/reviews/?filter=5) * [ 0 条 4 星评价 ](https://wordpress.org/support/plugin/apc/reviews/?filter=4) * [ 0 条 3 星评价 ](https://wordpress.org/support/plugin/apc/reviews/?filter=3) * [ 0 条 2 星评价 ](https://wordpress.org/support/plugin/apc/reviews/?filter=2) * [ 0 条 1 星评价 ](https://wordpress.org/support/plugin/apc/reviews/?filter=1) [Your review](https://wordpress.org/support/plugin/apc/reviews/#new-post) [查看全部评论](https://wordpress.org/support/plugin/apc/reviews/) ## 贡献者 * [ Mark Jaquith ](https://profiles.wordpress.org/markjaquith/) ## 支持 有话要说吗？是否需要帮助？ [查看支持论坛](https://wordpress.org/support/plugin/apc/) ## 捐助 您愿意支持这个插件的发展吗? 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