Title: Appcachify
Author: Robert O'Rourke
Published: <strong>2014 年 7 月 24 日</strong>
Last modified: 2014 年 7 月 24 日

---

搜尋外掛

![](https://ps.w.org/appcachify/assets/banner-772x250.png?rev=954160)

這個外掛**並未在最新的 3 個 WordPress 主要版本上進行測試**。開發者可能不再對這個
外掛進行維護或提供技術支援，並可能會與更新版本的 WordPress 產生使用上的相容性問題。

![](https://s.w.org/plugins/geopattern-icon/appcachify_1d1d1d.svg)

# Appcachify

 由 [Robert O’Rourke](https://profiles.wordpress.org/sanchothefat/) 開發

[下載](https://downloads.wordpress.org/plugin/appcachify.zip)

 * [詳細資料](https://tw.wordpress.org/plugins/appcachify/#description)
 * [使用者評論](https://tw.wordpress.org/plugins/appcachify/#reviews)
 *  [安裝方式](https://tw.wordpress.org/plugins/appcachify/#installation)
 * [開發資訊](https://tw.wordpress.org/plugins/appcachify/#developers)

 [技術支援](https://wordpress.org/support/plugin/appcachify/)

## 外掛說明

The plugin adds an iframe to the footer of your website which points to `example.
com/manifest`.

That URL is an empty page that references the generated manifest file at `example.
com/manifest.appcache`.

The manifest itself is built in the following way:

 1. adds URLs of all queued scripts and styles
 2. searches theme files and folder for any images or other static assets
 3. if a theme has a 307.php template it is used as an offline fallback
 4. a timestamp of the most recently modified file is added to force appcache to refresh

The net result of all this is that your main static files are stored locally on 
your visitors devices. For mobile this greatly helps to improve download and rendering
times.

### Documentation

### Adding items to the manifest

Appcache can do more than store static assets. You could cache entire pages, or 
add fallbacks for when a user is offline.

There are 3 main sections to a manifest:

#### CACHE

The main `CACHE` section is for URLs that should be explicitly cached.

    ```
    <?php
    add_filter( 'appcache_cache', function( $urls ) {
       $urls[] = '/page-available-offline/';
       return $urls;
    } );
    ?>
    ```

#### NETWORK

This section is for specifying URLs that should _never_ be cached.

    ```
    <?php
    add_filter( 'appcache_network', function( $urls ) {
       $urls[] = '*';
       $urls[] = '/online-only-page/';
       return $urls;
    } );
    ?>
    ```

#### FALLBACK

The fallback section allows you to set fallback pages or images if the user is offline.

    ```
    <?php
    add_filter( 'appcache_fallback', function( $patterns ) {
       $patterns[] = 'wp-content/uploads/ wp-content/uploads/offline.jpg';
       return $patterns;
    } );
    ?>
    ```

#### The update header

Appcaches are refetched when the manifest file content changes so we add a few items
as comments at the top of the file.

 1. The current theme (and version if available)
 2. The most recent modified time of any files we find the server path for
 3. The size of all the files that we find a server path for
 4. get_var( “SELECT post_modified FROM $wpdb->posts WHERE post_type = ‘post’ ORDER
    BY post_modified DESC LIMIT 1” );
     return $headers; } ); ?>

### More about appcache

I strongly recommend learning more about what you can do with appcache by reading
the following articles:

 * [HTML5 Rock’s Introduction to Appcache](http://www.html5rocks.com/en/tutorials/appcache/beginner/)
 * [Application cache is a douchebag](http://alistapart.com/article/application-cache-is-a-douchebag)

## 安裝方式

Upload the plugin to your plugins directory and activate it. There’s no configuration
involved or settings screen.

## 使用者評論

![](https://secure.gravatar.com/avatar/610b40327fa27bfb993f09ec4ade9502133feca83ec4b528ca7c17a17a30d023?
s=60&d=retro&r=g)

### 󠀁[this looks bad ass](https://wordpress.org/support/topic/this-looks-bad-ass/)󠁿

 [Jason K. Dove, SEO](https://profiles.wordpress.org/3dseo/) 2017 年 10 月 26 日

Sadly, before my time in the trenches. Just curious, what happened with this?

![](https://secure.gravatar.com/avatar/030258ae90e99d4f669e22b5f0855e0d83bcba827d966107ab9a03b4f3cb1974?
s=60&d=retro&r=g)

### 󠀁[Great caching tool for geeks !](https://wordpress.org/support/topic/great-caching-tool-for-geeks/)󠁿

 [Serhii Shyran](https://profiles.wordpress.org/shyran/) 2016 年 11 月 29 日

My hat down man, this is truly awesome piece of mastery in the world of WordPress
caching… for those who know 😉

 [ 閱讀全部 2 則使用者評論 ](https://wordpress.org/support/plugin/appcachify/reviews/)

## 參與者及開發者

以下人員參與了開源軟體〈Appcachify〉的開發相關工作。

參與者

 *   [ Robert O’Rourke ](https://profiles.wordpress.org/sanchothefat/)

[將〈Appcachify〉外掛本地化為台灣繁體中文版](https://translate.wordpress.org/projects/wp-plugins/appcachify)

### 對開發相關資訊感興趣？

任何人均可[瀏覽程式碼](https://plugins.trac.wordpress.org/browser/appcachify/)、
查看 [SVN 存放庫](https://plugins.svn.wordpress.org/appcachify/)，或透過 [RSS](https://plugins.trac.wordpress.org/log/appcachify/?limit=100&mode=stop_on_copy&format=rss)
訂閱[開發記錄](https://plugins.trac.wordpress.org/log/appcachify/)。

## 變更記錄

#### 1.0

 * Initial commit to wordpress.org

## 中繼資料

 *  版本 **0.1**
 *  最後更新 **12 年前**
 *  啟用安裝數 **10+**
 *  WordPress 版本需求 ** 3.8 或更新版本 **
 *  已測試相容的 WordPress 版本 **3.9.40**
 *  語言
 * [English (US)](https://wordpress.org/plugins/appcachify/)
 * 標籤:
 * [appcache](https://tw.wordpress.org/plugins/tags/appcache/)[caching](https://tw.wordpress.org/plugins/tags/caching/)
   [HTML5](https://tw.wordpress.org/plugins/tags/html5/)[performance](https://tw.wordpress.org/plugins/tags/performance/)
 *  [進階檢視](https://tw.wordpress.org/plugins/appcachify/advanced/)

## 評分

 5 星，滿分為 5 星

 *  [  2 個 5 星使用者評論     ](https://wordpress.org/support/plugin/appcachify/reviews/?filter=5)
 *  [  0 個 4 星使用者評論     ](https://wordpress.org/support/plugin/appcachify/reviews/?filter=4)
 *  [  0 個 3 星使用者評論     ](https://wordpress.org/support/plugin/appcachify/reviews/?filter=3)
 *  [  0 個 2 星使用者評論     ](https://wordpress.org/support/plugin/appcachify/reviews/?filter=2)
 *  [  0 個 1 星使用者評論     ](https://wordpress.org/support/plugin/appcachify/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/appcachify/reviews/#new-post)

[查看全部使用者評論](https://wordpress.org/support/plugin/appcachify/reviews/)

## 參與者

 *   [ Robert O’Rourke ](https://profiles.wordpress.org/sanchothefat/)

## 技術支援

使用者可在技術支援論壇提出意見反應或使用問題。

 [檢視技術支援論壇](https://wordpress.org/support/plugin/appcachify/)