外掛說明
讓你在網站內容發佈前，提供特殊連結給需要的人，知道該連結的人便能預覽該項尚未發佈的文章或其他文章類型的內容。
你是否曾經在內容尚未發佈前，想辦法讓沒有網站權限的使用者先行預覽內容，然後在他的協助下才能完成內容撰寫？這個外掛能產生一個具有時限性、能夠預覽內容的網址。
之前這個外掛由 Jonathan Dingman 發想，並由 Matt Martz 開發維護，同時也感謝 Hans Dinkelberg 所提供的照片。
使用方式
- 在內容編輯頁的 [發佈] 功能區中，核取 [啟用公開預覽] 便能啟用這項功能。
- 功能啟用後，內容預覽網址便會出現於設定下方，複製這個網址並分享給有需要的人。
- 取消核取 [啟用公開預覽] 便能在該篇內容中停用這項功能。
螢幕擷圖
在區塊編輯器中的外掛設定 
在傳統編輯器中的外掛設定
安裝方式
請注意，這個外掛沒有設定頁面。
透過 WordPress 自動安裝：
- 前往 WordPress 管理後台的 [安裝外掛] 頁面。
- 搜尋「Public Post Preview」。
- 點擊 [立即安裝] 並啟用這個外掛。
透過 FTP 手動安裝：
- 上傳解壓縮後的
public-post-preview目錄及目錄中的檔案至網站主機的/wp-content/plugins/目錄中。 - 在 WordPress 管理後台的 [外掛] 頁面中啟用這個外掛。
透過 WordPress 上傳外掛，而不是透過 FTP 上傳：
- 在本頁右上方點擊 [下載]，然後在 WordPress 管理後台的 [安裝外掛] 頁面中上傳已下載至本機的 ZIP 檔案並完成啟用。
常見問題集
- 找不到預覽連結的設定，這項設定位於何處？
-
這項設定僅出現於尚未發佈的內容，以及將 [狀態] 變更為 [草稿] 的內容。
- 為什麼在過了一段時間後，透過預覽連結檢視內容會顯示 [這條連結已過期失效！]？
-
這個外掛所產生的內容預覽網址有其時限，網址使用時限預設為 48 小時。48 小時過後，預覽連結便會過期，內容作者必須在內容編輯頁面中複製外掛所產生的新網址，並分享給有這項需要的使用者。
- 預覽連結預設 48 小時的使用期限對某些人來說不太夠，是否有辦法變更這項預設設定？
-
當然可以，使用
ppp_nonce_life篩選器便可設定連結有效期限。以下範例程式碼能將預覽期限延長至 5 天：add_filter( 'ppp_nonce_life', 'my_nonce_life' ); function my_nonce_life() { return 60 * 60 * 24 * 5; // 5 days }或是安裝並啟用 Public Post Preview Configurator 外掛，也能變更這項設定。
使用者評論
Works well and developers friendly
Does its job and is tunable by hooks. Moreovere, since the main class is made by static methods I had the opportunity of deregister hooks for my needs.
Not Working
Please resolve this issue. This plugin is not working with Classic Editor (https://wordpress.org/plugins/classic-editor/) in wordpress 5.0.3 Version.
Works Well!
Have used this several times to show clients a preview of updates. It has always worked well for us! Thanks for a nice plugin!
Perfect For Content Team
Have a small team of authors? Writing influencer content for a company? This plugin comes in handy all the time.
Very useful
Works like a charm, thanks!
Perfect
Simply installed it and it works.
參與者及開發者
變更記錄
2.8.0 (2018-11-27):
- Add support for WordPress 5.0 and the new block editor.
2.7.0 (2018-09-14):
- Initial support for Gutenberg.
- Block robots for public post previews. Props @westonruter.
2.6.0 (2017-04-27):
- Make
DS_Public_Post_Preview::get_preview_link()public. Props @rcstr. - Send no-cache headers for public post previews.
2.5.0 (2016-04-05):
- Auto select preview link on focus. Props @JeroenSormani.
- Remove preview status from posts which are trashed or after scheduled posts are published.
- Add support for paged posts.
2.4.1 (2015-10-13):
- Update text domain to support language packs. Translations are now managed via https://translate.wordpress.org/projects/wp-plugins/public-post-preview.
2.4 (2014-08-21):
- Supports EditFlow and custom statuses
- Disables comments and pings during public post preview
- Adds Public Preview to the list of display states used in the Posts list table
- Prevents flickering of link box on Post edit while loading
2.3 (2013-11-18):
- Introduces a filter
ppp_preview_link. With the filter you can adjust the preview link. - If a post has gone live, redirect to it’s proper permalink.
- Adds the query var
_pppto WordPress SEO by Yoast whitelist.
2.2 (2013-03-15):
- Based on feedback I have removed the extra metabox and added the preview link to the main Publish metabox.
- Only show the checkbox if the post status/post type is good.
- Requires WordPress 3.5.
2.1.1 (2012-09-19):
- Sorry for the new update. Through a change in 2.1 a filter was applied to each query. The misplaced “The link has been expired!” message is now gone. Props Aki Björklund and Jonathan Channon.
2.1 (2012-09-16):
- Introduces a filter
ppp_nonce_life. With the filter you can adjust the expiration of a link. By default a link has a lifetime of 48 hours. - In some situations (still not sure when) the preview link is rewritten as a permalink which results in an error. The plugin now works in this situations too.
2.0.1 (2012-07-25):
- Makes the preview link copyable again
2.0 (2012-07-23):
- Support for all public post types
- Saves public preview status via an AJAX request
- I18n
- Requires at least WordPress 3.3
1.3 (2009-06-30):
- Hook in earlier in the post selection process to fix PHP notices
- Add uninstall functionality to remove options from the options table
1.2 (2009-03-30):
- Fix preview URL for scheduled posts on sites with a permalink other than default activated.
1.1 (2009-03-11):
- Don’t limit public previews to posts in draft or pending status. Just exclude posts in publish status.
1.0 (2009-02-20):
- Initial Public Release