Workshopshed

<p>The RSS Feed checker looks through your blogroll for links with rss feeds and then stores the name and url of the latest article.<br />
The Links RSS Enhanced widget then displays the latest links in descending order.<br />
The idea for the widget comes from the blogroll widget on blogger.</p>
<p>Version 2.0 for PHP 8 and above only. Only tested on 6.9.<br />
For earlier versions of PHP use Version 1.1</p>
<h3>Technical section</h3>
<p>The plugin will create an extra table in your wordpress database to store the latest feed updates,<br />
this will be called links_rss with the prefix for your database e.g. wp_links_rss</p>
<p>A Cron (schedule) is created to run every 30 minutes and process links. Note that Cron in WordPress<br />
depends on hits, your WordPress website receives. So playing with this plugin within an offline<br />
environment (MAMP, XAMPP, WAMP etc.) without anyone or anything triggering the scheduling by<br />
sending requests to the WordPress page won’t produce any results if you do not trigger it by<br />
yourself.</p>
<h3>References</h3>
<p>A selection of places I’ve found help for this plugin.</p>
<p>Thanks also to Ozh, Roland Rust and for their explainations and examples</p>
<h4>Admin UI</h4>
<ul>
<li>https://codex.wordpress.org/Function_Reference/add_meta_box</li>
<li>https://codex.wordpress.org/Administration_Menus#Page_Hook_Suffix</li>
<li>http://wpengineer.com/1295/meta-links-for-wordpress-plugins/</li>
<li>http://www.code-styling.de/english/how-to-use-wordpress-metaboxes-at-own-plugins</li>
<li>http://planetozh.com/blog/2008/02/wordpress-snippet-add_meta_box/</li>
<li>http://wptheming.com/2011/08/admin-notices-in-wordpress/</li>
<li>http://www.prelovac.com/vladimir/improving-security-in-wordpress-plugins-using-nonces</li>
</ul>
<h4>Ajax</h4>
<ul>
<li>http://return-true.com/2010/01/using-ajax-in-your-wordpress-theme-admin/</li>
<li>http://amiworks.co.in/talk/simplified-ajax-for-wordpress-plugin-developers-using-jquery/</li>
<li>http://xplus3.net/2008/10/16/jquery-and-ajax-in-wordpress-plugins-administration-pages/</li>
<li>http://www.garyc40.com/2010/03/5-tips-for-using-ajax-in-wordpress/</li>
</ul>
<h4>Database</h4>
<ul>
<li>http://createmy.com.au/connecting-your-plugin-to-the-wordpress-database/</li>
<li>http://webjawns.com/2009/08/the-wordpress-wpdb-class-explained/</li>
</ul>
<h4>Scheduling</h4>
<ul>
<li>http://wpseek.com/source/wp/latest/nav.html?wp-includes/cron.php.html</li>
<li>Ideas on background processing from the broken link checker</li>
</ul>
<h4>Settings</h4>
<ul>
<li>https://codex.wordpress.org/Settings_API – new way to handle options/settings         </li>
<li>http://ottopress.com/2009/wordpress-settings-api-tutorial/</li>
<li>http://planetozh.com/blog/2009/05/handling-plugins-options-in-wordpress-28-with-register_setting/</li>
<li>http://wpengineer.com/2139/adding-settings-to-an-existing-page-using-the-settings-api/</li>
<li>http://blog.gneu.org/2010/09/intro-to-the-wordpress-settings-api/</li>
<li>http://alisothegeek.com/2011/01/wordpress-settings-api-tutorial-1/</li>
</ul>
<h4>RSS Feeds</h4>
<ul>
<li>http://jaewon.mine.nu/jaewon/2010/10/30/how-to-make-your-wordpress-a-rss-reader/</li>
<li>https://codex.wordpress.org/Plugin_API/Filter_Reference/wp_feed_cache_transient_lifetime</li>
<li>http://simplepie.org/</li>
</ul>


RSS Feed Checker

The RSS Feed checker looks through your blogroll for links with rss feeds and captures the details to be shown in a widget.

Forlæns

<p>Forward: Blogroll lets you follow selected blogs from inside WordPress. Add blog URLs or direct RSS feed URLs, validate them from the admin screen, import recent items, and display the newest external posts on any page with a shortcode.</p>
<p>Imported items are stored in a dedicated internal post type, so external posts stay separate from your normal Posts archive.</p>
<h4>Key features</h4>
<ul>
<li>Add blog URLs or direct RSS and Atom feed URLs from the WordPress admin.</li>
<li>Discover feed URLs from site metadata and common feed paths.</li>
<li>Validate feeds before importing.</li>
<li>Choose how many recent posts are imported when a feed is first added.</li>
<li>Check enabled feeds hourly with WP-Cron.</li>
<li>Avoid duplicate imports using source, permalink, GUID, and publish date.</li>
<li>Display imported posts with <code>[forward_blogroll]</code>.</li>
<li>Includes bundled translation files for common languages.</li>
</ul>
<h4>Good for</h4>
<ul>
<li>Personal or team blogrolls.</li>
<li>Curated reading pages.</li>
<li>Publisher networks that want to highlight recent external posts.</li>
</ul>
<h3>Shortcode</h3>
<p>Basic usage:</p>
<pre><code>[forward_blogroll]
</code></pre>
<p>Limit the number of displayed items:</p>
<pre><code>[forward_blogroll posts_per_page="10"]
</code></pre>
<p>The <code>posts_per_page</code> value is capped at 100.</p>
<p>Display items from one configured source:</p>
<pre><code>[forward_blogroll source="source_id"]
</code></pre>
<p>You can copy a source ID from the shortcode options table in the Blogroll admin screen.</p>
<h3>External requests and stored data</h3>
<p>Forward: Blogroll makes HTTP requests only to the blog and feed URLs you configure. It uses those requests to discover RSS or Atom feed URLs, validate feeds, and import new items during scheduled WP-Cron checks.</p>
<p>For each imported item, the plugin stores the item title, source name, source feed URL, original permalink, publish date, duplicate-prevention fingerprints, and image URL when one is available. It does not copy full article content into normal WordPress posts.</p>


Forward: Blogroll

Import selected RSS feeds into a local blogroll and display the newest external posts with a shortcode.

RSS Feed Checker vs Forward: Blogroll