Noby

<p>The “Meta Functions Shortcode” Plugin installs the Shortcode ‘meta’. With it you can access the custom fields of your articles by a simple shortcode.</p>
<p>Shortcode Syntax: <code>[meta func="" name="" alt=""]</code></p>
<p>The shortcode has three functions yet:</p>
<ol>
<li>func=”url”<br />
  Displays a link using your custom field in “name” as the link target and “alt” as the caption. If “alt” is empty the link target is used as the caption.</li>
<li>func=”plain”<br />
  Simply displays the custom field in “name” as plain text. If the field is empty it displays the text in “alt”.</li>
<li>func=”img”<br />
  Inserts the image at the url in your custom field “name” into the article. The “alt” argument is used as the images alternative text attribute.</li>
<li>More functions in later versions of the plugin… Or extend the plugin on your own. See Extending the Plugin (under Other Notes) for details.</li>
</ol>
<h4>Example</h4>
<pre><code>[meta func="url" name="download_url" alt="Download here"]
</code></pre>
<p>This little code in your article displays a link using your custom field “download_url” as the link target and “Download here” as the caption. If you leave the “alt” argument empty then it uses the link target as the caption.</p>
<p>The resulting html code is:</p>
<pre><code><a href='{download_url}'>{alt}</a>
</code></pre>
<h3>Extending the Shortcode</h3>
<h4>Method 1: Hardcoded</h4>
<p>You can extend the plugin by adding the PHP function</p>
<pre><code>function meta_functions_shortcode_{func}($meta, $alt="") {
       return "your desired text or generated html content";
}
</code></pre>
<p>by writing your own plugin file with the function in it. Be sure to replace {func} with your desired function name (will result in the parameter “func” in the shortcode). $meta will be the value of the custom field and $alt the “alt” parameter.</p>
<p>The function should return the text by which the shortcode will be replaced. For example the “_plain” function simply returns $meta or $alt if $meta is empty.</p>
<h4>Method 2: In the admin panel</h4>
<p>This method is more convenient. You can add new functions in the admin panel. For this go to the options page called “Meta Functions Shortcode”.<br />
Here you can enter a new function name, specify parameter names and set the output html code with the parameters.</p>
<p>Example:</p>
<ul>
<li>Function Name: link</li>
<li>Function Parameter Names: link_url, link_caption</li>
<li>Function Result Code: <code><a href='{link_url}'>{link_caption}</a></code> </li>
</ul>
<p>If you now enter the shortcode [meta func=”link” link_url=”download_url” link_caption=”download_caption”] then in the article/page<br />
it will be replaced by <code><a href='contents of custom field download_url'><i>contents of custom field download_caption</i></a></code>.</p>


Meta Functions Shortcode

The “Meta Functions Shortcode” Plugin installs the Shortcode ‘meta’. With it you can access the custom fields of your articles by a shortcode.

Philip Newcomer

<p>This plugin makes all custom fields (post meta) visible in the “Custom Fields” meta box on post edit screens.</p>


Show Hidden Post Meta

As a plugin developer, I create hidden post meta all the time and sometimes I need to see it to debug it. This does what it says it does, and well. Its simple and hasn't been updated for a while, but I'm glad it exists!

PS: If you need someone to take this one over, let me know. I'll keep it tested and updated if you're unable to.

Still works on 5.5

Makes hidden post meta visible on post edit screens

Meta Functions Shortcode vs Show Hidden Post Meta