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.

JS Morisset

<p>The JSM Show Post Metadata plugin displays post (ie. posts, pages, and custom post types) meta keys (aka custom field names) and unserialized values in a metabox at the bottom of the post editing page.</p>
<p>Note that if you’re using WooCommerce HPOS (High-Performance Order Storage), available since WooCommerce v8.2, then your WooCommerce orders are NOT post objects and you should use the <a href="https://wordpress.org/plugins/jsm-show-order-meta/" rel="ugc">JSM Show Order Metadata</a> plugin instead.</p>
<p>There are no plugin settings – simply install and activate the plugin.</p>
<h4>Available Filters for Developers</h4>
<p>Filter the post meta shown in the metabox:</p>
<pre><code>'jsmspm_metabox_table_metadata' ( array $metadata, $post_obj )
</code></pre>
<p>Array of regular expressions to exclude meta keys:</p>
<pre><code>'jsmspm_metabox_table_exclude_keys' ( array $exclude_keys, $post_obj )
</code></pre>
<p>Capability required to show post meta:</p>
<pre><code>'jsmspm_show_metabox_capability' ( 'manage_options', $post_obj )
</code></pre>
<p>Show post meta for a post type (defaults to true):</p>
<pre><code>'jsmspm_show_metabox_post_type' ( true, $post_type )
</code></pre>
<p>Capability required to delete post meta:</p>
<pre><code>'jsmspm_delete_meta_capability' ( 'manage_options', $post_obj )
</code></pre>
<p>Icon for the delete post meta button:</p>
<pre><code>'jsmspm_delete_meta_icon_class' ( 'dashicons dashicons-table-row-delete' )
</code></pre>
<h4>Related Plugins</h4>
<ul>
<li><a href="https://wordpress.org/plugins/jsm-show-comment-meta/" rel="ugc">JSM Show Comment Metadata</a></li>
<li><a href="https://wordpress.org/plugins/jsm-show-order-meta/" rel="ugc">JSM Show Order Metadata for WooCommerce HPOS</a></li>
<li><a href="https://wordpress.org/plugins/jsm-show-post-meta/" rel="ugc">JSM Show Post Metadata</a></li>
<li><a href="https://wordpress.org/plugins/jsm-show-term-meta/" rel="ugc">JSM Show Term Metadata</a></li>
<li><a href="https://wordpress.org/plugins/jsm-show-user-meta/" rel="ugc">JSM Show User Metadata</a></li>
<li><a href="https://wordpress.org/plugins/jsm-show-registered-shortcodes/" rel="ugc">JSM Show Registered Shortcodes</a></li>
</ul>


JSM Show Post Metadata

I've started recently to use this plugin to discover post meta values, I must say it's cleaner than other plugins I've used before.

Thanks for the latest update release 2.0.0, the ability to have post meta updated without having to load the page is pretty awesome.

I use the plugin almost everyday. I recommend it to anyone who wants to see what's in post meta.

Keep it up!

Useful and Very Clean Post Meta Viewer Plugin

It's great for letting me see hidden metadata without having to open up the database.  Plus, it's great for allowing non-technical users to see the information without the risk of sending them to the database.  

Super helpful tool!


I'm definitely not making full use of its potential but, for what I need it, it has proved to be dependable and very useful.



Thank you for sharing your work.


Helpful and dependable

Show post metadata (aka custom fields) in a metabox when editing posts / pages - a great tool for debugging issues with post metadata.

Meta Functions Shortcode vs JSM Show Post Metadata