Scott Reilly

This plugin provides a powerful widget, shortcode (with shortcode builder tool), and template tags for easily retrieving and displaying custom field values for posts or pages.
The power of custom fields gives this plugin the potential to be dozens of plugins all rolled into one.
This plugin allows you to harness the power of custom fields/meta data. Use the “Get Custom Field” widget, the <code>[custom_field]</code> shortcode (which has a post editor sidebar widget to help you build the shortcode), or one of six template tags to retrieve and display custom fields. Find a custom field for the current post, a specified post, a recent post, or randomly. And for the custom field values found by the plugin, you may optionally specify text or HTML to appear before and after the results. If nothing is found, then nothing is display (unless you define text to appear when no results are found). If multiple results are found, only the first will be displayed unless you specify a string to be used to join the results together (such as “,”), in which case all will be returned. Visit the Examples section to see how this plugin can be cast in dozens of different ways.
There are six template tags provided by this plugin. Here they are, with an explanation of when they are appropriate for use:
<ul>
<li><code>c2c_get_custom()</code> : Use this inside “the loop” to retrieve a custom field value for a post</li>
<li><code>c2c_get_current_custom()</code> : This is only available on the permalink post template (single.php) and page template (page.php). Can be used inside or outside “the loop”. Useful for using custom field to define text you want to include on a post or page’s header, footer, or sidebar.</li>
<li><code>c2c_get_post_custom()</code> : Useful when you know the ID of the post whose custom field value you want.</li>
<li><code>c2c_get_random_custom()</code> : Retrieve the value of a random instance of the specified custom field key, as long as the field is associated with a published posted, non-passworded post (you can modify a setting in the plugin file to search passworded posts as well).</li>
<li><code>c2c_get_random_post_custom()</code> : Retrieves the value of random custom field(s) from a post when you know the ID of the post you’re interested in.</li>
<li><code>c2c_get_recent_custom()</code> : Retrieves the most recent (according to the associated post’s publish date) value of the specified custom field.</li>
</ul>
You can filter the custom field values that the plugin would display. Add filters for ‘<code>the_meta</code>‘ to filter custom field data (see the end of the code file for commented out samples you may wish to include). You can also add per-meta filters by hooking ‘<code>the_meta_$sanitized_field</code>‘. <code>$sanitized_field</code> is a clean version of the value of <code>$field</code> where everything but alphanumeric and underscore characters have been removed. So to filter the value of the “Related Posts” custom field, you would need to add a filter for ‘<code>the_meta_RelatedPosts</code>‘.
Links: <a href="https://coffee2code.com/wp-plugins/get-custom-field-values/" rel="nofollow ugc">Plugin Homepage</a> | <a href="https://wordpress.org/plugins/get-custom-field-values/" rel="ugc">Plugin Directory Page</a> | <a href="https://github.com/coffee2code/get-custom-field-values/" rel="nofollow ugc">GitHub</a> | <a href="https://coffee2code.com" rel="nofollow ugc">Author Homepage</a>
<h3>Developer Documentation</h3>
Developer documentation can be found in <a href="https://github.com/coffee2code/get-custom-field-values/blob/master/DEVELOPER-DOCS.md" rel="nofollow ugc">DEVELOPER-DOCS.md</a>. That documentation covers the numerous template tags, hooks, and shortcode provided by the plugin.
As an overview, these are the template tags provided the plugin:
<ul>
<li><code>c2c_get_custom()</code> : Template tag for use inside “the loop” and applies to the currently listed post.</li>
<li><code>c2c_get_current_custom()</code> : Template tag for use on permalink (aka single) page templates for posts and pages.</li>
<li><code>c2c_get_post_custom()</code> : Template tag for use when you know the ID of the post you’re interested in.</li>
<li><code>c2c_get_random_custom()</code> : Template tag for use to retrieve a random custom field value.</li>
<li><code>c2c_get_random_post_custom()</code> : Template tag for use to retrieve random custom field value(s) from a post when you know the ID of the post you’re interested in.</li>
<li><code>c2c_get_recent_custom()</code> : Template tag for use outside “the loop” and applies for custom fields regardless of post.</li>
</ul>
These are the hooks provided by the plugin:
<ul>
<li><code>c2c_get_custom_field_values_shortcode</code> : Filter to customize the name of the plugin’s shortcode.</li>
<li><code>c2c_get_custom_field_values_post_types</code> : Filter to customize the post types that should support the shortcode builder metabox.</li>
<li><code>get_custom_field_values/can_author_use_shortcodes</code> : Filter to customize if post author can make use of the ‘custom_field’ shortcode.</li>
<li><code>get_custom_field_values/show_metabox</code> : Filter to customize if the shortcode builder metabox is shown.</li>
</ul>
The shortcode provided is <code>[custom-field]</code>, which has a number of attributes to customize its behavior and output.

Get Custom Field Values

Use widgets, shortcodes, and/or template tags to easily retrieve and display custom field values for posts or pages.

Alex Prokopenko / JustCoded

Just Custom Fields adds ability to extend your Posts, Pages (and other custom post types) and Taxonomies with additional fields. After installation, you will see a simple settings page, which is self-explanatory to use. 
We use the standard WordPress PostMeta API and TaxonomyMeta API to save fields data, so you can use standard WordPress functions in your themes/plugins to get data.
IMPORTANT We do not recommend update plugins on your existing sites from version 2.* to version 3.0+. 
JCF v3.0+ is not compatible with versions 2.*, so some field settings can be lost (and as a result – wrong values on post edit pages).
Plugin supports such field types:
<ul>
<li>Input text</li>
<li>Select Box</li>
<li>Multiple Select Box</li>
<li>Checkbox (single and multiple)</li>
<li>Textarea (you can use WordPress editor too)</li>
<li>Datepicker</li>
<li>Simple Media (files and images upload)</li>
<li>Table</li>
<li>Fields Collection (repeatable fields groups)</li>
<li>Related Content (to set a relation to another Post/Page or Custom Post Type)</li>
</ul>
You can read full documentation on our site: http://justcustomfields.com.
For quick demo you can watch our presentation video: 
https://www.youtube.com/watch?v=7KJeH2d_v48
Starting from v2.0 we have different options to save plugin configuration:
<ul>
<li>Ability to set Fields Settings global if you have MultiSite. So you can set them once, without copying all settings to every new site.</li>
<li>Ability to save Fields Settings to a file system (inside theme or wp-content folder). We expect this option will be popular among the developers. It will be much easier to move your fields’ settings between site versions (dev/production).</li>
</ul>
Starting from v2.2:
<ul>
<li>Simple Media field is now a single file only (before it was multiple). It uses new media upload box from WordPress and saves post thumbnail ID (before it was just a file url). So now you can use the get_the_post_thumbnail() function to work with attachments.</li>
<li>All fields now have “Shortcodes” and hints how to use them inside the templates for non-professional developers.</li>
</ul>
For easy migrations between different sites, we have Export/Import options.
FEEL FREE TO CONTACT ME IF YOU FIND ANY BUGS/ISSUES!
ISSUES TRACKER 
Plugin code is open source and placed in the GitHub public repository. I listed known bugs and future features there. You can post new bugs or feature requests for me there. 
https://github.com/aprokopenko/justcustomfields/issues

Just Custom Fields

Turn WordPress into more powerful CMS by adding advanced and easy to use custom fields

Get Custom Field Values vs Just Custom Fields