Contributors: Brandon Buster
Plugin Name: Query From Content Shortcode
Tags: WP_Query, query, shortcode, related posts, custom query
Author: Brandon Buster
Requires at least: 3.0
Stable: 0.1


Setup:

No additional setup or configuration is needed to use Query From Content. Just activate the plugin and use the QFC shortcode inside your posts and pages.




Usage:

QFC is a shortcode plugin that allows you to target exactly the posts you’re looking for and list them in your content. Further, you can specify your own list header,
include your current CSS styles to format the search results, and even specify whether or not you want your results to display their thumbnails and excerpts.

Basic format of the QFC shortcode should follow the example below:

[qfc]A Basic Header[/qfc]

The above example defaults to showing your five latest blog posts, no styling, no excerpt, no featured image. To customize your results, we can tell QFC to add 
some CSS and the images and excerpts we’ve been talking about. That shortcode should be placed inside your post content like so:

[qfc class=”my-css-class” id=”my-css-id” image=”yes” excerpt=”yes”]Some Bells & Whistles[/qfc]

Further, you can format your QFC search results with more than just one CSS class or ID: 

[qfc class=”my-css-class, another-css-class” id=”my-css-id, another-css-id”]We Like CSS![/qfc]

Query From Content can list more than just your latest blog posts. With basic use, you can specify things like tags, categories, authors and custom post types.

Here’s another quick example. This one specifies a category, a tag and an author:

[qfc category_name=”Italian-recipes” tag=”lasagna” author_name=”luigi”]Great Italian Recipes![/qfc]

QFC reads the parameters above and feeds them to the WP_Query class. If you are familiar with the WP_Query class, you may’ve recognized the parameters used in the 
above QFC code match exactly the parameters used in WP_Query. All your QFC search parameters must match exactly with the WP_Query parameters. 



For information on advanced usage of Query From Content, visit the Wordpress codex page for WP_Query: https://codex.wordpress.org/Class_Reference/WP_Query