Creating a WordPress Query UI Plugin - Part 1
How to create a new WordPress plugin that provides a simple administrator UI for creating a custom WP_Query and HTML template.
Contains the following features:
Admin UI for creating queries and templates
Shortcode for displaying a custom query
Template / token system that allows the use of some WordPress template tags
Additional References:
https://codex.wordpress.org/Function_...
https://codex.wordpress.org/Class_Ref...
https://codex.wordpress.org/Function_...
http://php.net/manual/en/function.pre...
http://php.net/manual/en/book.outcont...