Thanks for your time.
When I attempt to reference a prior set value within the $_POST variable between page loads (as you would in raw PHP) the data is not set.
I am within the context of the Create Post section of the admin panel clicking Publish.
My goal is to refill the fields a user has already specified so as to save them the trouble of re-entering all such text/images/etc. data.
Thanks again for any insight into this!
Your $_POST is empty because there is a redirect in between.
You are editing at:
When you hit publish or save draft the form sends you to:
As you can see in the HTML source code
After saving the post, WP redirects you to at:
You best bet would be to use $_SESSION in your plugin;