Find post categories or tags when editing a post

I'm trying to figure out how to find a post category or tag when editing a post in wp-admin.

I need this because I w开发者_StackOverflow中文版ant to show some modules in the editor only for a post of a certain category.

Is there a way to accomplish that result?

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You can use the get_the_category() function to get the categories of the current post. From the codex:

global $post;
$categories = get_the_category($post->ID);
var_dump($categories);