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function get_the_category( $id = false ) {
	$categories = get_the_terms( $id, 'category' );
	if ( ! $categories || is_wp_error( $categories ) )
		$categories = array();

	$categories = array_values( $categories );

	foreach ( array_keys( $categories ) as $key ) {
		_make_cat_compat( $categories[$key] );
	}

	// Filter name is plural because we return alot of categories (possibly more than #13237) not just one
	return apply_filters( 'get_the_categories', $categories );
}

• Function Reference/get the category « WordPress Codex
  Description. Returns an array of objects, one object for each category assigned to the post. This tag may be used outside The Loop by passing a post id as the ...
  codex.wordpress.org
• WordPress › Support » Limit get_the_category output
  Limit get_the_category output (3 posts). shakingpaper. Member Posted 3 years ago #. Hi there,. I am using a bit of code to split my post categories into two ...
  wordpress.org
• Using get_the_category() in theme's functions.php - WordPress
  I am trying to use get_the_category() in my theme's functions.php file. When I print the array as seen below, I get an empty array. This code works just fine in the ...
  wordpress.org
• wordpress - What can I use instead of get_the_category() for custom ...
  Basically I've created a custom post type in WordPress with a custom ... Wordpress describes taxonomies as "Terms". There may be some help in ...
  stackoverflow.com

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