How to get parent category ID in single page template

Question

How can I get parent category ID in single page template, outside of loop?

$category = get_the_category(); 
echo $category[0]->term_id;

The code isn't working outside loop correctly.

This should work on single posts, see this answer. What happens on your site? Are there other queries on that page? — fuxia, Commented Jun 5, 2013 at 5:32
I need parent category ID, it returns just category ID. Anyway, I got the solution and posed as answer. — IFightCode, Commented Jun 5, 2013 at 8:38

IFightCode · Accepted Answer · 2013-06-05 05:31:20Z

2

I'm solved, by using:

$category[0]->parent

Thanks anyway.

answered Jun 5, 2013 at 5:31

IFightCode

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