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When you register a post type you can pass an array of arguments that it "supports." (For example, "page-attributes," "author," "editor," etc.)

I see that get_post_types has some args you can filter by, but how can I filter those that "support" specific features such as "page-attributes" or "author"? I realize I could run a loop to filter after the fact, but can this be done without an extra step?

Thanks.

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Yes, this can be done. Here's how:

get_post_types( array('supports' => array('page-attributes')), 'names', 'OR');

This Trac ticket provides some explanation as to why that last parameter—the 'OR'—is necessary: http://core.trac.wordpress.org/ticket/17620

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  • Thanks for the reply. I'm running into the same thing as GaryJ (core.trac.wordpress.org/ticket/17620#comment:2). It's appears to be returning all posts—those that do and don't provide support. I'm just going to stick with subsequent loop using post_type_supports() for now.
    – robertwbradford
    Dec 9, 2011 at 20:12

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