How to check if a slug exists?

Question

I have a arbitrary string and want to check if a post with that slug string exists in the site. I tried to find a way to list all slugs, but can't find such a thing. Thanks

Answer 1

Do you mean post slug? You can try to make use of wp_unique_post_slug() that WP uses to generate those. If I remember right if slug you are trying to use is not unique it will be returned with numerical index appended.

Answer 2

$args = array('name' => $slugName, 'post_type' => $postType); 

$slug_query = new WP_Query($args);
echo "<pre>";
var_dump($slug_query);
exit;

You then have more than enough information to test if a post was returned or not, hope this helps.