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I have created 6 different custom post type, each having different post meta and taxonomies associated with it. I am displaying all different custom post types in a dropdown using get_post_types() function, Now, onchange of dropdown, I want to display associated meta fields and taxonomy.

I know that this information is not saved in DB unless a post is created, so is it possible to read this information like WordPress is reading or please suggest me if this is possible or not.

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If I understand correctly you want to get the taxonomies associated with a custom post type object, not with a specific single post. To do that you can use get_object_taxonomies(). For example, to get the names of the associated taxonomies to "my-custom-post-type":

 $taxonomies = get_object_taxonomies( 'my-custom-post-type', 'names' );

 foreach( $taxonomies as $taxname ) {
     echo $taxname;
 }

I think you can not do the same for meta fields because meta fields are associated with a specific single post not with a post type object. You will have to hardcode the relationship between metafields and custom post type.

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  • yes, I got it for taxonomies but I need it for the post_meta also. After lots of searching, I am also started to think that it is not possible.Thanks for your help.
    – Pritesh
    Jun 2, 2014 at 15:07

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