Deregister custom post types

5 comments

1. As of WordPress 4.5 there is function to do that, unregister_post_type. Example:-

   function delete_post_type(){
       unregister_post_type( 'blocks' );
   }
   add_action('init','delete_post_type');
   

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2. Currently there is not a function for unregistering a post type, the process however is quite simple.

   Andrew Nacin provided some code over on trac, found here and posted below.

   if ( ! function_exists( 'unregister_post_type' ) ) :
   function unregister_post_type( $post_type ) {
       global $wp_post_types;
       if ( isset( $wp_post_types[ $post_type ] ) ) {
           unset( $wp_post_types[ $post_type ] );
           return true;
       }
       return false;
   }
   endif;
   

   Unregistering a built-in post type will have unknown effects on WordPress, so please do so at your own risk. Unregistering a custom post type should be perfectly safe, but would naturally do no cleanup on your installation(ie. unregistering a post type does not equate to data removal from the database).

   I can imagine a few scenarios where this could be required, but the more sensible approach(where possible), would be to simply not register the post type in the first place if it’s not wanted.

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3. This worked for me, like Rarst said using the remove_action() if possible.

   add_action( 'after_setup_theme','remove_foundation_options', 100 );
   
   function remove_foundation_options() {   
       remove_action( 'init', 'Orbit');    
   }
   

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4. As t31os noted it is easy to remove post type from global variable.

   But if you mean non-core post type then it would be better to lookup code that registers it and unhook with remove_action() (if it is decent code it should be hooked rather than run directly).

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5. In WordPress version 4.5 and above they provide a function to remove post type (unregister_post_type).
   Example

   function delete_post_type(){
   unregister_post_type( 'jobs' );
   }
   add_action('init','delete_post_type');
   

   It will work definately.

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