How to display post count in Categories metabox in dashboard?

1 comment

1. Hooking into the_category and taking care of only applying it in the correct screen, we can add a category count just after its name.

   <?php
   /*
       Plugin Name: Category count in Meta Box
       Version: 0.1
       Plugin URI: http://stackoverflow.com/q/13117968/1287812
       Author: Rodolfo Buaiz 
       Author URI: http://wordpress.stackexchange.com/users/12615/brasofilo
   */
   
   // The hook "load-{$pagenow}" only runs in admin and in the specified page
   add_action( 'load-post-new.php', 'add_filter_cat_so_13117968' );
   add_action( 'load-post.php', 'add_filter_cat_so_13117968' );
   
   function add_filter_cat_so_13117968()
   {
       // Run only in correct post type
       global $typenow;
       if( 'post' != $typenow )
           return;
   
       add_filter( 'the_category', 'filter_cat_so_13117968' );
   }
   
   function filter_cat_so_13117968( $cat_name )
   {
       $cat_id = get_cat_ID( $cat_name );
       $category = get_category( $cat_id );
       $count = $category->category_count;
       return "$cat_name ($count)";
   }
   

   

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