wordpress Admin Menu shows duplicate entry

3 comments

1. By default the first submenu item is meant to be a clone of the main menu item, you can however change it.

   From: codex.wordpress.org/Adding_Administration_Menus

   “In situations where a plugin is creating its own top-level menu, the
   first submenu will normally have the same link title as the top-level
   menu and hence the link will be duplicated. The duplicate link title
   can be avoided by calling the add_submenu_page function the first time
   with the parent_slug and menu_slug parameters being given the same
   value.”

2. The Duplicate Sub-menu Item can be removed using the remove_submenu_page function:

   add_menu_page('Page Title', 'Menu Title', 'manage_options', 'menu-slug', 'my_settings_page');
   
   add_submenu_page('menu-slug', 'Sub Page Title', 'Sub Menu Title', 'manage_options', 'sub-menu-slug', 'my_settings_sub_page');
   
   remove_submenu_page('menu-slug', 'menu-slug');
   

   Use:

   remove_submenu_page( string $menu_slug, string $submenu_slug );

   Note that the sub-menu slug is the same as the top level menu slug.

3. Solution mentioned above didn’t work without adding a priority of “1” to my

   add_action('admin_menu', 'myplugin_add_submenu') 1);
   

   This finally solved the issue with duplicated menu item.

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