For your particular situation, where you need to have a menu registered, but not shown unless you click on it from a link on another page you can add a conditional check to see if you’re on the editing page. If so, then change replace null with book per the add_submenu_page() parameters. add_action( ‘admin_menu’, ‘add_the_menus’ … Read more
You only need one callback function, as defined in your call to register_setting() (Codex ref.): register_setting( $option_group, $option_name, $sanitize_callback ); Thus, all options are contained in an array, in a single database entry, $option_name. Then, the callback function is passed the $input variable that holds all of the form-submitted data, the function manipulates/sanitizes those data, … Read more
From the codex page: $menu_slug (string) (required) The slug name to refer to this menu by (should be unique for this menu). Prior to Version 3.0 this was called the file (or handle) parameter. If the function parameter is omitted, the menu_slug should be the PHP file that handles the display of the menu page … Read more
Let’s take a look at Codex page for add_menu_page… Third param is: $capability (string) (Required) The capability required for this menu to be displayed to the user. And later on in Notes section: This function takes a ‘capability’ (see Roles and Capabilities) which will be used to determine whether or not a page is included … Read more
I don’t think there is a clean way to put arbitrary link into the menu item. At most you could change it with JavaScript after the fact. However there is an edge case that allows you to load plugin file there. Pass as $menu_slug argument a path to a plugin file relative to plugins directory, … Read more
Admin Dashboard with Custom Tab for Client
Why add_menu_page adds admin.php and how to remove it?
manage-options should be manage_options. Try this: add_theme_page(‘Theme preferences’, ‘Theme pref.’, ‘manage_options’, ‘interact-theme-settings’, ‘render_theme_settings’);
You can add a link to the widgets.php like that: add_action( ‘admin_menu’, ‘f711_add_widgets_shortcut’, 999 ); function f711_add_widgets_shortcut() { add_menu_page( ‘Widgets’, ‘Widgets’, ‘publish_pages’, ‘widgets.php’, ”, ”, 61 ); } Be sure to check your permission settings, and you may also include another image. You can find the documentation about the function at The Codex.
You can set slug of a subpage to be the same as slug of parent page. For example: public function onixion_admin_menu_option() { add_menu_page(‘onixion’, ‘Onixion’, ‘manage_options’, ‘onixion-admin-menu’, array(&$this, ‘onixion_main_page’ ), ‘dashicons-chart-area’, ‘200’ ); add_submenu_page( ‘onixion-admin-menu’, ‘scripts’, ‘Scripts’, ‘manage_options’, ‘onixion-admin-menu’, // <– here we set the same slug as for parent page array(&$this, ‘onixion_scripts_page’ ) ); add_submenu_page( … Read more