I don’t think it’s possible to have a 3rd layer menu. Look at the definition of [add_submenu_page] . https://developer.wordpress.org/reference/functions/add_submenu_page/ .It states that you need to include the parent slug. You can attempt to do it with some front end work around.
Instead of calling do_shortcode() just call the function associated with the shortcode. Example There is a shortcode named [example] and a function registered as shortcode handler: function example_shortcode( $atts = array(), $content=”” ) { extract( shortcode_atts( array ( ‘before’ => ”, ‘after’ => ”, ), $atts ) ); return $before . $content . $after; } … Read more
One option is to examine the $hook and see, if it matches the parent or any of the child menu page slugs. function load_entry_scripts($hook) { $hook_parts = explode(‘_page_’, $hook); $menu_slug = array_pop($hook_parts); if ( ! in_array( $menu_slug, array(‘my-parent-page-slug’, ‘my-child-page-slug’) ) ) { return; } // add styles && scripts }
I fixed this by changing the action I create the menu items from admin_init to admin_menu. The former runs far too early and I suppose was creating conflicts. I am now able to reorder my items by referencing them by their original slugs. For future reference and in case it is helpful to others, the … Read more
How to Call Specific .PHP file on add_submenu_page selection in Plugin Development?
I’ve edited my question to include the fact that I’ve found the answer to my own question here http://www.code-styling.de/english/how-to-use-wordpress-metaboxes-at-own-plugins in case anyone finds the question while searching for a similar solution. The two column variation he includes in his solution no longer seems to work but is a simple thing to override.
You will need to use an Ajax function. Which requires javascript to send the form data to your php Ajax function which you can use to run update_post_meta(); Example: Form Html: <form> <input id=”meta” type =”text” name=”2344″ value=”<?php echo esc_html( get_post_meta( 2344, ‘_your_key’, true) ); ?>” /> </form> Javascript: jQuery(document).ready(function() { jQuery(“form”).submit(function() { var post_meta … Read more
You have to declare the closure before you call add_menu_page(): $func = function() { echo “Done !”; }; add_menu_page(‘My page’,’My page’,’manage_options’,’my_page’, $func ); Note you need PHP 5.3 to do that.
Try it: function sunshine_submenu_show_fix($parent_file) { global $plugin_page; $taxonomy = $current_screen->taxonomy; if ($taxonomy == ‘sunshine-product-category’) $plugin_page=”sunshine_admin”; return $parent_file; } add_action(‘parent_file’, ‘sunshine_submenu_show_fix’); explanation: in file /wp-admin/menu-header.php: $parent_file = apply_filters( ‘parent_file’, $parent_file ); get_admin_page_parent(); … function _wp_menu_output(…) { … if ( ( $parent_file && $item[2] == $parent_file ) || ( empty($typenow) && $self == $item[2] ) ) { … Read more
$capa is a PHP expression and will always evaluate to administrator. Use the capability read instead – every role (by default) has this.