WORDPRESS - Creare thme-options(submenu la meniurile default wordpress)

gistfile1.txt

Creez un fisier 'create_option.php', pe care il includ in functions.php si in care pun:
  
  <?php
    add_action('admin_menu', 'register_my_custom_submenu_page');
    
    function register_my_custom_submenu_page() {
      add_submenu_page( 'themes.php', 'My Custom Submenu Page', 'My Custom Submenu Page', 'manage_options', 'my-custom-submenu-page', 'my_custom_submenu_page_callback' ); 
	//aici, mai pot folosi(si e recomandat sa fac asta)
	//in loc de add_submenu_page
	//add_theme_page('My Custom Submenu Page', 'My Custom Submenu Page', 'read', 'my-custom-submenu-page', 'my_custom_submenu_page_callback' ); 

    }
    
    function my_custom_submenu_page_callback() {
      if(isset($_POST["phone"])) {
      	$phone = esc_attr($_POST["phone"]);
    	}
    	if (isset($_POST["update_settings"])) {	
    		update_option("phone_number", $phone);
    	}
    ?>
      <div class="wrap">
        <form method="POST" action="">
            <label for="phone">
              Phone number:
            </label> 
            <?php
				      $ph = get_option("phone_number");
            ?>
            <input type="text" name="phone" size="25" value="<?php echo $ph; ?>" />
            <input type="hidden" name="update_settings" value="Y" />  
            <input type="submit" value="Save settings" class="button-primary"/> 
        </form>
    </div>
  <?php  
    }
  ?>

  Si, cand vreau sa afisez valoarea salvata, folosesc: get_option("phone_number");


  Primul parametru de la add_submenu_page() , spune la care meniu va fi adaugat submeniul.(aici mi-l adauga in appearance)
  Examples:
  For Dashboard: add_submenu_page( 'index.php', ... );
  For Posts: add_submenu_page( 'edit.php', ... ); 
  For Media: add_submenu_page( 'upload.php', ... );
  For Links: add_submenu_page( 'link-manager.php', ... );
  For Pages: add_submenu_page( 'edit.php?post_type=page', ... );
  For Comments: add_submenu_page( 'edit-comments.php', ... ); 
  For Custom Post Types: add_submenu_page( 'edit.php?post_type=your_post_type', ... );
  For Appearance: add_submenu_page( 'themes.php', ... ); 
  For Plugins: add_submenu_page( 'plugins.php', ... );
  For Users: add_submenu_page( 'users.php', ... ); 
  For Tools: add_submenu_page( 'tools.php', ... ); 
  For Settings: add_submenu_page( 'options-general.php', ... );