In the background of WordPress Add top menu and submenu of the function of the detailed, WordPress function detailed _php tutorial

In the background of WordPress Add top menu and submenu of the function of the detailed, WordPress function in detail

Add Settings page-add_menu_page function
Add_menu_page (), the function is to add a top-level menu to the back of the table, that is, "appearance", "plug-in" and so on the same top menu.

The functions are described as follows:

<?php  add_menu_page ($page _title, $menu _title, $capability, $menu _slug, $function, $icon _url, $position);  Page_title Page Title Tag info  //$menu _title menu title  //capability permissions  //menu_slug alias  //function Execute function  // Icon_url menu icon URL address  //position the position of this menu item in the menu, warning: If the Location property of the two menu items is the same, one of them may be overwritten  

For a function parameter, this parameter is typically the name of the functions, and if you want to invoke the method of the class in the class, it is called using the form array (class name, function name). If this parameter is empty, the Menu_slug parameter can be a file path.

The position parameter of the above function, the default menu item position property is as follows:

2 Dashboard 4 Separator 5 Posts Media Links ten Pages Comments-Separator appearance Ools Settings Separator

Well, it is still an example to explain, so as to Li Jufu. Create a new myfuntions.php in the default twenty ten theme, and then in the functions.php file include the editor to open our myfunctions.php,
Add new code:

<?php  function test_function () {    add_menu_page (' title ', ' menu title ', ' Edit_themes ', ' ashu_slug ', ' Display_ function ', ', 6);  }   function Display_function () {    echo '
This is the Settings page
';  }  Add_action (' Admin_menu ', ' test_function ');  

As you can see, the menu position is 6, and a comparison can be found, and it will look at the back of the article:

A top-level menu page has appeared ...

Add a submenu item-add_submenu_page
The functions for adding sub-menu items are as follows:

<?php  add_submenu_page ($parent _slug, $page _title, $menu _title, $capability, $menu _slug, $function);  parent_slug-parent menu item alias  //page_title--page title information  //menu_title-Menu title  //capability-permissions  //menu_ slug-aliases  //function-functions performed  

In fact, with the first two tutorials, the use of this function is needless to say.

instance, or using the files from the two tutorials (create a new myfuntions.php in the default twenty ten theme and include the new file in the functions.php file) Using the editor to open our myfunctions.php, we have added a top-level menu item in the previous tutorial, and today we will add a submenu item based on this top-level item, preserving the code of yesterday, supplementing the new Code, After that, the code in myfunctions.php is:

<?php   function test_function () {     add_menu_page (' title ', ' menu title ', ' Edit_themes ', ' ashu_slug ', ' Display_ function ', ', 6);   }      function Display_function () {     echo '
This is the Settings page
';   }   Add_action (' Admin_menu ', ' test_function ');   The following is the Add sub-menu item code  add_action (' Admin_menu ', ' add_my_custom_submenu_page ');   function Add_my_custom_submenu_page () {    ///top menu slug is Ashu_slug    add_submenu_page (' Ashu_slug ', ' submenu ', ' submenu ') , ' edit_themes ', ' ashu-submenu-page ', ' my_submenu_page_display ');  }   function My_submenu_page_display () {    echo '
Output code for sub-menu items
';   }   

Is this:

OK, add sub-menu items to finish ...

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