membuat menu di halaman admin wordpress

membuat menu page.php

<?php 
// define menu & posisi halaman
// action function for above hook
function mt_add_pages() {
    // Add a new submenu under Settings:
    add_options_page(__('Test Settings','menu-test'), __('Test Settings','menu-test'), 'manage_options', 'testsettings', 'mt_settings_page');

    // Add a new submenu under Tools:
    add_management_page( __('Test Tools','menu-test'), __('Test Tools','menu-test'), 'manage_options', 'testtools', 'mt_tools_page');

    // Add a new top-level menu (ill-advised):
    add_menu_page(__('Test Toplevel','menu-test'), __('Test Toplevel','menu-test'), 'manage_options', 'mt-top-level-handle', 'mt_toplevel_page' );

    // Add a submenu to the custom top-level menu:
    add_submenu_page('mt-top-level-handle', __('Test Sublevel','menu-test'), __('Test Sublevel','menu-test'), 'manage_options', 'sub-page', 'mt_sublevel_page');

    // Add a second submenu to the custom top-level menu:
    add_submenu_page('mt-top-level-handle', __('Test Sublevel 2','menu-test'), __('Test Sublevel 2','menu-test'), 'manage_options', 'sub-page2', 'mt_sublevel_page2');
}

// daftarkan di admin menu
// Hook for adding admin menus
add_action('admin_menu', 'mt_add_pages');


// buat halaman untuk menu tersebut
// mt_settings_page() displays the page content for the Test Settings submenu
function mt_settings_page() {
    echo "<h2>" . __( 'Test Settings', 'menu-test' ) . "</h2>";
}

// mt_tools_page() displays the page content for the Test Tools submenu
function mt_tools_page() {
    echo "<h2>" . __( 'Test Tools', 'menu-test' ) . "</h2>";
}

// mt_toplevel_page() displays the page content for the custom Test Toplevel menu
function mt_toplevel_page() {
    echo "<h2>" . __( 'Test Toplevel', 'menu-test' ) . "</h2>";
}

// mt_sublevel_page() displays the page content for the first submenu
// of the custom Test Toplevel menu
function mt_sublevel_page() {
    echo "<h2>" . __( 'Test Sublevel', 'menu-test' ) . "</h2>";
}
?>