function get_admin_page_title() {
  global $title, $menu, $submenu, $pagenow, $plugin_page, $typenow;

  if ( ! empty( $title ) ) {
    return $title;
  }

  $hook = get_plugin_page_hook( $plugin_page, $pagenow );

  $parent  = get_admin_page_parent();
  $parent1 = $parent;

  if ( empty( $parent ) ) {
    foreach ( (array) $menu as $menu_array ) {
      if ( isset( $menu_array[3] ) ) {
        if ( $menu_array[2] === $pagenow ) {
          $title = $menu_array[3];
          return $menu_array[3];
        } elseif ( isset( $plugin_page ) && $plugin_page === $menu_array[2] && $hook === $menu_array[5] ) {
          $title = $menu_array[3];
          return $menu_array[3];
        }
      } else {
        $title = $menu_array[0];
        return $title;
      }
    }
  } else {
    foreach ( array_keys( $submenu ) as $parent ) {
      foreach ( $submenu[ $parent ] as $submenu_array ) {
        if ( isset( $plugin_page )
          && $plugin_page === $submenu_array[2]
          && ( $pagenow === $parent
            || $plugin_page === $parent
            || $plugin_page === $hook
            || 'admin.php' === $pagenow && $parent1 !== $submenu_array[2]
            || ! empty( $typenow ) && "$pagenow?post_type=$typenow" === $parent )
          ) {
            $title = $submenu_array[3];
            return $submenu_array[3];
        }

        if ( $submenu_array[2] !== $pagenow || isset( $_GET['page'] ) ) { // Not the current page.
          continue;
        }

        if ( isset( $submenu_array[3] ) ) {
          $title = $submenu_array[3];
          return $submenu_array[3];
        } else {
          $title = $submenu_array[0];
          return $title;
        }
      }
    }
    if ( empty( $title ) ) {
      foreach ( $menu as $menu_array ) {
        if ( isset( $plugin_page )
          && $plugin_page === $menu_array[2]
          && 'admin.php' === $pagenow
          && $parent1 === $menu_array[2]
        ) {
            $title = $menu_array[3];
            return $menu_array[3];
        }
      }
    }
  }

  return $title;
}