1、第一种，在function.php中添加这个东东，wp_nav_menu()主要是用这个函数
$menu = ‘menu‘; $nav_menu = wp_get_nav_menu_object($menu); wp_nav_menu( array( ‘fallback_cb‘ => ‘‘, ‘menu‘ => $nav_menu ));
然后访问任何页面就有了，但是呢这个页面不是特别好，很乱
2、我们用sql语句来查询这个东东
function show_category(){ global $wpdb; $request = "SELECT $wpdb->terms.term_id, name FROM $wpdb->terms "; $request .= " LEFT JOIN $wpdb->term_taxonomy ON $wpdb->term_taxonomy.term_id = $wpdb->terms.term_id "; $request .= " WHERE $wpdb->term_taxonomy.taxonomy = ‘category‘ "; $request .= " ORDER BY term_id asc"; $categorys = $wpdb->get_results($request); foreach ($categorys as $category) { //调用菜单 $output = ‘<span>‘.$category->name."(<em>".$category->term_id.‘</em>)</span>‘; echo $output; } }
在需要显示的地方添加下面的调用代码即可
<?php show_category(); ?>
这样就出来所有的了，我们可以自己加条件，比如利用term_taxonomy这个表的parent可以查出来这个子菜单有啥？
就像这样，我还顺便多查了个parent，但是呢，我现在是系统弄得列表页，我不知道怎么获得他的parent，还是不好查，555，继续学习中啊
function show_category(){ global $wpdb; $request = "SELECT $wpdb->terms.term_id, name, parent FROM $wpdb->terms "; $request .= " LEFT JOIN $wpdb->term_taxonomy ON $wpdb->term_taxonomy.term_id = $wpdb->terms.term_id "; $request .= " WHERE $wpdb->term_taxonomy.taxonomy = ‘category‘ and $wpdb->term_taxonomy.parent = 4 "; $request .= " ORDER BY term_id asc"; $categorys = $wpdb->get_results($request); foreach ($categorys as $category) { //调用菜单 $output = ‘<span>‘.$category->name."(<em>".$category->term_id."(<em>".$category->parent.‘</em>)</em>)</span>‘; echo $output; } }
