WordPress设置登陆用户和未登陆用户显示不同菜单
目前大多数WordPress主题都支持在后台 – 外观 – 菜单中设置网站的菜单,而且可以创建多个菜单,给各个菜单单独设置菜单项。
目前有这样的需求:网站头部有一个导航菜单,想在这个位置给登录和未登录用户分别显示不同的菜单项,该如何实现呢?WordPress给我们提供了wp_nav_menu_args这个filter,可以在菜单显示之前更改wp_nav_menu函数的参数。具体我们可以这样实现:
1、创建两个菜单
先进入WordPress后台 – 外观 – 菜单中, 创建两个菜单,菜单名称分别设置成:已登录 和 未登录,并给这两个菜单分配不同的菜单项。
不懂设置的,可以参考视频教程:WordPress创建菜单
2、确定菜单位置名称
开始下一步前,我们需要知道菜单位置名称,也就是theme_location参数的值,用文本编辑器打开当前主题目录中的header.php,搜索wp_nav_menu一般都能找到这个值,代码一般长这样:
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<span class="token comment" spellcheck="true">// theme_location后面的 top 就是我们要找的值</span> <span class="token function">wp_nav_menu</span><span class="token punctuation">(</span> <span class="token keyword">array</span><span class="token punctuation">(</span> <span class="token string">'theme_location'</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token string">'top'</span><span class="token punctuation">,</span> <span class="token string">'menu_id'</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token string">'top-menu'</span><span class="token punctuation">)</span> <span class="token punctuation">)</span><span class="token punctuation">;</span> |
如果你实在不懂代码,具体可以看视频教程提供的简便方法:确定菜单位置名称
3、添加执行代码
最后,在当前主题的functions.php添加以下代码即可:
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<span class="token keyword">function</span> <span class="token function">ludou_nav_menu_args</span><span class="token punctuation">(</span><span class="token variable">$args</span> <span class="token operator">=</span> <span class="token string">''</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token comment" spellcheck="true">// 下面的top改成第2步获取到的菜单位置名称</span> <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token variable">$args</span><span class="token punctuation">[</span><span class="token string">'theme_location'</span><span class="token punctuation">]</span> <span class="token operator">==</span> <span class="token string">'top'</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token function">is_user_logged_in</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token variable">$args</span><span class="token punctuation">[</span><span class="token string">'menu'</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token string">'已登录'</span><span class="token punctuation">;</span> <span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span> <span class="token variable">$args</span><span class="token punctuation">[</span><span class="token string">'menu'</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token string">'未登录'</span><span class="token punctuation">;</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span> <span class="token keyword">return</span> <span class="token variable">$args</span><span class="token punctuation">;</span> <span class="token punctuation">}</span> <span class="token function">add_filter</span><span class="token punctuation">(</span><span class="token string">'wp_nav_menu_args'</span><span class="token punctuation">,</span> <span class="token string">'ludou_nav_menu_args'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
— 完 —
文章来源: https://www.ludou.org/wordpress-show-different-menu-for-logged-in-users-and-users-not-logged-in.html