首先我们打开自己网站根目录/wp-content/themes/zibll/ 在这里面找到这个文件functions.php 然后我们在里面加入以下代码

/**
 * 开始-注册自定义API端点用于随机文章跳转 
 */
function register_random_post_redirect_endpoint() {
    register_rest_route('wp/v2', '/random-post', array(
        'methods' => 'GET',
        'callback' => 'handle_random_post_redirect',
        'permission_callback' => '__return_true'
    ));
}
add_action('rest_api_init', 'register_random_post_redirect_endpoint');

function handle_random_post_redirect($request) {
    // 获取所有已发布的文章
    $args = array(
        'post_type' => 'post',
        'post_status' => 'publish',
        'fields' => 'ids',
        'posts_per_page' => -1,
    );
    
    $posts = get_posts($args);
    
    if (empty($posts)) {
        return new WP_Error('no_posts', '没有找到文章', array('status' => 404));
    }
    
    // 随机选择一篇文章
    $random_post_id = $posts[array_rand($posts)];
    $random_post_url = get_permalink($random_post_id);
    
    // 直接重定向
    if (!headers_sent()) {
        wp_redirect($random_post_url);
        exit;
    }
    
    // 如果无法重定向，返回JSON响应
    return array(
        'post_id' => $random_post_id,
        'post_url' => $random_post_url,
        'message' => '请手动访问上面的URL'
    );
}
function zib_get_random_post_button($args = array()) {
    if (!_pz('random_post_button', true)) {
        return '';
    }

    $random_icon = '<svg t="1751112388719" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="5410" width="1000" height="1000" data-spm-anchor-id="a313x.search_index.0.i12.4dfa3a81Mc8lKy"><path d="M166.464 448.704l212.64 128.736a32 32 0 1 1-33.152 54.72L79.424 470.848a32 32 0 0 1 4.256-56.928l832-347.456a32 32 0 0 1 43.744 35.52l-145.76 768a32 32 0 0 1-48.576 21.056L494.88 719.712a32 32 0 0 1 34.24-54.08l230.464 146.112L885.44 148.48 166.464 448.704z" p-id="5411" data-spm-anchor-id="a313x.search_index.0.i14.4dfa3a81Mc8lKy"></path><path d="M416 632.096V896a32 32 0 0 1-64 0V617.376a32 32 0 0 1 11.2-24.32L752.192 260a32 32 0 0 1 41.6 48.64L416 632.064z" p-id="5412" data-spm-anchor-id="a313x.search_index.0.i13.4dfa3a81Mc8lKy"></path></svg>';

    $defaults = array(
        'class' => 'jb-blue radius-circle', 
        'text' => '随机文章',
        'icon' => $random_icon,
        'tooltip' => '随机阅读一篇文章',
        'echo' => true
    );
    
    $args = wp_parse_args($args, $defaults);
    
    $button = '<a href="' . esc_url(home_url('/wp-json/wp/v2/random-post')) . '" rel="external nofollow"  
          class="random-post-button but ' . esc_attr($args['class']) . ' ml10" 
          data-toggle="tooltip" 
          data-placement="bottom" 
          title="' . esc_attr($args['tooltip']) . '">'
          . $args['icon']
          . esc_html($args['text'])
          . '</a>';

    if ($args['echo']) {
        echo $button;
    }
    
    return $button;
}


//使用api
/*https://你的域名/wp-json/wp/v2/random-post*/

 /**
 * 结束-注册自定义API端点用于随机文章跳转 
 */