Question

我需要在帖子数为0时打印另一个短代码我添加到此代码的任何代码都会返回致命错误

add_shortcode('reviews_total', 'reviews_total_func');

function reviews_total_func()
{ 

    global $post;
    $args = array(
                 'posts_per_page'   => -1,
                 'post_type' => 'testimonial',
                 'meta_key' => '_wpcf_belongs_' . $post->post_type . '_id', 
                'meta_value' => $post->ID,
    );

    $child_posts = get_posts($args);
    return count($child_posts);
}

如果count（$ child_posts）= 0

，我需要查看另一个短代码

Answer 1

假设这个短代码的唯一目的是输出帖子的数量，为什么不在返回值之前检查它？

示例：

add_shortcode('reviews_total', 'reviews_total_func');

function reviews_total_func()
{ 

    global $post;
    $args = array(
                 'posts_per_page'   => -1,
                 'post_type' => 'testimonial',
                 'meta_key' => '_wpcf_belongs_' . $post->post_type . '_id', 
                'meta_value' => $post->ID,
    );

    $child_posts = get_posts($args);

    if(count($child_posts) > 0)
         return count($child_posts);
    else
         return "Your custom, alternate zero-posts text";
}

Answer 2

使用函数do_shortcode

执行另一个短代码

add_shortcode('reviews_total', 'reviews_total_func');

function reviews_total_func() { 
    global $post;
    $args = array(
                 'posts_per_page'   => -1,
                 'post_type' => 'testimonial',
                 'meta_key' => '_wpcf_belongs_' . $post->post_type . '_id', 
                'meta_value' => $post->ID,
    );

    $child_posts = get_posts($args);

    if(count($child_posts) > 0)
        return count($child_posts);

    return do_shortcode( '[my-short-code]' );
}

短语if语句

2 个答案: