I'm facing issue in custom post type like if there's no post then we have to show custom message like sorry no post available

Question

如果没有不可用的帖子，我将面临自定义帖子类型的问题，然后需要显示自定义消息。所以我试过下面的代码但是

                <div class="industry_item_grid">
                    <div class="industry_item_head">
                        <h3 class="industry_title">Telecom</h3>
                        <a href="<?php echo site_url('/category/telecom')?>" class="casestudy_viewall">View all</a>
                    </div>
                    <div class="industry_item_row">
                    <?php 

                        $paged = (get_query_var( 'paged' )) ? get_query_var( 'paged' ) : 1;
                        $args = array(
                            'post_type' => 'post',
                            'post_status' => 'publish',
                            'category_name' => 'Telecom',
                            'posts_per_page' => 3,
                            'cat'   => 23,
                            'paged' => $paged,
                        );
                        $arr_posts = new WP_Query( $args );
                        $totalpost = $arr_posts->found_posts;

                        if ( $arr_posts->have_posts() ) :

                            while ( $arr_posts->have_posts() ) :
                                $arr_posts->the_post();

                    ?>
                    

//the_content();

        <?php
            endwhile;
            endif;
                
        ?>
                    </div>
                </div>

Answer 1

if ( $arr_posts->have_posts() ) :

                        while ( $arr_posts->have_posts() ) :
                            $arr_posts->the_post();

当have_posts() 为 false 时，您需要在 if 语句中添加一个分支，如下所示：

if ( $arr_posts->have_posts() ) :
    while ( $arr_posts->have_posts() ) :
        $arr_posts->the_post();
?>
//the_content();
<?php
    endwhile;
else: ?>
    <p>Sorry, no posts available.</p>
<?php endif; ?>