我制作了一个小插件，可以从我的另一个博客中获取帖子，并使用一个短代码进行渲染：

<div class="blog__grid">
        <?php
            // If there are posts.
            if ( ! empty( $posts ) ) {

                // For each post.
                foreach ( $posts as $post ) {

                    $featured_img = $post->_embedded->{\'wp:featuredmedia\'}[0]->source_url;
                    $ecerpt = $post->excerpt->rendered;
                    // Format the date.
                    $fordate = date( \'n/j/Y\', strtotime( $post->modified ) );


                    // Show a linked title and post date.
                    ?>
                    <?php
                    $allposts .= "<div class=\'blog__grid__post\'>
                    <div class=\'blog__grid__post__image\'>
                        <img class=\'blog__grid__post__image--img\' src=\'{$featured_img}\' />
                        <a class=\'blog__grid__link\' href=\'/blog/" .$post->slug. "\'>"
                        . esc_html( $post->title->rendered ) .
                        \'</a>
                    </div>
                        <div class="blog__grid__post__meta">\'
                        . esc_html( $fordate ) .
                        \'</div>
                        <div class="blog__grid__post__excerpt">\'
                            .$ecerpt.
                        "</div>
                    </div>";

                }

            return $allposts;
        } ?>
    </div>

现在，当我尝试向使用此短代码的页面添加更多内容时，我编写的所有内容都封装在blog__grid tag，这是inspector的截图，突出显示的元素不应该在这个分区内，我不知道为什么，有人能帮我吗？

<div class="blog__grid">

            return $allposts;
        } ?>
    </div>