Php foreach循环工作，但类别名称不在Wp\U查询内循环：(

我想从帖子中查询类别。类别显示在输出中，但

category\u name

未在

wp\u query

数组中循环。我如何解决此问题

您可以在下面看到我的代码：

public function minzel_blog_cats() {
$settings = $this->get_settings_for_display();
$blog_cats = $settings['blog_category'];
//if (!empty($blog_cats) && !is_wp_error($blog_cats)) {
    foreach ($blog_cats as $blog_cat) {
        //$cat_options[$blog_cat->slug] = $blog_cat->slug;
        //$cat_options[$term->slug] = " '".$term->slug.", '";
        $cat_options = $blog_cat." , ";
        echo $blog_cat.", ";
    }
//}

return $cat_options;
}

$default    = [
    'posts_per_page'    => $blog_post_per,
    'orderby' => $blog_grid_orderby,
    'category_name' => " ' ".$this->minzel_blog_cats()." ', ",
    'order' => $blog_grid_order,
    'post_type'         => 'post',
];

---

您在循环中一次又一次地覆盖

$cat\u选项

，需要使用串联运算符（

）分配所有名称

---

将默认参数替换为以下代码并选中

$default    = [
    'posts_per_page'    => $blog_post_per,
    'orderby' => $blog_grid_orderby,
    'category' => " ' ".$this->minzel_blog_cats()." ', ",
    'order' => $blog_grid_order,
    'post_type'         => 'post',
];

$default    = [
    'posts_per_page'    => $blog_post_per,
    'orderby' => $blog_grid_orderby,
    'category' => " ' ".$this->minzel_blog_cats()." ', ",
    'order' => $blog_grid_order,
    'post_type'         => 'post',
];