谁能帮我在这个查询中添加类别id，这样就可以返回某个类别的帖子了吗？

有人能帮我在这个查询中添加类别id，这样就可以返回某个类别的帖子吗？提前谢谢。

<?php foreach(_get($wp_query->posts? : array()) as $n => $post){ setup_postdata($post); ?>

    // HTML and post Tags

<?php } ?>

/* * CODEX: http://codex.wordpress.org/Class_Reference/WP_Query#Parameters * Source: https://core.trac.wordpress.org/browser/tags/3.9/src/wp- includes/query.php */ $args = array( //////Category Parameters - Show posts associated with certain categories. //http://codex.wordpress.org/Class_Reference/WP_Query#Category_Parameters //all categories parameter \'cat\' => 5,//(int) - use category id. \'category_name\' => \'staff, news\', //(string) - Display posts that have these categories, using category slug. \'category_name\' => \'staff+news\', //(string) - Display posts that have "all" of these categories, using category slug. \'category__and\' => array( 2, 6 ), //(array) - use category id. \'category__in\' => array( 2, 6 ), //(array) - use category id. \'category__not_in\' => array( 2, 6 ), //(array) - use category id. \'post_type\' => \'post\', //post or you can use your custom post type \'post_status\' => \'publish\', \'order\' => \'DESC\', \'orderby\' => \'date\'); $the_query = new WP_Query( $args ); if ( $the_query->have_posts() ) { while ( $the_query->have_posts() ) { $the_query->the_post(); // Do Stuff } // end while } // endif // Reset Post Data wp_reset_postdata();

<?php $q = new WP_Query(array( \'post_type\' => \'post\', \'posts_per_page\' => \'1\', \'fields\' => \'ids\', \'cat\' => \'8\' )); foreach(_get($q->posts? : array()) as $post){ setup_postdata($post);?> // HTML and post Tags <?php } ?>

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我试图在表单提交后向用户发送电子邮件，但出现错误Call to undefined function wp_mail() in C:\\xampp\\htdocs\\wordpress\\wp-content\\plugins\\contact form\\contact-form-plugin.php on line 46<我在谷歌上搜索了一下，发现它与add_action( \'plugins_loaded\', \'functionShowForm\' );.我在代码中添加了这一行，但它在主窗

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PLUGINS_LOADED操作工作不正常