'tag.htm'; break; case 'flag': $pre .= $default_pre .= 'flag.htm'; break; case 'my': $pre .= $default_pre .= 'my.htm'; break; case 'my_password': $pre .= $default_pre .= 'my_password.htm'; break; case 'my_bind': $pre .= $default_pre .= 'my_bind.htm'; break; case 'my_avatar': $pre .= $default_pre .= 'my_avatar.htm'; break; case 'home_article': $pre .= $default_pre .= 'home_article.htm'; break; case 'home_comment': $pre .= $default_pre .= 'home_comment.htm'; break; case 'user': $pre .= $default_pre .= 'user.htm'; break; case 'user_login': $pre .= $default_pre .= 'user_login.htm'; break; case 'user_create': $pre .= $default_pre .= 'user_create.htm'; break; case 'user_resetpw': $pre .= $default_pre .= 'user_resetpw.htm'; break; case 'user_resetpw_complete': $pre .= $default_pre .= 'user_resetpw_complete.htm'; break; case 'user_comment': $pre .= $default_pre .= 'user_comment.htm'; break; case 'single_page': $pre .= $default_pre .= 'single_page.htm'; break; case 'search': $pre .= $default_pre .= 'search.htm'; break; case 'operate_sticky': $pre .= $default_pre .= 'operate_sticky.htm'; break; case 'operate_close': $pre .= $default_pre .= 'operate_close.htm'; break; case 'operate_delete': $pre .= $default_pre .= 'operate_delete.htm'; break; case 'operate_move': $pre .= $default_pre .= 'operate_move.htm'; break; case '404': $pre .= $default_pre .= '404.htm'; break; case 'read_404': $pre .= $default_pre .= 'read_404.htm'; break; case 'list_404': $pre .= $default_pre .= 'list_404.htm'; break; default: $pre .= $default_pre .= theme_mode_pre(); break; } if ($config['theme']) { $conffile = APP_PATH . 'view/template/' . $config['theme'] . '/conf.json'; $json = is_file($conffile) ? xn_json_decode(file_get_contents($conffile)) : array(); } !empty($json['installed']) and $path_file = APP_PATH . 'view/template/' . $config['theme'] . '/htm/' . ($id ? $id . '_' : '') . $pre; (empty($path_file) || !is_file($path_file)) and $path_file = APP_PATH . 'view/template/' . $config['theme'] . '/htm/' . $pre; if (!empty($config['theme_child']) && is_array($config['theme_child'])) { foreach ($config['theme_child'] as $theme) { if (empty($theme) || is_array($theme)) continue; $path_file = APP_PATH . 'view/template/' . $theme . '/htm/' . ($id ? $id . '_' : '') . $pre; !is_file($path_file) and $path_file = APP_PATH . 'view/template/' . $theme . '/htm/' . $pre; } } !is_file($path_file) and $path_file = APP_PATH . ($dir ? 'plugin/' . $dir . '/view/htm/' : 'view/htm/') . $default_pre; return $path_file; } function theme_mode_pre($type = 0) { global $config; $mode = $config['setting']['website_mode']; $pre = ''; if (1 == $mode) { $pre .= 2 == $type ? 'portal_category.htm' : 'portal.htm'; } elseif (2 == $mode) { $pre .= 2 == $type ? 'flat_category.htm' : 'flat.htm'; } else { $pre .= 2 == $type ? 'index_category.htm' : 'index.htm'; } return $pre; } ?>php - Display a list of posts corresponding to a category
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php - Display a list of posts corresponding to a category

programmeradmin3浏览0评论

I have this code that is displaying a list of my blogposts on my index. What I would like is to add a category parameter to it, to only display a list of the posts with a specific category. I don't seem to be able to do it, without breaking everything...

Thanks for your precious help.

    <?php $all_posts = new WP_Query( array( 'post_type' => 'post', 'post_status' => 'publish', 'posts_per_page' => -1 ) );

if ( $all_posts->have_posts() ):?>

    <ul>
        <?php while ( $all_posts->have_posts() ) : $all_posts->the_post();  global $post;
            ?>

            <li class='sub-menu'> 
                <a href='#' class="exposition"  data-id="<?php the_id();?>"><?php the_title(); ?></a>
                <ul>
                    <li>
                        <?php the_content(); ?>
                    </li>
                </ul>
            </li>
            <?php $images = get_field('gallery');?>

        <?php endwhile; ?>
        <?php else : ?>

        <?php endif; ?>

I have this code that is displaying a list of my blogposts on my index. What I would like is to add a category parameter to it, to only display a list of the posts with a specific category. I don't seem to be able to do it, without breaking everything...

Thanks for your precious help.

    <?php $all_posts = new WP_Query( array( 'post_type' => 'post', 'post_status' => 'publish', 'posts_per_page' => -1 ) );

if ( $all_posts->have_posts() ):?>

    <ul>
        <?php while ( $all_posts->have_posts() ) : $all_posts->the_post();  global $post;
            ?>

            <li class='sub-menu'> 
                <a href='#' class="exposition"  data-id="<?php the_id();?>"><?php the_title(); ?></a>
                <ul>
                    <li>
                        <?php the_content(); ?>
                    </li>
                </ul>
            </li>
            <?php $images = get_field('gallery');?>

        <?php endwhile; ?>
        <?php else : ?>

        <?php endif; ?>
Share Improve this question edited Jul 22, 2020 at 19:00 pual asked Jul 22, 2020 at 13:11 pualpual 1136 bronze badges 2
  • What did you try so far? Here are some category parameters from the docs which may help developer.wordpress/reference/classes/wp_query/… – mozboz Commented Jul 22, 2020 at 13:23
  • I know how to add a query, but I don't know how to check it then. $query = new WP_Query( array( 'category_name' => 'test' ) then there is the if but I don't know how to check if = 'test' – pual Commented Jul 22, 2020 at 13:28
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1 Answer 1

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As an alternative, consider using get_posts()?

get_posts()

It will require other changes to your code but you can easily create a query to include Categories, and then foreach through the results.

Update: Here's an equivalent to your code written with get_posts(). Take a copy of your own code first but the below would replace it all. Note the Category ID in the arguments - this is what you need to change to suit your needs.

get_posts() is a much simpler function for this kind of use case than WP_Query but is less flexible if you want complex queries.

<?php
$args = array(
  'numberposts' => -1,
  'category' => 1 //REPLACE THIS NUMBER WITH YOUR CATEGORY ID!
);

$all_posts = get_posts( $args );

if (count($all_posts) > 0) : ?>

<ul>
<?php 
    foreach ( $all_posts as $post ) : ?>
        <li class="sub-menu"> 
            <a href='#' class="exposition"  data-id="<?php _e($post->ID);?>">
                <?php _e($post->post_title);?>
            </a>
            <ul>
                <li>
                    <?php _e($post->post_content);?>
                </li>
            </ul>
        </li>
        
        <?php 
    endforeach;
?>
</ul>
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