loop - Display name of taxonomy once|江阴雨辰互联

What's the best way to only show the name of a taxonomy once? I use a taxonomy called show_category that has three categories: News, Reviews and Uncategorized. I have six posts: three in News, one in reviews and two in uncategorized. They are displayed as the following:

News (name of category in taxonomy) News item 1 News (name of category in taxonomy) News item 2 News (name of category in taxonomy) News item 3 Reviews (name of category in taxonomy) Review item Uncategorized (name of category in taxonomy) tes Uncategorized (name of category in taxonomy) test 2

I'm looking for a way to only the name of category in a taxonomy only once like this:

News (name of category in taxonomy) News item 1 News item 2 News item 3 Reviews (name of category in taxonomy) Review item Uncategorized (name of category in taxonomy) Tes Test 2

Code of my loop:

<?php $postcount=0; while ( have_posts() ) : the_post(); 
$terms = wp_get_post_terms( get_the_ID(), 'show_category');
foreach ($terms as $t):
echo $t->name;
endforeach;?>
<div id="<?php the_ID(); ?>" <?php post_class(); ?>>
<?php the_title();?>
</div>
<?php endwhile; ?>

I'm looking for a way to only the name of category in a taxonomy only once like this:

News (name of category in taxonomy) News item 1 News item 2 News item 3 Reviews (name of category in taxonomy) Review item Uncategorized (name of category in taxonomy) Tes Test 2

Code of my loop:

<?php $postcount=0; while ( have_posts() ) : the_post(); 
$terms = wp_get_post_terms( get_the_ID(), 'show_category');
foreach ($terms as $t):
echo $t->name;
endforeach;?>
<div id="<?php the_ID(); ?>" <?php post_class(); ?>>
<?php the_title();?>
</div>
<?php endwhile; ?>

Share Improve this question edited Oct 1, 2019 at 20:45 asked Oct 1, 2019 at 20:08 Gregory Schultz 6236 silver badges31 bronze badges

1 Can you fix your codes formatting so that multiple lines of PHP don't have unnecessary opening and closing tags, and statements are each on their own lines? It's difficult to read when everything is bunched up together :( – Tom J Nowell ♦ Commented Oct 1, 2019 at 20:19

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1 Answer 1

Sorted by: Reset to default 1

Not the best, but works well for me: (you can use this instead of what's in the question)

$postcount = 0;

//global $wp_query; // Uncomment if necessary.
// Group the posts by category.
$groups = [];
foreach ( $wp_query->posts as $i => $p ) {
    $terms = wp_get_post_terms( $p->ID, 'show_category' );
    foreach ( $terms as $t ) {
        if ( ! isset( $groups[ $t->term_id ] ) ) {
            $groups[ $t->term_id ] = [];
        }
        $groups[ $t->term_id ][] =& $wp_query->posts[ $i ];
    }
}

// And display the posts under their own category. Note though, that a post may
// appear twice if it's assigned to multiple categories.
global $post;
foreach ( $groups as $term_id => $posts ) {
    $term = get_term( $term_id );

    // Display the term/category name.
    echo '<h3>' . esc_html( $term->name ) . '</h3>';

    // And the category's posts.
    foreach ( $posts as $post ) {
        setup_postdata( $post );
        ?>
            <div id="<?php the_ID(); ?>" <?php post_class(); ?>>
                <?php the_title(); ?>
            </div>
        <?php
    }
}
wp_reset_postdata();

PS: The h3 tags are just examples..

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