我在自定义分类法中有此代码。php文件。

        if ( have_posts() ) :

            //do_action( \'generate_archive_title\' );
            $term = get_queried_object();
            $term_id = $term->term_id;
            $taxonomy_name = $term->taxonomy;
            $termchildren = get_terms( array(
                \'taxonomy\' => $taxonomy_name,
                \'parent\' => $term_id
            ));
            $secondimg = get_field(\'secondary_img\', $term);
            ?>

            <header class="page-header">
                <h1 class="page-title"><?php single_cat_title(); ?></h1>
                <?php
                if ( ! empty( term_description() ) ) :
                    printf( \'<div class="taxonomy-description">%s</div>\', term_description() );
                endif;
                if ( $secondimg ) echo \'<img src="\'.$secondimg[\'url\'].\'" alt="our image">\';
                ?>
            </header>

            <?php

            if ( $termchildren  ) {
                // we have kids...just show the terms.
                $howmany = count($termchildren);
                $i=1;
                foreach ( $termchildren as $child ) {
                    if ($i % 2 == 0) {
                        echo \'<div class="tax-entry flex \'.$howmany.\'">\';
                    } else {
                        echo \'<div class="tax-entry flex \'.$howmany.\'" style="flex-direction: row-reverse;">\';
                    }
                    ?>
                        <figure class="wp-block-media-text__media">
                            <?php if ( get_field(\'product_category_img\', $child) ) echo wp_get_attachment_image( get_field(\'product_category_img\', $child), \'full\' ) ;?>
                        </figure>
                        <div style="flex:60% 0 0;" class="wp-block-media-text__content">
                            <h2><?php echo $child->name ;?></h2>
                            <p>
                                <?php
                                if (get_field(\'short_description\', $child )){ 
                                    echo get_field(\'short_description\', $child );
                                }else{
                                    echo $child->description;
                                }?>
                            </p>
                            <a class="button" href="<?php echo get_term_link( $child, $taxonomy_name ) ;?>">See this Series</a>

                        </div>
                    </div> <!-- END FLEX -->
                    <?php
                    $i++;
                }
            } else { 
                // no kids...show the products
                echo \'<div class="productCategories grid">\';
                while ( have_posts() ) : the_post();
                    ?>

                    <div class="product_cat">
                        <a href="<?php the_permalink();?>">
                            <?php the_post_thumbnail(\'small\');?>
                            <h2><?php the_title();?></h2>
                <?php
                $subtitle = the_field(\'subtitle\');
                if ( $subtitle ) { 
                  echo \'<h3 class="entry-subtitle">\'.$subtitle.\'</h3>\';
                }
                 ?>
                        </a>
                        <?php //if (get_field(\'specs\')[\'part_number\']) echo \'<span>\'.get_field(\'specs\')[\'part_number\'].\'</span>\';?>
                    </div>

                <?php
                endwhile;
                echo \'</div>\';
            }

            /**
             * generate_after_loop hook.
             *
             * @since 2.3
             */
            do_action( \'generate_after_loop\' );

            generate_content_nav( \'nav-below\' );

        else :

            get_template_part( \'no-results\', \'archive\' );

        endif;

我想知道是否有一种方法可以更改此行的链接：

<a class="button" href="<?php echo get_term_link( $child, $taxonomy_name ) ;?>">See this Series</a>

因此，如果术语只有一种产品，它将链接到该产品本身。

这可能吗？

<?php
// Get (at most) 2 "product" posts in the child term.
$posts = get_posts( array(
    \'post_type\'      => \'product\', // just change the post type if it is not "product"
    \'posts_per_page\' => 2,
    $taxonomy_name   => $child->slug,
) );

// If there\'s exactly 1 post, use the post permalink.
if ( 1 === count( $posts ) ) : ?>
    <a class="button" href="<?php the_permalink( $posts[0] ); ?>">See this Product</a>
<?php // Else, use the term link.
else : ?>
    <a class="button" href="<?php echo esc_url( get_term_link( $child, $taxonomy_name ) ); ?>">See this Series</a>
<?php endif; ?>