显示不超过2个类别，最后一个类别删除结束斜杠

Question

我试图在wordpress中显示最多2个类别，并设法这样做，只是不知道如何检测第二个。

<?php
while ( have_posts() ) : the_post();
    $terms  = get_terms( 'directory_categories', 'orderby=name&hide_empty=1&hierarchical=0' ); 
// I am getting the categories
    $i = 0;
    $len = count($terms); // counting the categories
    foreach($terms as $term) {
// terms is an array of objects (http://codex.wordpress.org/Function_Reference/get_terms)
      $i++;
      if ($i < 3) {
        //if it reached second loop then displays with '/'
        $array[] = $term->name;
        $limit = count($array);
      ?>
      <a href="<?php echo get_term_link( $term->slug, 'directory_categories' ); ?>"><?php echo $term->name; ?></a>/
    <?php
      // else if it reached second loop and second loop is 2 then it should omit the slash
    } elseif($i < 3 && i == 2) { ?>
    <a href="<?php echo get_term_link( $term->slug, 'directory_categories' ); ?>"><?php echo $term->name; ?></a>
    <?php } else { } ?>
<?php } ?> <!-- end foreach -->
endwhile;
?>

CURRENT OUTPUT

Category 1 / Category 2/

期望输出没有结束斜杠

Category 1 / Category 2

我很确定逻辑是错误的，请告诉我我错在哪里。

Answer 1

请使用下面的代码(我已经添加了注释，以便您可以轻松维护它):

<?php 
while ( have_posts() ) : the_post();
    $tax = 'directory_categories'; // your taxonomy
    $total = 2; // number of categories to show for each post
    $sep = ' / '; // separator you want to use
    $terms = get_the_terms(get_the_ID(), $tax);
    if ($terms && !is_wp_error($terms)) {
        $terms = array_values($terms);
        foreach ($terms as $key => $term) {
            echo '<a href="' . get_term_link($term->slug, $tax) . '">' . $term->name . '</a>';
            if ($key < $total - 1 && count($terms) >= $total) {
                echo $sep;
            }
            if ($key == $total - 1) {
                break;
            }
        }
    }
endwhile;
?>