在特定的自定义分类上显示多列类别

Question

I'm trying to list all terms on a custom taxonomy but I wanted to at least group them into 3 columns including their children to have a visual balance. Here's what I've done so far. I'm stuck on creating the loop after it reached the maximum term. On what I have, It wrapped all the succeeding items with 'ul' instead of creating a second ul and list the next batch. After it reaches the x amount of term it should create another 'ul' element listing categories in it. There will be a total of 3 columns.

    <?php 

        $get_cats = wp_list_categories( 'echo=0&title_li=&depth=2&hide_empty=0,&taxonomy=industries' );
        // Split into array items

        $cat_array = explode('</li>',$get_cats);
        // Amount of categories (count of items in array)
        $results_total = count($cat_array);
        // How many categories to show per list (round up total divided by 3)
        $cats_per_list = ceil($results_total / 3);
        // Counter number for tagging onto each list
        $list_number = 1;
        // Set the category result counter to zero
        $result_number = 0;
        ?>

        <?php echo $cats_per_list ; ?>

        <ul class="cat_col" id="cat-col-<?php echo $list_number; ?>">

        <?php
        foreach($cat_array as $category) {

            $result_number++;

            if($result_number >= $cats_per_list) {
                $list_number++;
                echo $category.'</li> </ul> <ul class="cat_col" id="cat-col-'.$list_number.'">';
            }
            else {
                echo $category.'</li>';
            }

        }
        ?>
        </ul>           

Answer 1

The code is very buggy. Just a couple of observations:

Next in the

if($result_number >= $cats_per_list) {

Block you are going to have to reset result_number to 0 since the count starts over again. Your current code would only meet that condition once since $cats_per_list is defined as the average of the total amount. After that it would continue counting up and ALWAYS be >= $cats_per_list

Next: it's quibble but you probably don't need to ceil the result since you are using >=, that operation pretty much does the same thing since 1.5 will meet the criteria of >= 1 as a for instance.

Try this and see if it is any better:

   <?php 

        $get_cats = wp_list_categories( 'echo=0&title_li=&depth=2&hide_empty=0,&taxonomy=industries' );
        // Split into array items

        $cat_array = explode('</li>',$get_cats);
        // Amount of categories (count of items in array)
        $results_total = count($cat_array);
        // How many categories to show per list (round up total divided by 3)
        $cats_per_list = ceil($results_total / 3);
        // Counter number for tagging onto each list
        $list_number = 1;
        // Set the category result counter to zero
        $result_number = 0;
        ?>

        <?php echo $cats_per_list ; ?>

        <ul class="cat_col" id="cat-col-<?php echo $list_number; ?>">

        <?php
        foreach($cat_array as $category) {

            $result_number++;

            if($result_number >= $cats_per_list) {
$result_number = 0;
                $list_number++;
                echo $category.'</li> </ul> <ul class="cat_col" id="cat-col-'.$list_number.'">';
            }
            else {
                echo $category.'</li>';
            }

        }
        ?>
        </ul>