尝试使用自定义分类法填充带有类别列表的数组

Question

I am trying to populate an array with a list of categories in a custom taxonomy I created.

The taxonomy's slug is "clipcat". I only want the array to populate with children of a clip with the same slug as the page slug the list is on.

Here's my code so far:

           <?php 
                global $post;
                $slug = get_post( $post )->post_name;
                echo $slug;
                $taxes = array('clipcat');
                $args = array(
                    'parent' => $slug,
                ); 
                $categories = get_terms( $taxes, $args );
            ?>
            <p>
                <?php print_r($categories); ?>
            </p>

You can see what this code outputs here: http://noellesnotes.com/portfolio/seventeen/

To my knowledge, the code is as it should be, but when I print the array (the last line in the code), the array is empty even though I know the clip category that is successfully assigned to $slug has three sub categories (so I must be coding something wrong).

Any help would be GREATLY appreciated!

Thanks!

Answer 1

According to the get_terms documentation, the parent key requires an integer:

"Parent (integer) Get direct children of this term (only terms whose explicit parent is this value). If 0 is passed, only top-level terms are returned. Default is an empty string"

I believe you are passing a string