WordPress的：如何显示类别和子分类逗号分隔

Question

我如何显示WordPress分类与逗号分隔子类别？ 我得到了以下内容，但它不是逗号分隔每个子类别。

我想指定从类别ID“1”的所有内容显示所有子类别逗号分隔。

$categories = get_categories();  // Current Category will retrive 
foreach ($categories as $category) { 
$cat = $category->name;    // Parent Category name 
$category = get_category_by_slug($cat); 

$args = array(
'type'      => 'post', 
'child_of'     => $category->term_id, 
'orderby'     => 'name', 
'order'     => 'ASC', 
'hide_empty'    => FALSE, 
'hierarchical'    => 1, 
'taxonomy'     => 'category', 
); 

$child_categories = get_categories($args); 

$category_list = array(); 
$category_list[] = $category->term_id; 

if (!empty ($child_categories)){ // If child Category available 
    foreach ($child_categories as $child_category){ // Print Child Category 
     $category_list[] = $child_category->term_id; 
     echo ",". $child_category->cat_name."<br/>"; 
    } 
} 
} 

Answer 1

$childCategoriesArray=Array(); // just for sake of safety 

if (!empty ($child_categories)){ // If child Category available 
    foreach ($child_categories as $child_category){ // Print Child Category 
     $category_list[] = $child_category->term_id; 
     $childCategoriesArray[]=$child_category->cat_name; 
    } 
} 
} 

echo implode(',',$childCategoriesArray); // that's it - comma separated :)