Woocommerce - Get Parent Category Name for Sub Category

Question

I have the following code to back button but I want to display the previous category/parent category on the button it does not work as it only shows the current category name in button.

add_action( 'woocommerce_before_shop_loop', 'my_back_button_sample', 11 );
function my_back_button_sample() {
if ( is_product_category() ) {
  //global $product;
  global $wp_query;
    $cate = get_queried_object();
    $cateID = $cate->term_id;
    $product_cat_id = $cateID;
    $id = $product_cat_id;
//if( $term = get_term_by( 'id', $id, 'product_cat' ) ){
//    $test = $term->name;
//  $test .= "-".$term->id;
//}
$parentcats = get_ancestors($product_cat_id,'slug_name', 'product_cat');
    foreach($parentcats as $parentcat){
        if (is_subcategory()) {
  $term = get_queried_object();
  $parent_id = $term->parent;
  $parent_name = $parent_id->name;
  $test = $parent_name;
}
 //   $test = $parentcat->name;
}

  echo '<br/><div class="avia-button-wrap avia-button-left  avia-builder-el-9  el_after_av_button  el_before_av_button ">
  <a class="avia-button   avia-icon_select-no avia-color-blue avia-size-medium avia-position-left " onclick="history.back();" style="cursor: pointer;">
  <span class="avia_iconbox_title">Go Back to '.$test.'</span></a></div> '; 
}
}

I had a look at the following code but it only brings up the parent category id and not the name.

https://stackoverflow.com/a/53705291/15581453

Answer 1

I did some changes on your code.

add_action( 'woocommerce_before_shop_loop', 'my_back_button_sample', 11 );
function my_back_button_sample() {
if ( is_product_category() ) {
    $curr_cat = get_queried_object();
    if($curr_cat->parent > 0):
        $parentcats = get_ancestors($curr_cat->term_id, 'product_cat');
        foreach($parentcats as $parent):
            $cat = get_term($parent,'product_cat');
            $cat_name = $cat->name;
        endforeach;
    else:
        $cat_name = $curr_cat->name;
    endif;
  echo '<br/><div class="avia-button-wrap avia-button-left  avia-builder-el-9  el_after_av_button  el_before_av_button ">
  <a class="avia-button   avia-icon_select-no avia-color-blue avia-size-medium avia-position-left " onclick="history.back();" style="cursor: pointer;">
  <span class="avia_iconbox_title">Go Back to '.$cat_name.'</span></a></div> '; 
}
}