Holen Sie sich Woocommerce-Kategorien mit Unterkategorie

Question 1

Ich möchte alle Woocommerce-Kategorien im Frontend mit Unterkategorien wie diesem Ergebnis erhalten:

<ul>
    <li><a href="">Link</a>
        <ul>
            <li><a href="">Submenu link</a></li>
        </ul>
    </li>
</ul>

Hier ist, was ich habe (aber es ist nicht das, was ich will):

<?php

  $taxonomy     = 'product_cat';
  $orderby      = 'name';  
  $show_count   = 0;      // 1 for yes, 0 for no
  $pad_counts   = 0;      // 1 for yes, 0 for no
  $hierarchical = 1;      // 1 for yes, 0 for no  
  $title="";  
  $empty        = 0;

  $args = array(
         'taxonomy'     => $taxonomy,
         'orderby'      => $orderby,
         'show_count'   => $show_count,
         'pad_counts'   => $pad_counts,
         'hierarchical' => $hierarchical,
         'title_li'     => $title,
         'hide_empty'   => $empty
  );
 $all_categories = get_categories( $args );
 foreach ($all_categories as $cat) {
    if($cat->category_parent == 0) {
        $category_id = $cat->term_id;       
        echo '<li><a href="'.%20get_term_link($cat->slug,%20'product_cat')%20.'">'. $cat->name .'</a></li>';

        $args2 = array(
                'taxonomy'     => $taxonomy,
                'child_of'     => 0,
                'parent'       => $category_id,
                'orderby'      => $orderby,
                'show_count'   => $show_count,
                'pad_counts'   => $pad_counts,
                'hierarchical' => $hierarchical,
                'title_li'     => $title,
                'hide_empty'   => $empty
        );
        $sub_cats = get_categories( $args2 );
            if($sub_cats) {
                foreach($sub_cats as $sub_category) {
                    echo  '<li><a href="'.%20get_term_link($sub_category->slug,%20'product_cat')%20.'">'. $sub_category->name .'</a></li>';
                }
            }
        }       
}
?>

Dieser Code zeigt die Kategorie und Unterkategorie, aber die Unterkategorie ist nicht dort, wo sie sein sollte, die Unterkategorie ist wie ein separater Link wie dieser:

<ul>
    <li><a href="">link</a></li>
    <li><a href="">Submenu link</a></li>
</ul>

Question 2

Sie könnten diesen Code versuchen:

  $args = array(
          'taxonomy' => 'product_cat',
          'hide_empty' => false,
          'parent'   => 0
      );
  $product_cat = get_terms( $args );

  foreach ($product_cat as $parent_product_cat)
  {

  echo '
      <ul>
        <li><a href="'.get_term_link($parent_product_cat->term_id).'">'.$parent_product_cat->name.'</a>
        <ul>
          ';
  $child_args = array(
              'taxonomy' => 'product_cat',
              'hide_empty' => false,
              'parent'   => $parent_product_cat->term_id
          );
  $child_product_cats = get_terms( $child_args );
  foreach ($child_product_cats as $child_product_cat)
  {
    echo '<li><a href="'.get_term_link($child_product_cat->term_id).'">'.$child_product_cat->name.'</a></li>';
  }

  echo '</ul>
      </li>
    </ul>';
  }

Dies wird auf Ihrer WooCommerce, WordPress-basierten Website gedruckt.

Question 3

$taxonomy     = 'product_cat';
$orderby      = 'name';  
$show_count   = 0;      
$pad_counts   = 0;      
$hierarchical = 1;      
$title="";  
$empty        = 0;

$args = array(
    'taxonomy'     => $taxonomy,
    'orderby'      => $orderby,
    'show_count'   => $show_count,
    'pad_counts'   => $pad_counts,
    'hierarchical' => $hierarchical,
    'title_li'     => $title,
    'hide_empty'   => $empty
);

$all_categories = get_categories( $args );

foreach ($all_categories as $cat) {

    if($cat->category_parent == 0) {

        $category_id = $cat->term_id;

        echo '<br /> ('. $category_id .') <a href="'.%20get_term_link($cat->slug,%20'product_cat')%20.'">'. $cat->name .'</a>';

        $args2 = array(
            'taxonomy'     => $taxonomy,
            'parent'       => $category_id,
            'orderby'      => $orderby,
            'show_count'   => $show_count,
            'pad_counts'   => $pad_counts,
            'hierarchical' => $hierarchical,
            'title_li'     => $title,
            'hide_empty'   => $empty
        );

        $sub_cats = get_categories( $args2 );

        if($sub_cats) {

            foreach($sub_cats as $sub_category) {
                echo  '<br/> > <a href="'.%20get_term_link($sub_category->slug,%20'product_cat')%20.'">'. $sub_category->name .'</a>';
                echo apply_filters( 'woocommerce_subcategory_count_html', ' (' . $sub_category->count . ')', $category );


                 $args3 = array(
            'taxonomy'     => $taxonomy,
            'parent'       =>  $sub_category->term_id,
            'orderby'      => $orderby,
            'show_count'   => $show_count,
            'pad_counts'   => $pad_counts,
            'hierarchical' => $hierarchical,
            'title_li'     => $title,
            'hide_empty'   => $empty
        );

        $sub_cats3 = get_categories( $args3 );

        if($sub_cats3) {

            foreach($sub_cats3 as $sub_category3) {
                echo  '<br/> > > <a href="'.%20get_term_link($sub_category3->slug,%20'product_cat')%20.'">'. $sub_category3->name .'</a>';
                echo apply_filters( 'woocommerce_subcategory_count_html', ' (' . $sub_category3->count . ')', $category );

            }


                 }

            }
        }
    }       
}

Question 4

<?php

  $taxonomy     = 'product_cat';
  $orderby      = 'name';  
  $show_count   = 0;      // 1 for yes, 0 for no
  $pad_counts   = 0;      // 1 for yes, 0 for no
  $hierarchical = 1;      // 1 for yes, 0 for no  
  $title="";  
  $empty        = 0;

  $args = array(
         'taxonomy'     => $taxonomy,
         'orderby'      => $orderby,
         'show_count'   => $show_count,
         'pad_counts'   => $pad_counts,
         'hierarchical' => $hierarchical,
         'title_li'     => $title,
         'hide_empty'   => $empty
  );
 $all_categories = get_categories( $args );
 foreach ($all_categories as $cat) {
    if($cat->category_parent == 0) {
        $category_id = $cat->term_id;       
        echo '<br /><a href="'.%20get_term_link($cat->slug,%20'product_cat')%20.'">'. $cat->name .'</a>';

        $args2 = array(
                'taxonomy'     => $taxonomy,
                'child_of'     => 0,
                'parent'       => $category_id,
                'orderby'      => $orderby,
                'show_count'   => $show_count,
                'pad_counts'   => $pad_counts,
                'hierarchical' => $hierarchical,
                'title_li'     => $title,
                'hide_empty'   => $empty
        );
        $sub_cats = get_categories( $args2 );
        if($sub_cats) {
            foreach($sub_cats as $sub_category) {
                echo  $sub_category->name ;
            }   
        }
    }       
}
?>

Question 5

Um alle Kategorien zu erhalten und die Hierarchie beizubehalten, müssen Sie eine rekursive Funktion verwenden. Bedenken Sie, dass Sie die folgende Hierarchie der Woocommerce-Kategorien haben: (Kategoriename, übergeordnetes Element)

Kleidung 0

—Zubehör 127

——Parfum 130

——— Paris 141

—Kapuzenpullover 127

—T-Shirts 127

Dekor 0

Musik 0

Nicht kategorisiert 0

Schreiben Sie eine Funktion, um nur die übergeordneten Kategorien zu erhalten:

function getparentcategories()
    {
        $taxonomy     = 'product_cat';
        $orderby      = 'name';
        $show_count   = 0;      
        $pad_counts   = 0;      
        $hierarchical = 1;      
        $title="";
        $empty        = 0;

        $args = array(
            'taxonomy'     => $taxonomy,
            'orderby'      => $orderby,
            'show_count'   => $show_count,
            'pad_counts'   => $pad_counts,
            'hierarchical' => $hierarchical,
            'title_li'     => $title,
            'hide_empty'   => $empty
        );

        $all_categories = get_categories( $args );
        return $all_categories;
    }

Schreiben Sie dann eine zweite rekursive Funktion, um die Unterkategorie jedes übergeordneten Elements abzurufen, und übergeben Sie als Referenz ein zweidimensionales Array, um die Kategorie und ihre Ebene zu speichern:

function getcatsubs($items,&$arg,$level=0)
    {
        $taxonomy     = 'product_cat';
        $orderby      = 'name';
        $show_count   = 0;
        $pad_counts   = 0;
        $hierarchical = 1;
        $title="";
        $empty        = 0;

        if($items) {
            $category_id = $items->term_id;
            $args = array(
                'taxonomy' => $taxonomy,
                'child_of' => 0,
                'parent' => $category_id,
                'orderby' => $orderby,
                'show_count' => $show_count,
                'pad_counts' => $pad_counts,
                'hierarchical' => $hierarchical,
                'title_li' => $title,
                'hide_empty' => $empty
            );
            $sub_cats = get_categories($args);
            if($sub_cats)
            {
                foreach ($sub_cats as $sub)
                {
                    $category_id = $sub->term_id;
                    $args2 = array(
                        'taxonomy' => $taxonomy,
                        'child_of' => 0,
                        'parent' => $category_id,
                        'orderby' => $orderby,
                        'show_count' => $show_count,
                        'pad_counts' => $pad_counts,
                        'hierarchical' => $hierarchical,
                        'title_li' => $title,
                        'hide_empty' => $empty
                    );
                    array_push($arg[0],$sub);
                    array_push($arg[1],$level);
                    static::getcatsubs($sub,$arg,$level+1);
                }
            }
            else
            {
                return;
            }
        }
        else
        {
            return;
        }
    }

Führen Sie den folgenden Code aus, um die Hierarchie der Kategorien wie oben gedruckt zu erhalten:

$cats=getparentcategories();
foreach ($cats as $cat)
{
    if($cat->parent==0) {
        echo "<p>$cat->name $cat->parent</p>";
        $arg=[[],[]];
        getcatsubs($cat,$arg);
        if ($arg[0]) {
            $l=0;
            foreach ($arg[0] as $scat) {
                $i=$arg[1][$l];
                echo "<p>---";
                for ($x=0;$x<$i;$x++)
                    echo "---";
                echo "$scat->name $scat->parent</p>";
                $l++;
            }
        }
    }
}

Question 6

Basierend auf Peymans Antwort können Sie eine rekursive Funktion verwenden, wenn Sie Unterkategorien in anderen Unterkategorien haben:

function get_wc_categories(int $parent = 0): string {

    $text="<ul>";

    $args = array(
        'taxonomy' => 'product_cat',
        'hide_empty' => false,
        'parent'   => $parent
    );

    $product_cat = get_terms($args);

    if (empty($product_cat)) {
        return '';
    }

    foreach ($product_cat as $parent_product_cat) {

        $text .= '<li><a href="'.get_term_link($parent_product_cat->term_id).'">'.$parent_product_cat->name.'</a>';

        $text .= get_wc_categories($parent_product_cat->term_id);

        $text .= '</li>';
    }
    return $text . '</ul>';
}

Wenn Sie also die Kategorien anzeigen möchten, verwenden Sie Folgendes:

echo get_wc_categories();