Question

我不希望使用任何插件来完成此任务，因为我最近经历过类似项目破坏网站的冲突。所以我希望从基础知识中创建这个功能。

我需要在产品类别页面上的下拉列表中按品牌选择产品。下拉列表将显示所有品牌。当您选择一个时，该网站仅显示分配给该品牌的产品。我们不需要使用允许按新颖性，价格，受欢迎程度等进行查看的内置下拉列表。

使用WooCommerce 'Brands ＆＃39;分类我已经设置了我的品牌，并为每个产品分配了一个品牌。

我可以使用以下代码查看所有品牌及其属性的数组：

$brands = get_terms('brand');
print_r($brands);

其中输出以下内容：

数组（

[0] =＆gt; WP_Term对象（[term_id] =＆gt; 978 [name] =＆gt; Imari Sometsuke [slug] =＆gt; imari-sometsuke [term_group] =＆gt; 0 [term_taxonomy_id] =＆gt; 978 [taxonomy] =＆gt;品牌[描述] =＆gt; [parent] =＆gt; 0 [count] =＆gt; 1 [filter] =＆gt; raw）

[1] =＆gt; WP_Term对象（[term_id] =＆gt; 982 [name] =＆gt; Kutani [slug] =＆gt; kutani [term_group] =＆gt; 0 [term_taxonomy_id] =＆gt; 982 [taxonomy] =＆gt;品牌[描述] =＆gt ; [parent] =＆gt; 0 [count] =＆gt; 2 [filter] =＆gt; raw）

[2] =＆gt; WP_Term对象（[term_id] =＆gt; 977 [name] =＆gt; Kutani Shoza [slug] =＆gt; kutani-shoza [term_group] =＆gt; 0 [term_taxonomy_id] =＆gt; 977 [taxonomy] =＆gt;品牌[描述] =＆gt; [parent] =＆gt; 0 [count] =＆gt; 4 [filter] =＆gt; raw）

[3] =＆gt; WP_Term对象（[term_id] =＆gt; 979 [name] =＆gt; Kutani Tokkuri [slug] =＆gt; kutani-tokkuri [term_group] =＆gt; 0 [term_taxonomy_id] =＆gt; 979 [taxonomy] =＆gt;品牌[描述] =＆gt; [parent] =＆gt; 0 [count] =＆gt; 2 [filter] =＆gt; raw）

[5] =＆gt; WP_Term对象（[term_id] =＆gt; 985 [name] =＆gt; Nishikawa Sukenobu [slug] =＆gt; nishikawa-sukenobu [term_group] =＆gt; 0 [term_taxonomy_id] =＆gt; 985 [taxonomy] =＆gt;品牌[描述] =＆gt; [parent] =＆gt; 0 [count] =＆gt; 1 [filter] =＆gt; raw）

[6] =＆gt; WP_Term对象（[term_id] =＆gt; 984 [name] =＆gt; Shinsui Ito [slug] =＆gt; shinsui-ito [term_group] =＆gt; 0 [term_taxonomy_id] =＆gt; 984 [taxonomy] =＆gt;品牌[描述] =＆gt; [parent] =＆gt; 0 [count] =＆gt; 2 [filter] =＆gt; raw）

[7] =＆gt; WP_Term对象（[term_id] =＆gt; 976 [name] =＆gt; Takeji Asano [slug] =＆gt; takeji-asano [term_group] =＆gt; 0 [term_taxonomy_id] =＆gt; 976 [taxonomy] =＆gt;品牌[描述] =＆gt; [parent] =＆gt; 0 [count] =＆gt; 2 [filter] =＆gt; raw）

[8] =＆gt; WP_Term对象（[term_id] =＆gt; 980 [name] =＆gt; Toshusai Sharaku [slug] =＆gt; toshusai-sharaku [term_group] =＆gt; 0 [term_taxonomy_id] =＆gt; 980 [taxonomy] =＆gt;品牌[描述] =＆gt; [parent] =＆gt; 0 [count] =＆gt; 3 [filter] =＆gt; raw）

）

如何构建下拉列表（select）列表来创建它？我想它会有类似的框架，我已经开始了：

<?php
$brands = get_terms('brand');
//print_r($brands);
?>

<select name="orderby" class="orderby">
    <?php foreach ( $brands as ??? ) : ?>
        <option value="<?php echo esc_attr( $??? ); ?>" <?php selected( $orderby, $??? ); ?>><?php echo esc_html( $??? ); ?></option>
    <?php endforeach; ?>
</select>

Answer 1

正如您所看到的那样，它是一个术语对象数组（WP_Term对象），您必须在循环中使用该术语的每个属性的对象语法，这样：

<?php

    $brands = get_terms( 'brand', array(
        'orderby'  => 'name'  // orderby arguments ('name', 'slug','term_group', 'term_id', 'id', 'description')
    ) );
    //print_r($brands);

?>
<select name="orderby" class="orderby">
    <?php
        foreach ( $brands as $key => $brand ) :
            $brand_id = $brand->term_id;
            $brand_name = $brand->name;
            $brand_slug = $brand->slug;
            $brand_term_group = $brand->term_group;
            $brand_term_taxonomy = $brand->term_taxonomy_id;
            $brand_taxonomy = $brand->taxonomy;
            $brand_description = $brand->description;
            $brand_parent = $brand->parent;
            $brand_count = $brand->count;
            $brand_filter = $brand->filter;

            $number = $key+1;
            $option = 'option-' . $number;
    ?>
        <option value="<?php echo $option; ?>"><?php echo $brand->name; ?></option>
    <?php endforeach; ?>
</select>

此代码已经过测试并正常工作

Answer 2

在新版本的WooCommerce中，terms的前缀为 pa _ ，因此品牌已被pa_brand取代

最新版本的工作代码为

<?php $brands = get_terms('pa_brand', ['orderby' => 'name']); ?> 
<select name="orderby" class="orderby">
    <?php
    if (!empty($brands) && !is_wp_error($brands)):
        foreach ($brands as $brand) :
            ?>
            <option value="<?= $brand->term_id; ?>">
                <?= $brand->name; ?>
            </option>
            <?php
        endforeach;
    endif;
    ?>
</select>

参考：https://developer.wordpress.org/reference/functions/get_terms/

下拉选择器

2 个答案: