在PHP/Opencart中,如何将一个数组放在另一个数组中?

In PHP/Opencart, how to put an array inside another array?

我是 PHP 和 Opencart 的新手,我想展示一个 产品列表 及其适当的 类别 ,但我不知道如何用数组管理它:

$data['heading_title'] = $this->language->get('heading_title');

$results = $this->model_catalog_profile->getProducts();

if ($results) {
    foreach ($results as $result) {

        // Categories
        $categories = $this->model_profile_profile->getProductCategories($result['product_id']);

        $data['product_categories'] = array();

        foreach ($categories as $category_id) {
            $category_info = $this->model_profile_category->getCategory($category_id);
            if ($category_info) {
                $data['product_categories'][] = array(
                    'category_id' => $category_info['category_id'],
                    'name' => $category_info['name']
                );
            }
        }


        $data['products'][] = array(
            'product_id'  => $result['product_id'],
            'thumb'       => $image,
            'name'        => $result['name'],
            'product_categories'    => $data['product_categories'][]
            )
        );

    }

    return $this->load->view('module/latest', $data);
}

这里是代码视图:

<?php foreach ($products as $product) { ?>
<div class="profile-thumb transition">
    <div class="image"><a href="<?php echo $product['href']; ?>"><img src="<?php echo $product['thumb']; ?>" alt="<?php echo $product['name']; ?>" title="<?php echo $product['name']; ?>" class="img-responsive" /></a></div>
    <div class="caption">
        <h4><a href="<?php echo $product['href']; ?>"><?php echo $product['name']; ?></a></h4>
        <p><?php echo $product['description']; ?></p>

        <div id="product-category" class="" style="height: 120px; overflow: auto;">
            <?php foreach ($product_categories as $product_category) { ?>
">

您的方向是正确的,尽管我认为这可能更适合您要实现的目标:

if ($results) {

  // For best practice, let's define the products key value first
  $data['products'] = array();

  foreach ($results as $result)
  {
    // Create the array for our product
    $product = array(
      'product_id'         => $result['product_id'],
      'thumb'              => $image,
      'name'               => $result['name'],
      'product_categories' => array()
    );

    // Fetch the categories for this product
    $categories = $this->model_profile_profile->getProductCategories($result['product_id']);

    foreach ($categories as $category_id)
    {
        $category_info = $this->model_profile_category->getCategory($category_id);
        if (!$category_info) continue;

        // Assign our category information a new category array
        $category = [
          'category_id' => $category_info['category_id'],
          'name'        => $category_info['name']
        ];

        // Push the new category array to our products array
        array_push($product['product_categories'], $category);

        // Optionally, free up some memory
        unset($category_info);
    }

    // Now push our new product array to our data array
    array_push($data['products'], $product);

    // Optionally, we can perform some clean up
    unset($categories);
}

return $this->load->view('module/latest', $data);

我们在这里所做的是首先定义我们的 $data['products'] 数组 - 这只会使代码更易于阅读和快速浏览。

然后,我们在担心类别之前专注于创建一个 $product 数组;这样我们就可以在数组中创建我们的 product_categories 键,并使用一个空白数组作为初始值。

接下来,在我们使用 getProductCategories 获取类别后,我们枚举返回的数组,一路创建一个新的 $category 数组,然后使用 array_push将它添加到我们的 $product['product_categories'] 数组中。

最后一次循环,在我们完全构建了新的 $product 数组之后,我们再次使用 array_push 将其添加到我们的 $data['products'] 数组中。

希望这对您有所帮助。

根据讨论,只需从 'product_categories' => $data['product_categories'][] 中删除 []。应该是'product_categories' => $data['product_categories']

更新部分:

$data['products'][] = array(
    'product_id'  => $result['product_id'],
    'thumb'       => $image,
    'name'        => $result['name'],
    'product_categories'    => $data['product_categories']
    )
);

这可能对你有用。