Question

我目前正面临着根据数组中名为category的项目将数组分组到html表中的问题。

我有以下代码：

foreach ($this->items as $item) {
    $categories[] = $item->category;
}

<?php foreach ($categories as $category): ?>
        <table class="table table-bordered">
        <?php foreach ($this->items as $item) :?>
            <tr>
                <td></td>
                <td><?php echo $item->description; ?></td>
                <td><?php echo $item->price; ?></td>
            </tr>
        <?php endforeach; ?>
        </table> 
    <?php endforeach; ?>

但是我怎么告诉它，根据它的类别，它需要进入一个表或为该类别创建一个表？

每个单独类别的最终结果应如下所示：

enter image description here

添加说明

想想我修好了..我用过这段代码：

foreach( $this->items as $item ){
if( !isset( $zones[ $item->zone ] ) )
$zone_items[ $item->zone] = array();
$zone_items[ $item->zone ][] = $item;

    $zones[$item->zone] = array(
        'zone' => $item->zone,
        'zone_description' => $item->zone_description,
        'items' => $zone_items[$item->zone]
    );

}


<?php foreach( $zones as $zone): ?>
    <?php echo $zone['zone']; ?><br />
    <?php echo $zone['zone_description']; ?>

    <?php foreach( $zone['items'] as $items ) :?>
        <?php echo $items->name; ?>
        <?php echo $items->description; ?>
        <?php echo $items->category; ?>
    <?php endforeach; ?>

<?php endforeach; ?>

我获得了名称和描述，但没有任何项目..帮助非常感谢。

Answer 1

这个怎么样？我没有测试它，所以原谅任何错误，但是，你明白了:)我的例子中的表格也很棘手，嗯......只需要一些摆弄就可以从这里得到它; P

$categories = array();
foreach( $this->items as $item )
{
    if( !isset( $categories[ $item->category ] ) ) $categories[ $item->category] = array();
    $categories[ $item->category ][] = $item;
}

<?php foreach( $categories as $category => $items ): ?>
    <table class="table table-bordered">
        <tr>
            <td rowspan="<?php echo count( $items ); ?>"><?php echo $category; ?></td>
            <?php foreach( $items as $item ) :?>
                <td><?php echo $item->description; ?></td>
                <td><?php echo $item->price; ?></td>
            <?php endforeach; ?>
        </tr>
    </table>
<?php endforeach; ?>

要包含类别说明，您需要重新编写数组。现在，我不知道你的类别描述来自哪里，所以我只是告诉你数组和输出应该如何看待，并让你知道如何构建它;

<?php
$categories = array(
    array(
        'name' => 'Category Name',
        'description' => 'This is the category description',
        'items' => $itemsForThisCategory //you can still sort the items by category like I did above and then do "$itemsSortedByCategory[ 'Category Name' ]" here
    ),
    array(
        'name' => 'Another Category Name',
        'description' => 'This is the description for another category',
        'items' => $itemsForAnotherCategory
    ),
    //etc... as many categories as you have
);
?>

然后输出看起来像这样;

<?php foreach( $categories as $category ): ?>
    <table class="table table-bordered">
        <tr>
            <td rowspan="<?php echo count( $category['items'] ); ?>">
                <?php echo $category['name']; ?><br />
                <?php echo $category['description']; ?>
            </td>
            <?php foreach( $category['items'] as $item ) :?>
                <td><?php echo $item->description; ?></td>
                <td><?php echo $item->price; ?></td>
            <?php endforeach; ?>
        </tr>
    </table>
<?php endforeach; ?>

Answer 2

$categories = [];

foreach( $this->items as $item )
{
    $categories[$item->category][] = $item;
}

现在你应该有一个关联的$categories数组，每个索引都是一个类别，并包含该类别的项目。现在，您只需使用foreach遍历它，输出$category索引，然后输出包含在其中的对象。

php基于类别分组表

2 个答案: