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我在以下场景中遇到了困难,我有一个包含类别的数组,因此类别可以有子类别,而子类别可以有无限的子类别。现在我想要实现的是以下目标,但我无法实现这一目标。

$items我有一个以下结构的数组

Array
(
    [0] => Array
        (
            [label] => Main Cat
            [id] => 29
            [parent_id] => 19
        )

    [1] => Array
        (
            [label] => Main Cat
            [id] => 17
            [parent_id] => 19
        )

    [2] => Array
        (
            [label] => Main Cat
            [id] => 20
            [parent_id] => 19
            [items] => Array
                (
                    [0] => Array
                        (
                            [label] => Child Level 1
                            [id] => 21
                            [parent_id] => 20
                        )

                    [1] => Array
                        (
                            [label] => Child Level 1
                            [id] => 22
                            [parent_id] => 20
                            [items] => Array
                                (
                                    [0] => Array
                                        (
                                            [label] => Child Level 2
                                            [id] => 27
                                            [parent_id] => 22
                                            [items] => Array
                                                (
                                                    [0] => Array
                                                        (
                                                            [label] => Child Level 3
                                                            [id] => 28
                                                            [parent_id] => 27
                                                        )

                                                )

                                        )

                                )

                        )

                    [2] => Array
                        (
                            [label] => Child Level 1
                            [id] => 23
                            [parent_id] => 20
                        )

                    [3] => Array
                        (
                            [label] => Child Level 1
                            [id] => 24
                            [parent_id] => 20
                            [items] => Array
                                (
                                    [0] => Array
                                        (
                                            [label] => Child Level 2
                                            [id] => 25
                                            [parent_id] => 24
                                        )

                                    [1] => Array
                                        (
                                            [label] => Child Level 2
                                            [id] => 26
                                            [parent_id] => 24
                                        )

                                )

                        )

                )

        )

)

现在我希望下面的数组显示在一个表格中,每个子级别都缩进,如果它应该从 Child Level 3 上升到 Child Level 2,那么缩进应该再次反转。

例子

<table border="2" width="100%">
    <tr>
        <td>Main Cat</td>
    </tr>
    <tr>
        <td>Main Cat</td>
    </tr>
    <tr>
        <td>Main Cat</td>
    </tr>
    <tr>
        <td style="margin-left:20px;">Child Level 1</td>
    </tr>
    <tr>
        <td style="margin-left:20px;">Child Level 1</td>
    </tr>
    <tr>
        <td style="margin-left:40px;">Child Level 2</td>
    </tr>
    <tr>
        <td style="margin-left:60px;">Child Level 3</td>
    </tr>
    <tr>
        <td style="margin-left:20px;">Child Level 1</td>
    </tr>
    <tr>
        <td style="margin-left:20px;">Child Level 1</td>
    </tr>
    <tr>
        <td style="margin-left:40px;">Child Level 2</td>
    </tr>
    <tr>
        <td style="margin-left:40px;">Child Level 2</td>
    </tr>
</table>

到目前为止,我的 PHP 代码看起来像这样,

public function renderCategoriesRecursive($items)
        {
                foreach($items as $item)
                {

                        $itemCount = count($item['items']);



                        echo CHtml::openTag('tr');
                            echo CHtml::openTag('td',array('class'=>$class));
                                echo $item['label'];
                            echo CHtml::closeTag('tr');
                        echo CHtml::closeTag('tr');


                        if(isset($item['items']) && $itemCount)
                        {

                                $this->renderCategoriesRecursive($item['items']);

                        }
                }
}

变量$items包含上面的数组

4

1 回答 1

1

我注意到您自己的解决方案引用了变量 $class,因此我也将其合并了。你真的不需要使用 CHtml (除非你这样做,但我从未见过这样的案例)

function renderItems( $array, $class, $indent = 0  ) {

    foreach( $items as $item) {
        echo '<tr><td class="'.$class.'">'.$item['label'].'</td></tr>';

        if( isset( $item['items'] && count( $item['items'] )
            renderItems($item['items'],$class,$indent+1);
    }

}
于 2013-02-11T22:24:10.880 回答