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我在这上面花了好几个小时，可以用第二双眼睛。我正在使用 Magento 并想打印类别的“文本层次结构”。就像是：

Default Category > Weightlifting Bars & Plates > Bars

我的文字是重复的。这是我的故障应该是什么样子

类别名称（top_category、sub_category1、sub_sub_category1、sub_sub_sub_category3 等）

这是我所拥有的：

    Default Category (Default Category)
    Weightlifting Bars & Plates (Default Category > Weightlifting Bars & Plates)
        Bars (Default Category > Weightlifting Bars & Plates > Bars)
            Men's 20kg Bars (Default Category > Weightlifting Bars & Plates > Bars > Men's 20kg Bars)
            Women's 15kg Bars (Default Category > Weightlifting Bars & Plates > Bars > Men's 20kg Bars > Women's 15kg Bars)
            Junior 10k Bars (Default Category > Weightlifting Bars & Plates > Bars > Men's 20kg Bars > Women's 15kg Bars > Junior 10k Bars)
            Technique Bars (Default Category > Weightlifting Bars & Plates > Bars > Men's 20kg Bars > Women's 15kg Bars > Junior 10k Bars > Technique Bars)

请注意，它在“Men's 20kg Bars”之后开始重复。那是因为变量没有被重置。

这是我的代码：

function print_tree($tree, $level, $category, $root_id, $print_category) {
    $r = $root_id;
    $cat = $category;
    $level++;

    foreach($tree as $item) {
        if ( $item['name'] == "Default Category" || $r != '' ) {
            if ($level == 1) {
                $cat = $item['name'];
            }
            else {
                $cat .= " > " . $item['name'];
            }

            $parent_id = ($r != '' ? $r : $item['category_id']);
            echo str_repeat("&nbsp;&nbsp;&nbsp;&nbsp;", $level) . $item['name'] . " (" . $cat . ")<br/>";

            $this->print_tree(
                $item['children'],
                $level,
                $cat,
                $parent_id,
                $print_category
            );
        }
    }

    return;
}

什么叫它：

$string = Mage::helper('googlemerchant/data')->print_tree($tree['children'], 0, 'Default Category', 0, $cat->getName());

不要关注 $print_category。这是我用于其他用途的变量。我知道这是一个逻辑错误，而不是 Magento 错误。代码工作正常。

感谢帮助。谢谢你。

4

1 回答 1

1

我想到了。我不得不修复 $new_cat（以前的 $cat）。

    function print_tree($tree, $level, $category, $root_id, $print_category) {
    $r = $root_id;
    $old_cat = $category;
    $new_cat = $category;
    $level++;

    foreach($tree as $item) {
        if ( $item['name'] == "Default Category" || $r != '' ) {
            if ($level == 1) {
                $new_cat = $item['name'];
            }
            else {
                $new_cat = $old_cat . " &gt; " . $item['name'];
            }

            $parent_id = ($r != '' ? $r : $item['category_id']);

            if ( count($item['children']) != 0 ) {
                echo "level " . $level . str_repeat("&nbsp;&nbsp;&nbsp;&nbsp;", $level) . $item['name'] . " (" . $old_cat . ") <br/>";
                $this->print_tree(
                    $item['children'],
                    $level,
                    $new_cat,
                    $parent_id,
                    $print_category
                );
            }
            else {
                echo "level " . $level . str_repeat("&nbsp;&nbsp;&nbsp;&nbsp;", $level) . $item['name'] . " (" . $old_cat . ")<br/>";
                $this->print_tree(
                    $item['children'],
                    $level,
                    $old_cat,
                    $parent_id,
                    $print_category
                );
            }
        }
    }

    return;
}
于 2012-05-25T12:52:08.100 回答