PHP多维数组转无序列表,建立url路径
我在 PHP 中有一个由 icio 和 ftrotter 的优秀示例生成的多维数组(我在数组变体中使用 ftrotterrs 数组):
我已经将其变成无序列表宽度的方法:
public function outputCategories($categories, $startingLevel = 0)
{
echo "<ul>\n";
foreach ($categories as $key => $category)
{
if (count($category['children']) > 0)
{
echo "<li>{$category['menu_nl']}\n";
$this->outputCategories($category['children'], $link
, $start, $startingLevel+1);
echo "</li>\n";
}
else
{
echo "<li>{$category['menu_nl']}</li>\n";
}
}
echo "</ul>\n";
}
到目前为止一切顺利。
现在我想使用 url_nl 字段来构建用作菜单中链接的 url。 url 必须通过在树中向下移动的每个步骤添加 /url_nl 来反映树中链接的深度。
我的目标:
- item 1 (has link: /item_1)
* subitem 1 (has link: /item_1/subitem_1)
* subitem 2 (has link: /item_1/subitem_1)
* subsubitem 1 (has link: /item_1/subitem_2/subsubitem_1)
- item 2 (has link: /item_2)
表
id
id1 (parent id)
menu_nl
url_nl
title_nl
etc
到目前为止我所拥有的:
public function outputCategories($categories, $link, $start, $startingLevel = 0)
{
// if start not exists
if(!$start)
$start = $startingLevel;
echo "<ul>\n";
foreach ($categories as $key => $category)
{
$link.= "/".$category['url_nl'];
if($start != $startingLevel)
$link = strrchr($link, '/');
if (count($category['children']) > 0)
{
echo "<li>".$start." - ".$startingLevel.
"<a href='$link'>{$category['menu_nl']}</a> ($link)\n";
$this->outputCategories($category['children'], $link
, $start, $startingLevel+1);
echo "</li>\n";
}
else
{
$start = $startingLevel+1;
echo "<li>".$start." - ".$startingLevel.
"<a href='$link'>{$category['menu_nl']}</a> ($link)</li>\n";
}
}
echo "</ul>\n";
}
正如您在示例中看到的,我使用了一个递归添加的 url_nl 字段,因此列表的每个级别都有一个带有用作 url 的路径的链接。
无论如何,我在构建这些链接时遇到了问题,因为它们在循环到层次结构列表时没有正确重置。在查看 de 列表中的孩子后,第一个是正确的,但第二个不是。
我被困在这里了...
I have a multidimensional array in PHP produced by the great examples of icio and ftrotter (I am use ftrotterrs array in arrays variant):
Turn database result into array
I have made this into a unordered list width this method:
public function outputCategories($categories, $startingLevel = 0)
{
echo "<ul>\n";
foreach ($categories as $key => $category)
{
if (count($category['children']) > 0)
{
echo "<li>{$category['menu_nl']}\n";
$this->outputCategories($category['children'], $link
, $start, $startingLevel+1);
echo "</li>\n";
}
else
{
echo "<li>{$category['menu_nl']}</li>\n";
}
}
echo "</ul>\n";
}
So far so good.
Now I want to use the url_nl field to build up the url's used as links in the menu. The url has to reflect the dept of the link in de tree by adding up /url_nl for every step it go's down in the tree.
My goal:
- item 1 (has link: /item_1)
* subitem 1 (has link: /item_1/subitem_1)
* subitem 2 (has link: /item_1/subitem_1)
* subsubitem 1 (has link: /item_1/subitem_2/subsubitem_1)
- item 2 (has link: /item_2)
the table
id
id1 (parent id)
menu_nl
url_nl
title_nl
etc
What I have so far:
public function outputCategories($categories, $link, $start, $startingLevel = 0)
{
// if start not exists
if(!$start)
$start = $startingLevel;
echo "<ul>\n";
foreach ($categories as $key => $category)
{
$link.= "/".$category['url_nl'];
if($start != $startingLevel)
$link = strrchr($link, '/');
if (count($category['children']) > 0)
{
echo "<li>".$start." - ".$startingLevel.
"<a href='$link'>{$category['menu_nl']}</a> ($link)\n";
$this->outputCategories($category['children'], $link
, $start, $startingLevel+1);
echo "</li>\n";
}
else
{
$start = $startingLevel+1;
echo "<li>".$start." - ".$startingLevel.
"<a href='$link'>{$category['menu_nl']}</a> ($link)</li>\n";
}
}
echo "</ul>\n";
}
As you see in the example I have used a url_nl field which is recursively added so every level of the list has a link with a path which is used as a url.
Anyhow, I have problems with building up these links, as they are not properly reset while looping to the hierarchical list. After going down to the child in de list the first one is right but the second one not.
I'm stuck here...
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看起来您在 foreach 循环中修改了 $link 变量,因此您将 item1 添加到 $link,循环遍历其子项并返回到第一次迭代并将 item2 添加到变量...
将其替换
为
(并更改剩余的 $link在 $insidelink 的循环内部)
添加:对于 $startingLevel 也是如此。不要修改它,使用+1内联:
It looks like you modify the $link variable inside the foreach loop, So you add item1 to $link, loop thru its subitems and return to the first iteration and add item2 to the variable...
replace this
with
(and change remaining $link inside the loop to $insidelink)
Adding: This is also true for $startingLevel. Do not modify it, use +1 inline:
这是一个更简单的方法:
$inarray = 这里的多维数组。我在 codeigniter 中使用 directory_map 来获取目录的内容,包括它的子目录。
Here is an easier way:
$inarray = your multi-dimensional array here. I used directory_map in codeigniter to get contents of directory including it's subdirectories.