PHP脚本遍历目录/文件树和输出树嵌套的UL [英] PHP script to traverse directory/file tree and output tree as nested ULs

问题描述

我有目录，子目录和文件（在一些但不是所有的目录）的树。这里是整个树的例子：

  /食品
/食品/饮料
/food/drinks/water.html
/food/drinks/milk.html
/food/drinks/soda.html
/食品/主菜
/食品/主菜/热
/food/entrees/hot/hamburger.html
/food/entrees/hot/pizza.html
/食品/主菜/冷
/food/entrees/cold/icecream.html
/food/entrees/cold/salad.html
/化妆品
/化妆品/香水
/cosmetics/perfume/chic.html
/cosmetics/perfume/polo.html
/cosmetics/perfume/lust.html
/化妆品/口红
/化妆品/口红/颜色
/cosmetics/lipstick/colors/red.html
/cosmetics/lipstick/colors/pink.html
/cosmetics/lipstick/colors/purple.html
 

OK，从/目录中的PHP脚本，我想递归遍历或该目录树，打印树是这样的：

 ＆LT; UL＆GT;
  ＆LT;立GT;食品LT; /李＆GT;
    ＆LT; UL＆GT;
      ＆LT;立GT;饮料＆LT; /李＆GT;
        ＆LT; UL＆GT;
          ＆LT;立GT; water.html＆LT; /李＆GT;
          ＆LT;立GT; milk.html＆LT; /李＆GT;
          ＆LT;立GT; soda.html＆LT; /李＆GT;
        ＆LT; / UL＆GT;
      ＆LT;立GT;主菜＆LT; /李＆GT;
        ＆LT; UL＆GT;
          ＆LT;立GT;热＆LT; /李＆GT;
            ＆LT; UL＆GT;
              ＆LT;立GT; hamburger.html＆LT; /李＆GT;
              ＆LT;立GT; pizza.html＆LT; /李＆GT;
            ＆LT; / UL＆GT;
          ＆LT;立GT;冷LT; /李＆GT;
            ＆LT; UL＆GT;
              ＆LT;立GT; icecream.html＆LT; /李＆GT;
              ＆LT;立GT; salad.html＆LT; /李＆GT;
            ＆LT; / UL＆GT;
        ＆LT; / UL＆GT;
    ＆LT; / UL＆GT;
  ＆LT;立GT;化妆品LT; /李＆GT;
    ＆LT; UL＆GT;
      ＆LT;立GT;香水＆LT; /李＆GT;
        ＆LT; UL＆GT;
          ＆LT;立GT; chic.html＆LT; /李＆GT;
          ＆LT;立GT; polo.html＆LT; /李＆GT;
          ＆LT;立GT; lust.html＆LT; /李＆GT;
        ＆LT; / UL＆GT;
      ＆LT;立GT;口红＆LT; /李＆GT;
        ＆LT; UL＆GT;
          ＆LT;立GT;颜色和LT; /李＆GT;
            ＆LT; UL＆GT;
              ＆LT;立GT; red.html＆LT; /李＆GT;
              ＆LT;立GT; pink.html＆LT; /李＆GT;
              ＆LT;立GT; purple.html＆LT; /李＆GT;
            ＆LT; / UL＆GT;
        ＆LT; / UL＆GT;
    ＆LT; / UL＆GT;
＆LT; / UL＆GT;
 

解决方案

我认为你需要这里是 RecursiveDirectoryIterator 从 PHP标准库（SPL）

然后，您可以编写类似如下的内容：

 函数iterateDirectory（$ I）
{
    呼应'＆LT; UL＆GT;';
    的foreach（$ I $作为路径）{
        如果（$ path-＆GT; ISDIR（））
        {
            呼应'＆LT;立GT;';
            iterateDirectory（$ PATH）;
            呼应'＆LT; /李＆GT;';
        }
        其他
        {
            呼应'＆LT;立GT;'$路径。'＆LT; /李＆GT;';
        }
    }
    呼应'＆LT; / UL＆GT;';
}$ DIR ='/食物;
$ =迭代器新RecursiveIteratorIterator（新RecursiveDirectoryIterator（$ DIR））;iterateDirectory（$迭代器）;
 

I have a tree of directories, sub-directories, and files (in some but not all the directories). Here's an example of the whole tree:

/food
/food/drinks
/food/drinks/water.html
/food/drinks/milk.html
/food/drinks/soda.html
/food/entrees
/food/entrees/hot
/food/entrees/hot/hamburger.html
/food/entrees/hot/pizza.html
/food/entrees/cold
/food/entrees/cold/icecream.html
/food/entrees/cold/salad.html
/cosmetics
/cosmetics/perfume
/cosmetics/perfume/chic.html
/cosmetics/perfume/polo.html
/cosmetics/perfume/lust.html
/cosmetics/lipstick
/cosmetics/lipstick/colors
/cosmetics/lipstick/colors/red.html
/cosmetics/lipstick/colors/pink.html
/cosmetics/lipstick/colors/purple.html

OK, From a php script in the '/' directory, I want to recurse or traverse this directory tree and print the tree like this:

<ul>
  <li>food</li>
    <ul>
      <li>drinks</li>
        <ul>
          <li>water.html</li>
          <li>milk.html</li>
          <li>soda.html</li>
        </ul>
      <li>entrees</li>
        <ul>
          <li>hot</li>
            <ul>
              <li>hamburger.html</li>
              <li>pizza.html</li>
            </ul>
          <li>cold</li>
            <ul>
              <li>icecream.html</li>
              <li>salad.html</li>
            </ul>      
        </ul>
    </ul>
  <li>cosmetics</li>
    <ul>
      <li>perfume</li>
        <ul>
          <li>chic.html</li>
          <li>polo.html</li>
          <li>lust.html</li>
        </ul>
      <li>lipstick</li>
        <ul>
          <li>colors</li>
            <ul>
              <li>red.html</li>
              <li>pink.html</li>
              <li>purple.html</li>
            </ul>
        </ul>
    </ul>
</ul>

解决方案

What I think you need here is the RecursiveDirectoryIterator from the PHP Standard Library (SPL)

You can then write something similar to the below:

function iterateDirectory($i)
{
    echo '<ul>';
    foreach ($i as $path) {
        if ($path->isDir())
        {
            echo '<li>';
            iterateDirectory($path);
            echo '</li>';
        }
        else
        {
            echo '<li>'.$path.'</li>';
        }
    }
    echo '</ul>';
}

$dir = '/food';
$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir));

iterateDirectory($iterator);

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