使用RecursiveDirectoryIterator

Question

可能重复：
Displaying folders and making links of those folders

我试图使用RecursiveDirectoryIterator创建一个简单的文件浏览器，但似乎无法推测出来...任何请帮助？

$cwd = '/path/to/somewhere'; 
if(isset($_GET['path']) && is_dir($cwd.$_GET['path'])) { 
    $cwd .= $_GET['path']; 
} 

$dir = new RecursiveDirectoryIterator($cwd); 
$iter = new RecursiveIteratorIterator($dir, RecursiveIteratorIterator::SELF_FIRST); 
while($iter->valid()) { 
    // skip unwanted directories 
    if(!$iter->isDot()) { 
     if($iter->isDir()) { 
      // output linked directory along with the number of files contained within 
      // for example: some_folder (13) 
     } else { 
      // output direct link to file 
     } 
    } 
    $iter->next(); 
} 

不知道这是最好的方法，但我的印象是RecursiveDirectoryIterator比均执行opendir（）和水珠（）方法快下我。

Answer 1

SELF_FIRST和CHILD_FIRST作为无关RecursiveDirectoryIterator但RecursiveIteratorIterator

如果运行

$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir), RecursiveIteratorIterator::SELF_FIRST); 

foreach ($iterator as $path) { 
    if ($path->isDir()) { 
     print($path->__toString() . PHP_EOL); 
    } else { 
     print($path->__toString() . PHP_EOL); 
    } 

你会得到

...\htdocs\lab\stockoverflow\css 
...\htdocs\lab\stockoverflow\css\a.css 
...\htdocs\lab\stockoverflow\css\b.css 
...\htdocs\lab\stockoverflow\css\c.css 
...\htdocs\lab\stockoverflow\css\css.php 
...\htdocs\lab\stockoverflow\css\css.run.php 

如果将其更改为RecursiveIteratorIterator::CHILD_FIRST

...\htdocs\lab\stockoverflow\css\a.css 
...\htdocs\lab\stockoverflow\css\b.css 
...\htdocs\lab\stockoverflow\css\c.css 
...\htdocs\lab\stockoverflow\css\css.php 
...\htdocs\lab\stockoverflow\css\css.run.php 
...\htdocs\lab\stockoverflow\css 

你能看出差别在于当前文件夹的位置吗