如何讀取/更改文件瀏覽目錄？

我在如何做到這一點方面存在着真正的脫節 - 部分原因是我對文件系統的工作經驗不足。我正在嘗試創建一個腳本，用於在文件夾下面導航文件。該文件通過列出目錄中的內容（又名「。」）來工作。我難以理解如何使它列出下面的文件夾的內容以及做到這一點的最佳方式。我的腳本將如何重新工作以適應此目標？如何讀取/更改文件瀏覽目錄？

[代碼]

// sets ordering variables 
$a = $_GET['a']; 

// are you allowed to delete? 
if($_SESSION['delete'] == "ON") { 
    $do_del = true; 
    } 
else { 
    $do_del = false; 
    } 

// scandir to opendir coversion from stackoverflow.com/questions/6823489/ 
$files_dir = "."; 
$dir_handle = opendir($files_dir); 
while ($dir_temp = readdir($dir_handle)) { 
    $arr_dir[] = $dir_temp; 
    } 
closedir($dir_handle); 


// function created by "acecream" on php.net; modified to include reverse sort 
function sortArray($array, $key, $reverse = false) 
    { 
    if(isset($array)) { 
     foreach ($array as $i => $k) 
      { $sort_values[$i] = $array[$i][$key]; } 

     if ($reverse == true) 
      { arsort ($sort_values); } 
     else 
      { asort ($sort_values); } 
     reset ($sort_values); 

     while (list ($arr_key, $arr_val) = each ($sort_values)) 
      { $sorted_arr[] = $array[$arr_key]; } 

     return $sorted_arr; 
     } 
    } 


foreach($arr_dir as $file) 
    { 
    if(!preg_match("/(_vti)|(_borders)|(_private)|(hidden)|(~_)|(\.php)/", $file) && ($file != ".") && ($file !="..")) 
     { 
     $full = "$files_dir/$file"; 

     $name = strval($file); 
     $size = sprintf("%u", filesize($full)); 
     $kind = pathinfo($file, PATHINFO_EXTENSION); // strval(end(explode(".", $file))); 
     $mtime = filemtime($full); // modify date 
     $ctime = filectime($full); // creation date 

     $arr_files[] = array($name, $size, $kind, $mtime, $ctime); 
     } 
    } 
$arr_count = count($arr_files); 

switch ($a) { 
    case 1 : $arr_files = sortArray($arr_files, 0); break; 
    case 2 : $arr_files = sortArray($arr_files, 0, true); break; 
    case 3 : $arr_files = sortArray($arr_files, 1); break; 
    case 4 : $arr_files = sortArray($arr_files, 1, true); break; 
    case 5 : $arr_files = sortArray($arr_files, 2); break; 
    case 6 : $arr_files = sortArray($arr_files, 2, true); break; 
    case 7 : $arr_files = sortArray($arr_files, 3); break; 
    case 8 : $arr_files = sortArray($arr_files, 3, true); break; 
    default: $arr_files = sortArray($arr_files, 3, true); break; 
    } 
unset($a); 

function myFileSize($value) { 
    // convert raw byte site to friendlier forms 
    if($value > 1000)  { $sizestr = round(($value/1024), 1) . " KB"; } 
     else    { $sizestr = "$value B"; } 
    if($value > 1000000) { $sizestr = round(($value/1048576), 1) . " MB"; } 
    if($value > 1000000000) { $sizestr = round(($value/1073741824), 1) . " GB"; } 
    return $sizestr; 
    } 
function myDate($value) { 
    $date = date("j M y G:i", $value); 
    return $date; 
    } 

if($arr_count > 0) 
    { 
    if($do_del == true) { 
     print "<form method=\"post\" action=\"./?d=delete\">\n"; 
     } 
     print "<table>\n"; 
     print "  <tr>\n"; 
     print "   <td>File Name</td>\n"; 
     print "   <td>Size</td>\n"; 
     print "   <td>Type</td>\n"; 
     print "   <td>Modified</td>\n"; 
     print "   <td>Created</td>\n"; 
    if($do_del == true) { 
     print "   <td>Delete?</td>\n"; 
     } 
     print "  </tr>\n"; 
     print "  <tr style=\"vertical-align: middle; background-color: #fff; border: 1px solid #000;\">\n"; 
     print "   <td>\n"; 
     print "    <a href=\"./?a=1\"><img src=\"./~_arr-asc.gif\" border=\"0\"></a>\n"; 
     print "    <a href=\"./?a=2\"><img src=\"./~_arr-dsc.gif\" border=\"0\"></a>\n"; 
     print "   </td>\n"; 
     print "   <td>\n"; 
     print "    <a href=\"./?a=3\"><img src=\"./~_arr-asc.gif\" border=\"0\"></a>\n"; 
     print "    <a href=\"./?a=4\"><img src=\"./~_arr-dsc.gif\" border=\"0\"></a>\n"; 
     print "   </td>\n";      
     print "   <td>\n"; 
     print "    <a href=\"./?a=5\"><img src=\"./~_arr-asc.gif\" border=\"0\"></a>\n"; 
     print "    <a href=\"./?a=6\"><img src=\"./~_arr-dsc.gif\" border=\"0\"></a>\n"; 
     print "   </td>\n"; 
     print "   <td>\n"; 
     print "    <a href=\"./?a=7\"><img src=\"./~_arr-asc.gif\" border=\"0\"></a>\n"; 
     print "    <a href=\"./?a=8\"><img src=\"./~_arr-dsc.gif\" border=\"0\"></a>\n"; 
     print "   </td>\n"; 
     print "   <td>&nbsp;</td>\n"; 
    if($do_del == true) { 
     print "   <td>&nbsp;</td>\n"; 
     } 
     print "  </tr>\n"; 

    for ($beat = 0; $beat < $arr_count; $beat++) 
     { 
     $name = $arr_files[$beat][0]; 
     $size = $arr_files[$beat][1]; 
     $ext = strtolower($arr_files[$beat][2]); 
     $mdate = $arr_files[$beat][3]; 
     $cdate = $arr_files[$beat][4]; 

     $size = myFileSize($size); 
     $mdate = myDate($mdate); 
     $cdate = myDate($cdate); 

     // pick the image for file type based on file extension 
     if(is_dir($name)) { 
      $pic = "~_folder.png"; 
      } 
     else { 
      $pic = "~_file.png"; 
      } 


     $url = "<a href=\"$files_dir/$name\">$name</a>"; // create hard link 

      print " <tr>\n"; 
      print "  <td style=\"width: 300px;\"><img src=\"./$pic\"> $url</td>\n"; 
      print "  <td style=\"width: 75px;\">$size</td>\n"; 
      print "  <td style=\"width: 50px;\">$ext</td>\n"; 
      print "  <td style=\"width: 150px;\">$mdate</td>\n"; 
      print "  <td style=\"width: 150px;\">$cdate</td>\n"; 
     if($do_del == true) { 
      print "  <td><input type=\"checkbox\" name=\"list[$files_dir/$name]\" value=\"ON\"></td>\n"; 
      } 
     print " </tr>\n"; 
     } 
    print "</table>\n"; 

    if($do_del == true) { 
     print " <p><input name=\"Submit1\" type=\"submit\" value=\"submit\">\n"; 
     print " <input name=\"Reset1\" type=\"reset\" value=\"reset\"></p>\n"; 
     print "</form>\n"; 
     } 
    } 
else 
    { 
    print "There are no files available for download."; 
    }

[/代碼]

來源

2012-04-25 greentiger

使你的腳本函數可以接受的路徑。

然後在while語句裏面if（is_dir（$ file））調用你的函數並傳給它$ file。

例如，

function myFileSize($value) {...} 
function myDate($value) {...} 

function list_contents($path) 
{ 
    $dir_name = $path; 
    . 
    . 
    . 
    $dir = opendir($path); 
    . 
    . 
    . 
    while ($file = readdir($dir)) { 
     // do some stuff 
     if (is_dir($file)) { 
      list_contents($file); 
     } 
    } 
}

取決於你想做的事，你將需要修改list_contents的輸出（）函數與遞歸的工作是什麼。你可以使用數組生成一些樹結構，然後打印樹出來以後，如：

// return an array representing tree structure 
function list_contents($path, &$tree) 
{ 
    // ... 
    while ($file = readdir($dir)) { 
     $tree[$path][] = $file; 
     if (is_dir($file)) { 
      list_contents($file, $tree[$path]); 
     } 
    } 

    return $tree; 
} 

function print_tree($tree) 
{ 
    // code to display array using tree structure 
} 

$path = '.'; 
$dir_name = $path; 

$tree_array = array(); 
$tree = list_contents($path, $tree_array) 

print_tree($tree);

或者你可以添加一個變量來計算的方法的級別數爲

function list_contents($path, $level = 0) 
{ 
    //... 
    // indent output text by $level number of tabs 
    while($file = readdir($dir) { 
     if (is_dir($file)) { 
      list_contents($file, $level++) 
     } 
    } 
} 

list_contents($path);

輸出會看起來像

> Root 
    > Folder1 in root 
    > Folder2 in root 
     > Folder1 in Folder2 
     > Folder2 in Folder2 
    > Folder3 in root 
     > Folder1 in Folder3 
       > Folder1 in Folder1/Folder3 
     > File1 in Folder1 
    > File1 in root 
    > File2 in root

作爲一個建議，我會採取相關的獲取文件信息或處理文件的任何功能，並把他們在自己的文件file_functions.p惠普，然後將其包括在腳本的頂部。

來源

2012-04-25 21:14:53

如何讀取/更改文件瀏覽目錄？

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