磁盘目录树（EXT-js）

      <?php
// from php manual page
function formatBytes($val, $digits = 3, $mode = "SI", $bB = "B"){ //$mode == "SI"|"IEC", $bB == "b"|"B"
   $si = array("", "K", "M", "G", "T", "P", "E", "Z", "Y");
   $iec = array("", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi", "Yi");
   switch(strtoupper($mode)) {
       case "SI" : $factor = 1000; $symbols = $si; break;
       case "IEC" : $factor = 1024; $symbols = $iec; break;
       default : $factor = 1000; $symbols = $si; break;
   }
   switch($bB) {
       case "b" : $val *= 8; break;
       default : $bB = "B"; break;
   }
   for($i=0;$i<count($symbols)-1 && $val>=$factor;$i++)
       $val /= $factor;
   $p = strpos($val, ".");
   if($p !== false && $p > $digits) $val = round($val);
   elseif($p !== false) $val = round($val, $digits-$p);
   return round($val, $digits) . " " . $symbols[$i] . $bB;
}

$dir = isset($_REQUEST['lib'])&&$_REQUEST['lib'] == 'yui' ? '../../../' : '../../';
$dir = "D:\\"; 
$node = isset($_REQUEST['node'])?$_REQUEST['node']:"";
if(strpos($node, '..') !== false){
    die('Nice try buddy.');
}
$node = iconv('utf-8', 'gb2312', $node);
$nodes = array();
$d = dir($dir.$node);
$flag=false;
while($f = $d->read()){
    if($f == '.' || $f == '..' || substr($f, 0, 1) == '.')continue;
    $lastmod = date('M j, Y, g:i a',filemtime($dir.$node.'/'.$f));
    if(is_dir($dir.$node.'/'.$f)){
        $qtip = 'Type: Folder<br />Last Modified: '.$lastmod;
        $nodes[] = array('checked'=>$flag,'text'=>$f, 'id'=>$node.'/'.$f/*, 'qtip'=>$qtip*/, 'cls'=>'folder');
    }else{
        $size = formatBytes(filesize($dir.$node.'/'.$f), 2);
        $qtip = 'Type: JavaScript File<br />Last Modified: '.$lastmod.'<br />Size: '.$size;
        $nodes[] = array('checked'=>$flag,'text'=>$f, 'id'=>$node.'/'.$f, 'leaf'=>true/*, 'qtip'=>$qtip, 'qtipTitle'=>$f */, 'cls'=>'file');
    }
}
$d->close();

header("Content-Type: text/html; charset=utf-8");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");

function jsonText($array)
{
    $str = "{";
    foreach($array as $key=> $value)
    {    if($str != "{") $str.=",";     
        switch (gettype($value)) {
            case 'boolean':
                $value=$value ? 'true' : 'false';
                $str .= "$key: " .$value;
                break;
            default: 
                $value = str_replace("\"", "\\\"", $value);
                $str .= "$key: " ."\"$value\""; 
                break; 
        }
         
    }
    $str .= "}";
    
    return $str;
}
$strNode = "";

foreach($nodes as $key=>$value)
{
    $strNode .= jsonText($value) . ","; 
}
$strNode = sprintf('[%s]', iconv('gb2312', 'utf-8', rtrim($strNode, ',')));
echo $strNode;
?>