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一个目录类

一个目录类
唠叨 2004-03-01 15


<?
//目录操作基类
class FileDirectory {
  var
$servermode;
  var
$serverpath;    //web服务器目录
  
var $pagepath;    //当前页目录
  
var $path;        //当前目录
  
var $ffblk;        //用于存储有关文件的信息
  
function FileDirectory() {
    
set_time_limit(0);    //设置网页运行时间,0不限
    
$this->serverpath = $GLOBALS[DOCUMENT_ROOT]."/";
    
$this->path = $this->pagepath = dirname(eregi_replace("//","/",$GLOBALS[SCRIPT_FILENAME]))."/";
    if(
eregi("Win32",getenv("SERVER_SOFTWARE")))
      
$this->servermode = "WIN32";
  }
  function
first_dir() {
    return
dirname(eregi_replace("//","/",$GLOBALS[SCRIPT_FILENAME]));
  }
  
//获取文件信息
  
function file_info($filename) {
    
$ar[name] = $filename;
    
$ar[type] = filetype($filename);
    
$ar[read] = is_readable($filename);
    
$ar[write] = is_writeable($filename);
    
$ar[exec] = is_executable($filename);
    
$ar[time] = date("Y-m-d H:i:s",filemtime($filename));
    
$ar[size] = filesize($filename);
    
$ar[style] = ($ar[type]=="dir"?"d":"-")
              .(
$ar[read]?"r":"-")
              .(
$ar[write]?"w":"-")
              .(
$ar[exec]?"x":"-");
    return
$ar;
  }

  function
format_path($path){
    
$tar = split("/",$path);
    
$sar = split("/",$this->path);
    
$t = count($tar);
    
$s = count($sar);
    if(
$tar[$t-1] == "") $t--;
    if(
$sar[$s-1] == "") $s--;
    
$j = 0;
    while(
$tar[$j] == "..") {
      
$j++;
      
$s--;
    }
    
$p = "";
    for(
$i=0;$i<$s;$i++)
      
$p .= $sar[$i]."/";
    for(
$i=$j;$i<$t;$i++)
      if(
$tar[$i] != ".")
        
$p .= $tar[$i]."/";
    
$this->path = $p;
  }
  
//获取目录信息到数组,成功返回时$this->path为目录的全路径
  
function array_dir($pathname=".") {
    
$old = $this->path;
    if(
$this->servermode == "WIN32")
      
$path = str_replace("","/",$pathname);
    else
      
$path = $pathname;
    
$this->format_path($path);
    if(! (
$handle = @opendir($path))) {
      
$path = dirname($pathname);
      
$handle = opendir($path);
    }
    if(@
chdir($this->path)) {
      while (
$file = readdir($handle)) {
        
$ar[] = $this->file_info($file);
      }
    }else
      
$this->path = $old;
    
closedir($handle);
    return
$ar;
  }
}    
//FileDirectory定义结束

?>

<?
//目录对话框
class OpenFileDialog extends FileDirectory {
  var
$filter = array("*.*");
  function
Execute($path,$statpath) {
    if(
$path != "") {
      
chdir($statpath);
      
$this->path = $statpath;
      
$ar = $this->array_dir($path);
    }else
      
$ar = $this->array_dir(".");
    
array_multisort($ar);
echo
"
<style>
td{font-size:9pt;}
select{font-size:9pt;}
#box{border:3px outset #ffffff}
</style>
<form action="
;
echo
$GLOBALS[PHP_SELF];
echo
" method=POST>
<table bgcolor=#cccccc cellspacing=0 cellpadding=0>
<tr><td>
<table border=0 id=box>
<tr><td>
"
;
echo
"当前路径 ".$this->path."<br>n";
echo
"<input type=hidden name=statpath value="".$this->path."">n";

echo
"<select name=dirlist size=6 style="width:100px" onChange="this.form.submit()">n";
for(
$i=0;$i<count($ar);$i++)
  if(
$ar[$i][type] == "dir")
    if(
$ar[$i][name] == ".")
      echo
"<option selected>".$ar[$i][name]."n";
    else
      echo
"<option>".$ar[$i][name]."n";
echo
"</select>&nbsp;&nbsp;n";
echo
"<select size=6 style="width:100px">n";
for(
$i=0;$i<count($ar);$i++)
  if(
$ar[$i][type] == "file")
    echo
"<option>".$ar[$i][name]."n";
echo
"
</select>
</td></tr>
</table>
</td></tr>
</table>
</form>
"
;
  }
}    
//OpenFileDialog
?>

<?
//测试

$dir = new OpenFileDialog();
echo
"服务器类型 ".$dir->servermode."<br>";
echo
"服务器路径 ".$dir->serverpath."<br>";
echo
"当前页路径 ".$dir->pagepath."<br>";
echo
"当前路径 ".$dir->path."<br>";
$dir->Execute($dirlist,$statpath);
?>