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简易文件管理系统

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我学习PHP做的第一个程序是文件管理，现在拿出来给大家，有什么缺点请指出来，这样有利于大家的学习和进步。也希望能对新手有所帮助。

index.php

<?php
if(isset($_GET['path']) && strlen(trim($_GET['path']))!=0){
    $dir = $_GET['path'];
}else{
    $dir = "/";
}
$pageSize = 20;  //
$pageNum = 1;  //
$pageTitle = 1;  //
$fileTitle = 0;  //
$folderTitle = 0; //
$currFileNum = 0; //
$currFolerNum = 0; //

if(isset($_GET['pagenum']))$pageNum = $_GET['pagenum'];
if($pageNum<1)$pageNum=1;
//echo $pageNum;
?>
<html>
<head>
<title>File Administrator System</title>
<script language="javascript">
<!--
function ReName(dir,filename){
 var newName;
 //return false;
    newName = prompt("Input the new name( include the suffix, such as\".Htm\".)", filename);
 if(newName == null)return false;
 if(newName.length<4){
  alert("The document is illegal, pleasing input afresh!!!");
  return false;
 }
 var cmd = "cmd.php?cmd=rename&old="+dir+filename+"&new="+dir+newName;
 var WinId=window.open(cmd, 'popUpWin', "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=no,width=200,height=200");
 if (WinId && WinId.open && !WinId.close){
  return false;
 }else{
  //WinId.close();
  location.reload();
 }
}
function Del(cmd,dir){
 var cmd = "cmd.php?cmd="+cmd+"&dir="+dir;
 //alert(cmd);
 var WinId=window.open(cmd, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=no,width=200,height=200');
 if (WinId && WinId.open && !WinId.close){
  return false;
 }else{
  //WinId.close();
  location.reload();
 }
}
function checkform(){
 var strPath = new String(document.upfileform.upfile.value);
 if(strPath.length < 5){
  alert("First, choose the top that want the document spread, then click the top spreads!!!");
  document.upfileform.upfile.focus();
  return false;
 }else{
  var fileName;
  fileName = prompt("Top that input document after spreading, include the suffix, such as'.Htm', if the document is by name empty, then will ascend to spread by the source document."," ");
  document.upfileform.up.value = fileName;
  document.upfileform.action = "up.php";
  document.upfileform.submit();
 }//end if
 
}
function newFolder(dir)
{
 var newName;
    newName = prompt("Input the document that to establish clip the name!!!","newFolder");
 if(newName == null)return false;
 var cmd = "cmd.php?cmd=mkdir&dir=" + dir + newName;
 var WinId = window.open(cmd, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=no,width=200,height=200');
 
 if (WinId && WinId.open && !WinId.close){
  pa = "<div>Builder folder defeated.</div>"
  WinId.document.write("");
  WinId.document.close();
  WinId.document.write(pa);
 }else{
  //WinId.close();
  location.reload();
 }
}
function downFile(filePath)
{
 WinId = window.open("downFile.php?path="+filePath);
}
//-->
</script>
<style type="text/css">

body {
 margin-left: 0px;
 margin-top: 5px;
 margin-right: 0px;
 margin-bottom: 0px;
}
A:link {
 TEXT-DECORATION: none;
 color: #000000;
}
A:visited {
 COLOR: #999999;
 TEXT-DECORATION: none
}
A:active {
 COLOR: #CCCCCC;
 TEXT-DECORATION: none
}
A:hover {
 COLOR: #696969;
 TEXT-DECORATION: none
}
.tab {
 border-top-width: 1px;
 border-right-width: 1px;
 border-bottom-width: 1px;
 border-left-width: 1px;
 border-top-style: dashed;
 border-right-style: dashed;
 border-bottom-style: dashed;
 border-left-style: dashed;
 border-top-color: #CCCCCC;
 border-right-color: #666666;
 border-bottom-color: #666666;
 border-left-color: #CCCCCC;
 font-size: 12px;
 font-weight: normal;
 color: #000000;
 text-decoration: none;
 padding-top: 1px;
 padding-right: 1px;
 padding-bottom: 1px;
 padding-left: 1px;

}
.txt {
 font-size: 12px;
 font-weight: normal;
 color: #000000;
 text-decoration: none;
}
.style1 {
 font-family: Geneva, Arial, Helvetica, sans-serif;
 font-weight: bold;
 font-size: 18px;
}
</style>
</head>

<body class="txt">
<center>
   <span class="style1">File Administrator System
   </span> 
   <table width="770" border="0" cellpadding="3" cellspacing="1" bgcolor="#0099CC">
    <tr>
      <td><b><font color="#FFFFFF"><?php echo dirname($dir);?></font></td>
    </tr>
    <tr>
      <td height="78" align="center" bgcolor="#eeffff" class="txt">
 <table width="740" border="0" cellpadding="1" cellspacing="1" background="ba.gif">
          <tr align="center" bgcolor="#FFFFdd" class="txt">
            <td width="15"></td>
            <td><b>File Name</b></td>
     <td width="30"><b>Type</b></td>
     <td width="60"><b>Size</b></td>
     <td width="160"><b>Edit Time</b></td>
            <td colspan="3"><b>Option</b></td>
          </tr>
<?php
$rowcolor=1;
//echo "http://" . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']). "/" ;
if ($handle = @opendir($dir)) {
    while (false !== ($file = @readdir($handle))) {
  if(@filetype($dir.$file)=="file"){
   $currfileNum++;
  }else{
   $currfolderNum++;
  }
        if (($currfileNum+$currfolderNum)<=$pageNum*$pageSize && ($currfileNum+$currfolderNum)>($pageNum-1)*$pageSize) {  //
   $rowcolor+=1;  //
   if($rowcolor%2)
    $color="#FFE4E1";
   else
    $color="#ffffff";
   
?>
          <tr bgcolor=<?php echo $color;?> class="txt">
            <td align="right"><?php echo $currfileNum + $currfolderNum;?><img src="RedArrow.gif" width="4" height="7"></td>
            <td><?php
  if(substr($dir,-1)!="/" && substr($dir,-2)!=".." && substr($dir,-1)!="." && substr($dir,-1)!="\\")$dir.="/";
  if($file=="."){
   if(substr($dir,-1)=="/")$dirTemp = substr($dir,0,strlen($dir)-1);
   $dirTemp = substr($dirTemp,0,strrpos($dirTemp,"/"));
   if($dirTemp=="")$dirTemp="/";
   echo "<a href=index.php?path=".urlencode($dirTemp)." title='Click Up Folder'><font color=#696933>";
  }elseif($file==".."){
   echo "<a href=index.php?path=".urlencode($dir)." title='Click Reload'><font color=#696933>";
  }elseif(filetype($dir.$file)=="file"){
   ?><div onclick='downFile("<?php echo $dir.$file ;?>")' style="cursor:hand" title="Click Down File"><?php
  }else{
    $fire.="/";
   echo "<a href=index.php?path=".urlencode($dir).urlencode($file)." title='Click Into'><font color=#000000>";
  }echo $file."</font></a>";
  //echo "&nbsp;&nbsp;&nbsp;".filetype($dir.$file)."</td>";
  echo "</td><td align=right>";
  echo @filetype($dir.$file);
  echo "</td>";
  $temp = @filesize($dir.$file);
  $Fs ="b";
  if($temp<800) {
   $Fs ="b";
   //echo $temp."b<br>";
  }else{
   $temp = $temp/1024;
   if($temp<600) {
    $Fs ="Kb";
    //echo $temp."Kb<br>";
   }else{
    $temp = $temp/1024;
    if($temp<600) {
     $Fs ="Mb";
     //echo $temp."Mb<br>";
    }else{
     $temp = $temp/1024;
     if($temp<600) {
      $Fs ="Gb";
      //echo $temp."Gb<br>";
     }//end if
    }//end if
   }//end if
  }//end if
  if(filetype($dir.$file)=="file")$ot = sprintf("%0.2f",$temp).$Fs;
  ?>
     <td align="right"><?php echo $ot;$ot=Null;?></td>
     <td align="center"><?php echo date ("Y-m-d H:i:s",@filectime($dir.$file));?></td>
            <td align=center width="35"><div onclick='Del("<?php echo filetype($dir.$file)=="file"?"del":"rmdir" ;?>","<?php echo $dir.$file ;?>")' style="cursor:hand">Kill</div></td>
            <td align=center width="35"><div onclick='ReName("<?php echo $dir ;?>","<?php echo $file ;?>")' style="cursor:hand">ReName</div></td>
            <td align=center width="35"><?php if(filetype($dir.$file)=="file"){?><div onclick='downFile("<?php echo $dir.$file ;?>")' style="cursor:hand" title="Click Down File">Load</div><?php }?></td>
          </tr>
<?php
  }//end if
 }//end while
 
 $pageTitle = ceil(($currfileNum + $currfolderNum)/$pageSize);
}else{
 echo "<center><font color=red>error: not the folder.</font></center>";
 exit();
}//end if (opendir)
?>
<form name="upfileform" enctype="multipart/form-data" method="post" target="_blank">
          <tr bgcolor=#ffffdd class="txt">
            <td align="right"></td>
            <td align="center">
              <input name="upfile" type="file" class="tab" id="upfile" style="background-color:#fffafa ;font-size:12px ;height:18" size="46">
              <input type="hidden" name="up" id="up" value="up">
     <input type="hidden" name="dir" id="dir" value="<?php echo $dir ;?>">
            <td align="center">
            <input type="button" class="tab" style="background-color:#fffafa ;cursor:hand;font-size:12px ;height:18" onClick="checkform()" value="Up File">
            </td>
   <td align="center">
   <div class="tab" style="background-color:#fffafa ;font-size:12px ;height:18;width:48;text-align:center;cursor:hand" onClick="location.reload()">Reload</div>
   </td>
            <td align="center"><div style="background-color:fffafa ;cursor:hand;text-align:center;height:18;width:120" class="tab"><?php echo date("Y-m-d H:i:s");?></div></td>
            <td colspan="3" align=center>
              <div onClick='newFolder("<?php echo $dir ;?>")' style="background-color:#fffafa ;cursor:hand;font-size:12px ;height:18;width:80" class="tab">New Folder</div>
            </td>
            </tr>
 </form>
        </table>
  <?php echo $currfileNum;?>File<b> /\ </b>
  <?php echo $currfolderNum;?>Folder<b> /\ </b>
  <?php echo $pageTitle;?>Page<b> /\ </b>
  <?php echo $pageSize;?>/page<b> /\ </b>
  <?php if($pageNum>1){?>
  <a href="index.php?path=<?php echo $dir;?>&pagenum=1">First</a><b>/\</b>
  <a href="index.php?path=<?php echo $dir;?>&pagenum=<?php echo $pageNum-1;?>">Prev</a><b> /\ </b>
  <?php }else{?>
  First<b> /\ </b>
  Prev<b> /\ </b>
  <?php }if($pageNum<$pageTitle){?>
  <a href="index.php?path=<?php echo $dir;?>&pagenum=<?php echo $pageNum+1;?>">Next</a><b> /\ </b>
  <a href="index.php?path=<?php echo $dir;?>&pagenum=<?php echo $pageTitle;?>">End</a>
  <?php }else{?>
  Next<b> /\ </b>
  End
  <?php }?>
   </td>
    </tr>
  </table>
  No Copyright; Spreed freedom; Cherish the labor; People Long Live
</center>
</body>
</html>

cmd.php

<?php
if(isset($_GET['cmd'])){
    if($_GET['cmd'] == "copy"){
 $source = $_GET['from'];
 $dest = $_GET['to'];
 if(copy($source, $dest)){
     echo "Copy file scceed!!!";
 }else{
     echo "Copy file defeated!!!";
 }
    }
    if($_GET['cmd'] == "del"){
 $dir = $_GET['dir'];
 if(unlink($dir)){
     echo "Delete scceed.file:\"".$dir."\"";
 }else{
     echo "Delete file defeated!!!";
 }
    }
    if($_GET['cmd'] == "stat"){
 $dir = $_GET['dir'];
 if($arr=stat($dir)){
     echo "<pre>";
     echo print_r($arr);
     echo "</pre>";
 }else{
     echo " No the Folder!!!";
 }
    }
    if($_GET['cmd'] == "mkdir"){
 $dir = $_GET['dir'];
 $mode = $_GET['mode'];
 if(@mkdir($dir)){
     echo "Scceed builded folder:\"".$dir."\"";
 }else{
     echo "Defeated builded folder";
 }
    }
    if($_GET['cmd'] == "file"){
 $dir = $_GET['dir'];
 if($arr=@file($dir)){
     echo "<pre>";
     echo print_r($arr);
     echo "</pre>";
 }else{
     echo "No the File!!!";
 }
    }
    if($_GET['cmd'] == "rename"){
 $old = $_GET['old'];
 $new = $_GET['new'];
 if(rename($old,$new)){
     echo "Scceed Run,old name:\"".$old."\",rename:\"".$new."\"";
 }else{
     echo "Defeated!!!";
 }
    }
    if($_GET['cmd'] == "rmdir"){
 $dir = $_GET['dir'];
 if(rmdir($dir)){
     echo "Scceed Run,\"".$dir."\"deleted.";
 }else{
     echo "Defeated";
 }
    }
}
?>

downFile.php

<?php
if(isset($_GET['path'])){
 $path = ($_GET['path']);
 if(file_exists(temp)){
  //echo "Here is a folder:temp.<br>";
 }else{
  echo "Here is not foler:temp<br>";
  mkdir(temp);
  echo (file_exists(temp))?"Scceed builder new folder \"temp\".<br>":"Defeated builder new folder<br>";
 }//end if
 if ($handle = opendir("temp")) {
 echo "hand<br>";
  while (false !== ($file = @readdir($handle))) {//Scan folder "temp"
   if(file_exists("temp/".$file) && trim($file)!="." && trim($file)!=".."){ //Judge whether document exsits or not
    if(date("d",@filectime("temp/".$file))!=date("d") || date("H",@filectime("temp/".$file))!=date("H") || date("i",@filectime("temp/".$file))-date("i")>10){ //
     unlink("temp/".$file);
     echo $file."<br>Date";
 echo date("d",@filectime("temp/".$file))."/";
 echo date("d")."<br>Hour";
 echo date("H",@filectime("temp/".$file))."/";
 echo date("H")."<br>Minute";
 echo date("i",@filectime("temp/".$file))."/";
 echo date("i")."<br>";
    }//end if    
   }//end if
  }//end while
 }//end if
 $fileName =  (substr($path,strrpos($path,"/")+1,strlen($path)));
 $dot = substr($fileName,-4);
 if($dot!=".zip" && $dot!=".rar" && $dot!=".exe" && $dot!=".chm" && $dot!=".com")$fileName .=".zip";
 $copyOK = copy($path,"temp/".$fileName);
 if($copyOK){
  $url = "http://" . $_SERVER['HTTP_HOST'] .dirname($_SERVER['PHP_SELF'])."/temp/".$fileName;
  echo ($url);
  header("location:".$url);
 }else{
  echo ("Server headles data mistake.");
 }//end if
}
//echo "<br>http://" . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']). "/" ;
?>

up.php

<?php
if(isset($_POST['up'])){
    $name = trim($_POST['up']);
 $uploaddir = $_POST['dir'];
 if(substr($uploaddir,-1) != "/") $uploaddir.="/";
 if($name == "") $name= $_FILES['upfile']['name'];
    $uploadfile = $uploaddir.$name;
 
 echo $uploadfile;
 echo "<br>".$_FILES['upfile']['tmp_name'];
 
    print "<pre>";
    if (@move_uploaded_file($_FILES['upfile']['tmp_name'], $uploadfile)) {
        print "Up file scceed!!!\n";
        print_r($_FILES);
  print "<script language=javascript>alert('Up file succeed.Breaking the page document would show.');</script>";
  echo $uploadfile;
  print "<script language=javascript>window.close();</script>";
    } else {
        print "<br>Up file defeated!!\n";
        print_r($_FILES);
    }
    print "</pre>";
}
?>

main.css

.tab {
 border-top-width: 1px;
 border-right-width: 1px;
 border-bottom-width: 1px;
 border-left-width: 1px;
 border-top-style: dashed;
 border-right-style: dashed;
 border-bottom-style: dashed;
 border-left-style: dashed;
 border-top-color: #CCCCCC;
 border-right-color: #666666;
 border-bottom-color: #666666;
 border-left-color: #CCCCCC;
 font-size: 12px;
 font-weight: normal;
 color: #000000;
 text-decoration: none;
 padding-top: 1px;
 padding-right: 1px;
 padding-bottom: 1px;
 padding-left: 1px;

}
.txt {
 font-size: 12px;
 font-weight: normal;
 color: #000000;
 text-decoration: none;
}
A:link {
 FONT-WEIGHT: COLOR: #000000; TEXT-DECORATION: none
}
A:visited {
 FONT-WEIGHT: COLOR: #ff00ff; TEXT-DECORATION: none
}
A:active {
 FONT-WEIGHT: COLOR: #00ccff; TEXT-DECORATION: none
}
A:hover {
 FONT-WEIGHT: COLOR: #696969; TEXT-DECORATION: none
}

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