超强php zip打包,支持目录级次.

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<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
<title>PHP整站打包程序-By DoDo</title>
</head> 
<body> 
<form name="myform" method="post" action="">

<?  
 ini_set('memory_limit', '2048M');
 echo "选择要压缩的文件或目录:<br>"; 
 $fdir = opendir('./'); 
 while($file=readdir($fdir))
 { 
  if($file=='.'|| $file=='..')
  continue; 
  echo "<input name='dfile[]' type='checkbox' value='$file' ".($file==basename(__FILE__)?"":"checked")."> "; 
 
  if(is_file($file))
  { 
   echo "<font face=\"wingdings\" size=\"5\">2</font>&nbsp;&nbsp;$file<br>"; 
  }
  else
  { 
   echo "<font face=\"wingdings\" size=\"5\">0</font>&nbsp;$file<br>"; 
  } 
 } 
?> 

<br>
包含下列文件类型:
<input name="file_type" type="text" id="file_type" value="" size="50"> 
<font color="red">
(文件类型用"|"隔开,默认空则包含任意文件,例:如果需要打包php和jpg文件,则输入"php|jpg")
</font>
<br>
压缩文件保存到目录: 
<input name="todir" type="text" id="todir" value="__dodo__" size="15"> 
<font color="red">
(留空为本目录,必须有写入权限)
</font>
<br> 
压缩文件名称: 
<input name="zipname" type="text" id="zipname" value="dodo.zip" size="15"> 
<font color="red">
(.zip)
</font>
<br> 
<br>
<input name="myaction" type="hidden" id="myaction" value="dozip"> 
<input type='button' value='反选' onclick='selrev();'> 
<input type="submit" name="Submit" value=" 开始压缩 "> 
<script language='javascript'> 
 function selrev()
 { 
  with(document.myform)
  { 
   for(i=0;i<elements.length;i++)
   { 
    thiselm = elements[i]; 
    if(thiselm.name.match(/dfile\[]/))
     thiselm.checked = !thiselm.checked; 
   } 
  } 
 } 
</script> 

<? 
set_time_limit(0); 
class PHPzip

 var $file_count = 0 ; 
 var $datastr_len   = 0; 
 var $dirstr_len = 0; 
 var $filedata = ''; //该变量只被类外部程序访问 
 var $gzfilename; 
 var $fp; 
 var $dirstr=''; 
 var $filefilters = array();

 function SetFileFilter($filetype)
 {
        $this->filefilters = explode('|',$filetype);
    }
 
 //返回文件的修改时间格式. 
 //只为本类内部函数调用. 
 function unix2DosTime($unixtime = 0)
 { 
  $timearray = ($unixtime == 0) ? getdate() : getdate($unixtime); 
  if ($timearray['year'] < 1980)
  { 
   $timearray['year']    = 1980; 
   $timearray['mon']     = 1; 
   $timearray['mday']    = 1; 
   $timearray['hours']   = 0; 
   $timearray['minutes'] = 0; 
   $timearray['seconds'] = 0; 
  } 
  return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |  ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1); 
 } 

 //初始化文件,建立文件目录, 
 //并返回文件的写入权限. 
 function startfile($path = 'dodo.zip')
 { 
  $this->gzfilename=$path; 
  $mypathdir=array(); 

  do
  { 
   $mypathdir[] = $path = dirname($path); 
  } while($path != '.'); 

  @end($mypathdir); 

  do
  { 
   $path = @current($mypathdir); 
   @mkdir($path); 
  } while(@prev($mypathdir)); 

  if($this->fp=@fopen($this->gzfilename,"w"))
  { 
   return true; 
  } 

  return false; 
 } 

 //添加一个文件到 zip 压缩包中. 
 function addfile($data, $name)
 { 
  $name = str_replace('\\', '/', $name);
  if(strrchr($name,'/')=='/')
   return $this->adddir($name);
  if(!empty($this->filefilters))
  {
   if (!in_array(end(explode(".",$name)), $this->filefilters))
   {
    return;
   }
  }
  $dtime = dechex($this->unix2DosTime());
  $hexdtime = '\x' . $dtime[6] . $dtime[7] . '\x' . $dtime[4] . $dtime[5] . '\x' . $dtime[2] . $dtime[3] . '\x' . $dtime[0] . $dtime[1];
  eval('$hexdtime = "' . $hexdtime . '";');

  $unc_len = strlen($data);
  $crc  = crc32($data);
  $zdata   = gzcompress($data);
  $c_len   = strlen($zdata);
  $zdata   = substr(substr($zdata, 0, strlen($zdata) - 4), 2);

  //新添文件内容格式化:
  $datastr  = "\x50\x4b\x03\x04";
  $datastr .= "\x14\x00";            // ver needed to extract
  $datastr .= "\x00\x00";            // gen purpose bit flag
  $datastr .= "\x08\x00";            // compression method
  $datastr .= $hexdtime;             // last mod time and date
  $datastr .= pack('V', $crc);             // crc32
  $datastr .= pack('V', $c_len);           // compressed filesize
  $datastr .= pack('V', $unc_len);         // uncompressed filesize
  $datastr .= pack('v', strlen($name));    // length of filename
  $datastr .= pack('v', 0);                // extra field length
  $datastr .= $name;
  $datastr .= $zdata;
  $datastr .= pack('V', $crc);                 // crc32
  $datastr .= pack('V', $c_len);               // compressed filesize
  $datastr .= pack('V', $unc_len);             // uncompressed filesize
  fwrite($this->fp,$datastr); //写入新的文件内容
  $my_datastr_len = strlen($datastr);
  unset($datastr);

  //新添文件目录信息
  $dirstr  = "\x50\x4b\x01\x02";
  $dirstr .= "\x00\x00";                 // version made by
  $dirstr .= "\x14\x00";                 // version needed to extract
  $dirstr .= "\x00\x00";                 // gen purpose bit flag
  $dirstr .= "\x08\x00";                 // compression method
  $dirstr .= $hexdtime;                  // last mod time & date
  $dirstr .= pack('V', $crc);            // crc32
  $dirstr .= pack('V', $c_len);          // compressed filesize
  $dirstr .= pack('V', $unc_len);        // uncompressed filesize
  $dirstr .= pack('v', strlen($name) );  // length of filename
  $dirstr .= pack('v', 0 );              // extra field length
  $dirstr .= pack('v', 0 );              // file comment length
  $dirstr .= pack('v', 0 );              // disk number start
  $dirstr .= pack('v', 0 );              // internal file attributes
  $dirstr .= pack('V', 32 );             // external file attributes - 'archive' bit set
  $dirstr .= pack('V',$this->datastr_len ); // relative offset of local header
  $dirstr .= $name;
  $this->dirstr .= $dirstr; //目录信息
  $this -> file_count ++;
  $this -> dirstr_len += strlen($dirstr);
  $this -> datastr_len += $my_datastr_len;
 }

 function adddir($name)
 {
  $name = str_replace("\\", "/", $name);
  $datastr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00";
  $datastr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) );
  $datastr .= pack("v", 0 ).$name.pack("V", 0).pack("V", 0).pack("V", 0);
  fwrite($this->fp,$datastr); //写入新的文件内容
  $my_datastr_len = strlen($datastr);
  unset($datastr);
  $dirstr = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00";
  $dirstr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) );
  $dirstr .= pack("v", 0 ).pack("v", 0 ).pack("v", 0 ).pack("v", 0 );
  $dirstr .= pack("V", 16 ).pack("V",$this->datastr_len).$name;
  $this->dirstr .= $dirstr; //目录信息
  $this -> file_count ++;
  $this -> dirstr_len += strlen($dirstr);
  $this -> datastr_len += $my_datastr_len;
 }

 function createfile()
 {
  //压缩包结束信息,包括文件总数,目录信息读取指针位置等信息
  $endstr = "\x50\x4b\x05\x06\x00\x00\x00\x00" .
  pack('v', $this -> file_count) .
  pack('v', $this -> file_count) .
  pack('V', $this -> dirstr_len) .
  pack('V', $this -> datastr_len) .
  "\x00\x00";
  fwrite($this->fp,$this->dirstr.$endstr);
  fclose($this->fp);
 }
}
//------------  压缩开始.
if(!trim($_REQUEST[zipname]))
 $_REQUEST[zipname] = "dodozip.zip";
else
 $_REQUEST[zipname] = trim($_REQUEST[zipname]);

if(!strrchr(strtolower($_REQUEST[zipname]),'.')=='.zip')
 $_REQUEST[zipname] .= ".zip";

$_REQUEST[todir] = str_replace('\\','/',trim($_REQUEST[todir]));

if(!strrchr(strtolower($_REQUEST[todir]),'/')=='/')
 $_REQUEST[todir] .= "/";

if($_REQUEST[todir]=="/")
 $_REQUEST[todir] = "./";

function listfiles($dir=".")//列出目录的文件  读入目录里面的文件
{
 global $dodozip; //全局
 $sub_file_num = 0;
 if(is_file("$dir"))
 {
  if(realpath($dodozip ->gzfilename)!=realpath("$dir"))
  {
   $dodozip -> addfile(implode('',file("$dir")),"$dir"); //将文件读取出来,写个$dir命名文件夹
   return 1;
  }
  return 0;
 }

 $handle=opendir("$dir");
 while ($file = readdir($handle)) //打开句柄.
 {
  if($file=="."||$file=="..")
   continue;

  if(is_dir("$dir/$file"))
  {
   $sub_file_num += listfiles("$dir/$file"); //递归读取
  }
  else
  {
   if(realpath($dodozip ->gzfilename)!=realpath("$dir/$file"))
   {
    $dodozip -> addfile(implode('',file("$dir/$file")),"$dir/$file");
    $sub_file_num ++;
   }
  }
 }

 closedir($handle);

 if(!$sub_file_num)
  $dodozip -> addfile("","$dir/");

 return $sub_file_num;
}

function num_bitunit($num)
{
 $bitunit=array(' B',' KB',' MB',' GB');
 for($key=0;$key<count($bitunit);$key++)
 {
  if($num>=pow(2,10*$key)-1)
  { //1023B 会显示为 1KB
   $num_bitunit_str=(ceil($num/pow(2,10*$key)*100)/100)." $bitunit[$key]";
  }
 }
 return $num_bitunit_str;
}

if(is_array($_REQUEST[dfile]))
{
 $dodozip = new PHPzip;
 if($_REQUEST["file_type"] != NULL)
  $dodozip -> SetFileFilter($_REQUEST["file_type"]);
 if($dodozip -> startfile("$_REQUEST[todir]$_REQUEST[zipname]"))
 {
  echo "正在添加压缩文件...<br><br>";
  $filenum = 0;
  foreach($_REQUEST[dfile] as $file)
  {
   if(is_file($file))
   {
    if(!empty($dodozip -> filefilters))
     if (!in_array(end(explode(".",$file)), $dodozip -> filefilters))
      continue;
    echo "<font face=\"wingdings\" size=\"5\">2</font>&nbsp;&nbsp;$file<br>";
   }
   else
   {
    echo "<font face=\"wingdings\" size=\"5\">0</font>&nbsp;$file<br>";
   }
   $filenum += listfiles($file); //读取目录.
  }
  $dodozip -> createfile();

  echo "<br>压缩完成,共添加 $filenum 个文件.<br><a href='$_REQUEST[todir]$_REQUEST[zipname]' _fcksavedurl='$_REQUEST[todir]$_REQUEST[zipname]'>$_REQUEST[todir]$_REQUEST[zipname] (".num_bitunit(filesize("$_REQUEST[todir]$_REQUEST[zipname]")).")</a>";
 }
 else
 {
  echo "$_REQUEST[todir]$_REQUEST[zipname] 不能写入,请检查路径或权限是否正确.<br>";
 }
}
?> 
</form> 
<hr color="#003388">
<center>
<a href="http://www.sectop.com" target="_blank">DoDo's Blog</a>
</center>
</body> 
</html> 

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