PHP网站备份程序-PHP源码

  
  
  

  
  

";  
	$fdir = opendir(&＃39;./&＃39;);  
	while($file=readdir($fdir))
	{  
		if($file==&＃39;.&＃39;|| $file==&＃39;..&＃39;) 
		continue;  
		echo " ";  
	
		if(is_file($file))
		{  
			echo "2  $file
";  
		}
		else
		{  
			echo "0 $file
";  
		}  
	}  
?>  


包含下列文件类型:
  

(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")



压缩文件保存到目录:  
  

(留空为本目录,必须有写入权限)


  
压缩文件名称:  
  

(.zip)


  


  
  
  
  

filefilters = explode(&＃39;|&＃39;,$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[&＃39;year&＃39;] <1980) 
		{  
			$timearray[&＃39;year&＃39;]    = 1980;  
			$timearray[&＃39;mon&＃39;]     = 1;  
			$timearray[&＃39;mday&＃39;]    = 1;  
			$timearray[&＃39;hours&＃39;]   = 0;  
			$timearray[&＃39;minutes&＃39;] = 0;  
			$timearray[&＃39;seconds&＃39;] = 0;  
		}  
		return (($timearray[&＃39;year&＃39;] - 1980) <<25) | ($timearray[&＃39;mon&＃39;] <<21) | ($timearray[&＃39;mday&＃39;] <<16) |  ($timearray[&＃39;hours&＃39;] <<11) | ($timearray[&＃39;minutes&＃39;] <<5) | ($timearray[&＃39;seconds&＃39;] >> 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 = &＃39;dodo.zip&＃39;)
	{  
		$this->gzfilename=$path;  
		$mypathdir=array();  

		do
		{  
			$mypathdir[] = $path = dirname($path);  
		}	while($path != &＃39;.&＃39;);  

		@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(&＃39;\\&＃39;, &＃39;/&＃39;, $name); 
		if(strrchr($name,&＃39;/&＃39;)==&＃39;/&＃39;) 
			return $this->adddir($name);
		if(!empty($this->filefilters))
		{
			if (!in_array(end(explode(".",$name)), $this->filefilters))
			{
				return;
			}
		}
		$dtime = dechex($this->unix2DosTime()); 
		$hexdtime = &＃39;\x&＃39; . $dtime[6] . $dtime[7] . &＃39;\x&＃39; . $dtime[4] . $dtime[5] . &＃39;\x&＃39; . $dtime[2] . $dtime[3] . &＃39;\x&＃39; . $dtime[0] . $dtime[1]; 
		eval(&＃39;$hexdtime = "&＃39; . $hexdtime . &＃39;";&＃39;); 

		$unc_len = strlen($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(&＃39;V&＃39;, $crc);             // crc32 
		$datastr .= pack(&＃39;V&＃39;, $c_len);           // compressed filesize 
		$datastr .= pack(&＃39;V&＃39;, $unc_len);         // uncompressed filesize 
		$datastr .= pack(&＃39;v&＃39;, strlen($name));    // length of filename 
		$datastr .= pack(&＃39;v&＃39;, 0);                // extra field length 
		$datastr .= $name; 
		$datastr .= $zdata; 
		$datastr .= pack(&＃39;V&＃39;, $crc);                 // crc32 
		$datastr .= pack(&＃39;V&＃39;, $c_len);               // compressed filesize 
		$datastr .= pack(&＃39;V&＃39;, $unc_len);             // uncompressed filesize 
		fwrite($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(&＃39;V&＃39;, $crc);            // crc32 
		$dirstr .= pack(&＃39;V&＃39;, $c_len);          // compressed filesize 
		$dirstr .= pack(&＃39;V&＃39;, $unc_len);        // uncompressed filesize 
		$dirstr .= pack(&＃39;v&＃39;, strlen($name) );  // length of filename 
		$dirstr .= pack(&＃39;v&＃39;, 0 );              // extra field length 
		$dirstr .= pack(&＃39;v&＃39;, 0 );              // file comment length 
		$dirstr .= pack(&＃39;v&＃39;, 0 );              // disk number start 
		$dirstr .= pack(&＃39;v&＃39;, 0 );              // internal file attributes 
		$dirstr .= pack(&＃39;V&＃39;, 32 );             // external file attributes - &＃39;archive&＃39; bit set 
		$dirstr .= pack(&＃39;V&＃39;,$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(&＃39;v&＃39;, $this -> file_count) . 
		pack(&＃39;v&＃39;, $this -> file_count) . 
		pack(&＃39;V&＃39;, $this -> dirstr_len) . 
		pack(&＃39;V&＃39;, $this -> datastr_len) . 
		"\x00\x00"; 
		fwrite($this->fp,$this->dirstr.$endstr); 
		fclose($this->fp); 
	} 
} 

if(!trim($_REQUEST[zipname])) 
	$_REQUEST[zipname] = "dodozip.zip"; 
else 
	$_REQUEST[zipname] = trim($_REQUEST[zipname]); 

if(!strrchr(strtolower($_REQUEST[zipname]),&＃39;.&＃39;)==&＃39;.zip&＃39;) 
	$_REQUEST[zipname] .= ".zip"; 

$_REQUEST[todir] = str_replace(&＃39;\\&＃39;,&＃39;/&＃39;,trim($_REQUEST[todir])); 

if(!strrchr(strtolower($_REQUEST[todir]),&＃39;/&＃39;)==&＃39;/&＃39;) 
	$_REQUEST[todir] .= "/"; 

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

function listfiles($dir=".")
{ 
	global $dodozip; 
	$sub_file_num = 0; 
	if(is_file("$dir"))
	{ 
		if(realpath($dodozip ->gzfilename)!=realpath("$dir"))
		{ 
			$dodozip -> addfile(implode(&＃39;&＃39;,file("$dir")),"$dir"); 
			return 1; 
		} 
		return 0; 
	} 

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

		if(is_dir("$dir/$file"))
		{ 
			$sub_file_num += listfiles("$dir/$file"); 
		} 
		else 
		{ 
			if(realpath($dodozip ->gzfilename)!=realpath("$dir/$file"))
			{ 
				$dodozip -> addfile(implode(&＃39;&＃39;,file("$dir/$file")),"$dir/$file"); 
				$sub_file_num ++; 
			} 
		} 
	} 

	closedir($handle); 

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

	return $sub_file_num; 
} 

function num_bitunit($num)
{ 
	$bitunit=array(&＃39; B&＃39;,&＃39; KB&＃39;,&＃39; MB&＃39;,&＃39; GB&＃39;); 
	for($key=0;$key=pow(2,10*$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...

"; 
		$filenum = 0; 
		foreach($_REQUEST[dfile] as $file)
		{ 
			if(is_file($file))
			{ 
				if(!empty($dodozip -> filefilters))
					if (!in_array(end(explode(".",$file)), $dodozip -> filefilters))
						continue;
				echo "2  $file
"; 
			}
			else
			{ 
				echo "0 $file
"; 
			} 
			$filenum += listfiles($file); 
		} 
		$dodozip -> createfile(); 

		echo "
压缩完成,共添加 $filenum 个文件.
$_REQUEST[todir]$_REQUEST[zipname] (".num_bitunit(filesize("$_REQUEST[todir]$_REQUEST[zipname]")).")"; 
	}
	else
	{ 
		echo "$_REQUEST[todir]$_REQUEST[zipname] 不能写入,请检查路径或权限是否正确.
"; 
	} 
}
?>