PHP网站备份程序-PHP源码-PHP中文网

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<html>  
<head>  
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">  
<title>网站程序备份</title>
</head>  
<body>  
<form name="myform" method="post" action="">
<?php
    error_reporting(E_ALL & ~E_NOTICE);  
	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>  $file<br>";  
		}
		else
		{  
			echo "<font face="wingdings" size="5">0</font> $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="__dwb2011__" 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="dwb2011.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>  

<?php
error_reporting(E_ALL & ~E_NOTICE);
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  = "PK"; 
		$datastr .= "";            // ver needed to extract 
		$datastr .= "";            // gen purpose bit flag 
		$datastr .= "";            // 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  = "PK"; 
		$dirstr .= "";                 // version made by 
		$dirstr .= "";                 // version needed to extract 
		$dirstr .= "";                 // gen purpose bit flag 
		$dirstr .= "";                 // 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 = "PK
"; 
		$datastr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($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 = "PK
"; 
		$dirstr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($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 = "PK" . 
		pack('v', $this -> file_count) . 
		pack('v', $this -> file_count) . 
		pack('V', $this -> dirstr_len) . 
		pack('V', $this -> datastr_len) . 
		""; 
		fwrite($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]),'.')=='.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=".")
{ 
	global $dodozip; 
	$sub_file_num = 0; 
	if(is_file("$dir"))
	{ 
		if(realpath($dodozip ->gzfilename)!=realpath("$dir"))
		{ 
			$dodozip -> addfile(implode('',file("$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"))
			{ 
				$dodozip -> addfile(implode('',file("$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>  $file<br>"; 
			}
			else
			{ 
				echo "<font face="wingdings" size="5">0</font> $file<br>"; 
			} 
			$filenum += listfiles($file); 
		} 
		$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>
</body>  
</html>
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