PHP网站备份程序代码分享

效果图:

PHP代码

复制代码 代码如下:

网站程序备份

error_reporting(E_ALL & ~E_NOTICE);

ini_set('memory_limit', '2048M');

echo "选择要压缩的文件或目录：
";

$fdir = opendir('./');

while($file=readdir($fdir))

{

if($file=='.'|| $file=='..')

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)

function selrev()

{

with(document.myform)

{

for(i=0;i

{

thiselm = elements[i];

if(thiselm.name.match(/dfile\[]/))

thiselm.checked = !thiselm.checked;

}

}

}

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 = "\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);

}

}

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

{

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...
";

$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.
";

}

}

?>

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