时间：2021-07-01 10:21:17 帮助过：31人阅读
效果图:
PHP代码
代码如下:
- <br><html> <br><head> <br><meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <br><title>网站程序备份</title> <br></head> <br><body> <br><form name="myform" method="post" action=""> <br><?php <br>error_reporting(E_ALL & ~E_NOTICE); <br>ini_set('memory_limit', '2048M'); <br>echo "选择要压缩的文件或目录：<br>"; <br>$fdir = opendir('./'); <br>while($file=readdir($fdir)) <br>{ <br>if($file=='.'|| $file=='..') <br>continue; <br>echo "<input name='dfile[]' type='checkbox' value='$file' ".($file==basename(__FILE__)?"":"checked")."> "; <br>if(is_file($file)) <br>{ <br>echo "<font face=\"wingdings\" size=\"5\">2</font> $file<br>"; <br>} <br>else <br>{ <br>echo "<font face=\"wingdings\" size=\"5\">0</font> $file<br>"; <br>} <br>} <br>?> <br><br> <br>包含下列文件类型: <br><input name="file_type" type="text" id="file_type" value="" size="50"> <br><font color="red"> <br>(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") <br></font> <br><br> <br>压缩文件保存到目录: <br><input name="todir" type="text" id="todir" value="__dwb2011__" size="15"> <br><font color="red"> <br>(留空为本目录,必须有写入权限) <br></font> <br><br> <br>压缩文件名称: <br><input name="zipname" type="text" id="zipname" value="dwb2011.zip" size="15"> <br><font color="red"> <br>(.zip) <br></font> <br><br> <br><br> <br><input name="myaction" type="hidden" id="myaction" value="dozip"> <br><input type='button' value='反选' onclick='selrev();'> <br><input type="submit" name="Submit" value=" 开始压缩 "> <br><script language='javascript'> <br>function selrev() <br>{ <br>with(document.myform) <br>{ <br>for(i=0;i<elements.length;i++) <br>{ <br>thiselm = elements[i]; <br>if(thiselm.name.match(/dfile\[]/)) <br>thiselm.checked = !thiselm.checked; <br>} <br>} <br>} <br></script> <br><?php <br>error_reporting(E_ALL & ~E_NOTICE); <br>set_time_limit(0); <br>class PHPzip <br>{ <br>var $file_count = 0 ; <br>var $datastr_len = 0; <br>var $dirstr_len = 0; <br>var $filedata = ''; //该变量只被类外部程序访问 <br>var $gzfilename; <br>var $fp; <br>var $dirstr=''; <br>var $filefilters = array(); <br>function SetFileFilter($filetype) <br>{ <br>$this->filefilters = explode('|',$filetype); <br>} <br>//返回文件的修改时间格式. <br>//只为本类内部函数调用. <br>function unix2DosTime($unixtime = 0) <br>{ <br>$timearray = ($unixtime == 0) ? getdate() : getdate($unixtime); <br>if ($timearray['year'] < 1980) <br>{ <br>$timearray['year'] = 1980; <br>$timearray['mon'] = 1; <br>$timearray['mday'] = 1; <br>$timearray['hours'] = 0; <br>$timearray['minutes'] = 0; <br>$timearray['seconds'] = 0; <br>} <br>return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) | ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1); <br>} <br>//初始化文件,建立文件目录, <br>//并返回文件的写入权限. <br>function startfile($path = 'dodo.zip') <br>{ <br>$this->gzfilename=$path; <br>$mypathdir=array(); <br>do <br>{ <br>$mypathdir[] = $path = dirname($path); <br>} while($path != '.'); <br>@end($mypathdir); <br>do <br>{ <br>$path = @current($mypathdir); <br>@mkdir($path); <br>} while(@prev($mypathdir)); <br>if($this->fp=@fopen($this->gzfilename,"w")) <br>{ <br>return true; <br>} <br>return false; <br>} <br>//添加一个文件到 zip 压缩包中. <br>function addfile($data, $name) <br>{ <br>$name = str_replace('\\', '/', $name); <br>if(strrchr($name,'/')=='/') <br>return $this->adddir($name); <br>if(!empty($this->filefilters)) <br>{ <br>if (!in_array(end(explode(".",$name)), $this->filefilters)) <br>{ <br>return; <br>} <br>} <br>$dtime = dechex($this->unix2DosTime()); <br>$hexdtime = '\x' . $dtime[6] . $dtime[7] . '\x' . $dtime[4] . $dtime[5] . '\x' . $dtime[2] . $dtime[3] . '\x' . $dtime[0] . $dtime[1]; <br>eval('$hexdtime = "' . $hexdtime . '";'); <br>$unc_len = strlen($data); <br>$crc = crc32($data); <br>$zdata = gzcompress($data); <br>$c_len = strlen($zdata); <br>$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); <br>//新添文件内容格式化: <br>$datastr = "\x50\x4b\x03\x04"; <br>$datastr .= "\x14\x00"; // ver needed to extract <br>$datastr .= "\x00\x00"; // gen purpose bit flag <br>$datastr .= "\x08\x00"; // compression method <br>$datastr .= $hexdtime; // last mod time and date <br>$datastr .= pack('V', $crc); // crc32 <br>$datastr .= pack('V', $c_len); // compressed filesize <br>$datastr .= pack('V', $unc_len); // uncompressed filesize <br>$datastr .= pack('v', strlen($name)); // length of filename <br>$datastr .= pack('v', 0); // extra field length <br>$datastr .= $name; <br>$datastr .= $zdata; <br>$datastr .= pack('V', $crc); // crc32 <br>$datastr .= pack('V', $c_len); // compressed filesize <br>$datastr .= pack('V', $unc_len); // uncompressed filesize <br>fwrite($this->fp,$datastr); //写入新的文件内容 <br>$my_datastr_len = strlen($datastr); <br>unset($datastr); <br>//新添文件目录信息 <br>$dirstr = "\x50\x4b\x01\x02"; <br>$dirstr .= "\x00\x00"; // version made by <br>$dirstr .= "\x14\x00"; // version needed to extract <br>$dirstr .= "\x00\x00"; // gen purpose bit flag <br>$dirstr .= "\x08\x00"; // compression method <br>$dirstr .= $hexdtime; // last mod time & date <br>$dirstr .= pack('V', $crc); // crc32 <br>$dirstr .= pack('V', $c_len); // compressed filesize <br>$dirstr .= pack('V', $unc_len); // uncompressed filesize <br>$dirstr .= pack('v', strlen($name) ); // length of filename <br>$dirstr .= pack('v', 0 ); // extra field length <br>$dirstr .= pack('v', 0 ); // file comment length <br>$dirstr .= pack('v', 0 ); // disk number start <br>$dirstr .= pack('v', 0 ); // internal file attributes <br>$dirstr .= pack('V', 32 ); // external file attributes - 'archive' bit set <br>$dirstr .= pack('V',$this->datastr_len ); // relative offset of local header <br>$dirstr .= $name; <br>$this->dirstr .= $dirstr; //目录信息 <br>$this -> file_count ++; <br>$this -> dirstr_len += strlen($dirstr); <br>$this -> datastr_len += $my_datastr_len; <br>} <br>function adddir($name) <br>{ <br>$name = str_replace("\\", "/", $name); <br>$datastr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"; <br>$datastr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) ); <br>$datastr .= pack("v", 0 ).$name.pack("V", 0).pack("V", 0).pack("V", 0); <br>fwrite($this->fp,$datastr); //写入新的文件内容 <br>$my_datastr_len = strlen($datastr); <br>unset($datastr); <br>$dirstr = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"; <br>$dirstr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) ); <br>$dirstr .= pack("v", 0 ).pack("v", 0 ).pack("v", 0 ).pack("v", 0 ); <br>$dirstr .= pack("V", 16 ).pack("V",$this->datastr_len).$name; <br>$this->dirstr .= $dirstr; //目录信息 <br>$this -> file_count ++; <br>$this -> dirstr_len += strlen($dirstr); <br>$this -> datastr_len += $my_datastr_len; <br>} <br>function createfile() <br>{ <br>//压缩包结束信息,包括文件总数,目录信息读取指针位置等信息 <br>$endstr = "\x50\x4b\x05\x06\x00\x00\x00\x00" . <br>pack('v', $this -> file_count) . <br>pack('v', $this -> file_count) . <br>pack('V', $this -> dirstr_len) . <br>pack('V', $this -> datastr_len) . <br>"\x00\x00"; <br>fwrite($this->fp,$this->dirstr.$endstr); <br>fclose($this->fp); <br>} <br>} <br>if(!trim($_REQUEST[zipname])) <br>$_REQUEST[zipname] = "dodozip.zip"; <br>else <br>$_REQUEST[zipname] = trim($_REQUEST[zipname]); <br>if(!strrchr(strtolower($_REQUEST[zipname]),'.')=='.zip') <br>$_REQUEST[zipname] .= ".zip"; <br>$_REQUEST[todir] = str_replace('\\','/',trim($_REQUEST[todir])); <br>if(!strrchr(strtolower($_REQUEST[todir]),'/')=='/') <br>$_REQUEST[todir] .= "/"; <br>if($_REQUEST[todir]=="/") <br>$_REQUEST[todir] = "./"; <br>function listfiles($dir=".") <br>{ <br>global $dodozip; <br>$sub_file_num = 0; <br>if(is_file("$dir")) <br>{ <br>if(realpath($dodozip ->gzfilename)!=realpath("$dir")) <br>{ <br>$dodozip -> addfile(implode('',file("$dir")),"$dir"); <br>return 1; <br>} <br>return 0; <br>} <br>$handle=opendir("$dir"); <br>while ($file = readdir($handle)) <br>{ <br>if($file=="."||$file=="..") <br>continue; <br>if(is_dir("$dir/$file")) <br>{ <br>$sub_file_num += listfiles("$dir/$file"); <br>} <br>else <br>{ <br>if(realpath($dodozip ->gzfilename)!=realpath("$dir/$file")) <br>{ <br>$dodozip -> addfile(implode('',file("$dir/$file")),"$dir/$file"); <br>$sub_file_num ++; <br>} <br>} <br>} <br>closedir($handle); <br>if(!$sub_file_num) <br>$dodozip -> addfile("","$dir/"); <br>return $sub_file_num; <br>} <br>function num_bitunit($num) <br>{ <br>$bitunit=array(' B',' KB',' MB',' GB'); <br>for($key=0;$key<count($bitunit);$key++) <br>{ <br>if($num>=pow(2,10*$key)-1) <br>{ //1023B 会显示为 1KB <br>$num_bitunit_str=(ceil($num/pow(2,10*$key)*100)/100)." $bitunit[$key]"; <br>} <br>} <br>return $num_bitunit_str; <br>} <br>if(is_array($_REQUEST[dfile])) <br>{ <br>$dodozip = new PHPzip; <br>if($_REQUEST["file_type"] != NULL) <br>$dodozip -> SetFileFilter($_REQUEST["file_type"]); <br>if($dodozip -> startfile("$_REQUEST[todir]$_REQUEST[zipname]")) <br>{ <br>echo "正在添加压缩文件...<br><br>"; <br>$filenum = 0; <br>foreach($_REQUEST[dfile] as $file) <br>{ <br>if(is_file($file)) <br>{ <br>if(!empty($dodozip -> filefilters)) <br>if (!in_array(end(explode(".",$file)), $dodozip -> filefilters)) <br>continue; <br>echo "<font face=\"wingdings\" size=\"5\">2</font> $file<br>"; <br>} <br>else <br>{ <br>echo "<font face=\"wingdings\" size=\"5\">0</font> $file<br>"; <br>} <br>$filenum += listfiles($file); <br>} <br>$dodozip -> createfile(); <br>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]$_REQUEST[zipname]")).")</a>"; <br>} <br>else <br>{ <br>echo "$_REQUEST[todir]$_REQUEST[zipname] 不能写入,请检查路径或权限是否正确.<br>"; <br>} <br>} <br>?> <br></form> <br></body> <br></html> <br><p></p>