PHP打包下载整个文件夹或多文件


有时候需要输出服务器上某个文件夹的全部文件，比如备份网站，用下面的PHP函数来实现。

函数库代码PHPZip为：(请复制以下代码保存，以供调用）

  1. <?php
  2. Class PHPZip{
  3. Private $StrPath="../../@UpLoad";
  4. Private $datasec=array();
  5. Private $ctrl_dir=array();
  6. Private $eof_ctrl_dir="\x50\x4b\x05\x06\x00\x00\x00\x00";
  7. Private $old_offset=0;
  9. //压缩后下载
  10. Function DownLoad($curdir,$zipfilename,$out){
  11. $zipfilename=StrToLower($zipfilename);
  12. $curdir=Str_iReplace(basename($curdir),"",$curdir);
  13. chdir($curdir.$this->StrPath);
  15. header('Content-Encoding: none');
  16. header('Content-Type: application/zip');
  17. header('Content-Disposition: attachment ; filename='.Str_Replace(".zip","",basename($zipfilename)).'.zip');
  18. header('Pragma: no-cache');
  19. header('Expires: 0');
  20. print($out);
  21. }
  23. //压缩后保存在服务器,默认在/@Upload下
  24. Function SaveFile($curdir,$zipfilename,$out){
  25. $curdir=Str_iReplace(basename($curdir),"",$curdir);
  26. chdir($curdir.$this->StrPath);
  27. $fp=fopen($zipfilename,"wb");
  28. fwrite($fp,$out,strlen($out));
  29. fclose($fp);
  30. }
  32. //函数用途:压缩文件夹,递归逐层进行
  33. //参数详解:$dir需要压缩的目录,$zipfilename压缩后的文件名及存放路径,$Todo处理方式1提供下载2保存文件在服务器
  34. Function ZipDir($dir,$zipfilename,$Todo){
  35. IF(!@Function_exists('gzcompress')){Return 0;}
  36. @set_time_limit("0");
  37. $this->openFile($dir,$zipfilename);
  38. $out=$this -> filezip();
  40. Switch ($Todo){
  41. Case "1":
  42. $this -> DownLoad(__FILE__,$zipfilename,$out);
  43. Break;
  44. Case "2":
  45. $this -> SaveFile(__FILE__,$zipfilename,$out);
  46. Break;
  47. }
  48. }
  50. //函数用途:压缩文件,可以是单个也可以是数组的多个
  51. //参数详解:$file需要压缩的文件(可为数组),$zipfilename压缩后的文件名及存放路径,$Todo处理方式1提供下载2保存文件在服务器
  52. Function ZipFile($file,$zipfilename,$Todo){
  53. IF(!@Function_exists('gzcompress')){Return 0;}
  54. IF(is_array($file)){
  55. Foreach($file as $filename){
  56. IF(is_file($filename)){
  57. $fd= fopen ($filename, "rb");
  58. $content= @fread($fd, filesize ($filename));
  59. fclose ($fd);
  61. $filename= basename($filename);
  62. $this -> addFile($content, $filename);
  63. }
  64. }
  65. }Else{
  66. IF(is_file($file)){
  67. $fd= fopen ($file, "rb");
  68. $content= @fread($fd, filesize($file));
  69. fclose ($fd);
  70. $file= basename($file);
  71. $this -> addFile($content, $file);
  72. }
  73. }
  74. $out= $this -> filezip();
  76. Switch ($Todo){
  77. Case "1":
  78. $this -> DownLoad(__FILE__,$zipfilename,$out);
  79. Break;
  80. Case "2":
  81. $this -> SaveFile(__FILE__,$zipfilename,$out);
  82. Break;
  83. }
  84. }
  86. //递归取得下层文件夹下的文件
  87. Function openFile($path,$zipName){
  88. $temp_path=$path;
  89. $temp_zip_path=$zipName;
  90. IF($handle=@opendir($path)){
  91. While(false !== ($file=readdir($handle))){
  92. IF($file !='.' and $file !='..'){
  93. IF(ereg('\.' ,$file.@basename())){
  94. $fd=fopen($path.'/'.$file,"r");
  95. $fileValue=@fread($fd,1024000);
  96. fclose ($fd);
  97. $this -> addFile($fileValue,$path.'/'.$file);
  98. }Else{
  99. $this ->openFile($path.'/'.$file,$zipName.'/'.$file);
  100. }
  101. }
  102. }
  103. $zipName=$temp_zip_path;
  104. $path=$temp_path;
  105. closedir($handle);
  106. }
  107. }
  109. Function addFile($data,$name,$time=0){
  110. $name=str_replace('\\','/',$name);
  111. $name=str_replace('./','',str_replace('../','',$name));
  112. $dtime=dechex($this->unix2DosTime($time));
  113. $hexdtime='\x'.$dtime[6].$dtime[7].'\x'.$dtime[4].$dtime[5].'\x'.$dtime[2].$dtime[3].'\x'.$dtime[0].$dtime[1];
  114. Eval('$hexdtime="'.$hexdtime.'";');
  116. $fr="\x50\x4b\x03\x04";
  117. $fr.="\x14\x00";
  118. $fr.="\x00\x00";
  119. $fr.="\x08\x00";
  120. $fr.=$hexdtime;
  122. $unc_len=strlen($data);
  123. $crc=crc32($data);
  124. $zdata=gzcompress($data);
  125. $c_len=strlen($zdata);
  126. $zdata=substr(substr($zdata,0,strlen($zdata) - 4),2);
  127. $fr.=pack('V',$crc);
  128. $fr.=pack('V',$c_len);
  129. $fr.=pack('V',$unc_len);
  130. $fr.=pack('v',strlen($name));
  131. $fr.=pack('v',0);
  132. $fr.=$name;
  133. $fr.=$zdata;
  134. $fr.=pack('V',$crc);
  135. $fr.=pack('V',$c_len);
  136. $fr.=pack('V',$unc_len);
  138. $this -> datasec[]=$fr;
  139. $new_offset=strlen(implode('',$this->datasec));
  141. $cdrec="\x50\x4b\x01\x02";
  142. $cdrec.="\x00\x00";
  143. $cdrec.="\x14\x00";
  144. $cdrec.="\x00\x00";
  145. $cdrec.="\x08\x00";
  146. $cdrec.=$hexdtime;
  147. $cdrec.=pack('V',$crc);
  148. $cdrec.=pack('V',$c_len);
  149. $cdrec.=pack('V',$unc_len);
  150. $cdrec.=pack('v',strlen($name) );
  151. $cdrec.=pack('v',0 );
  152. $cdrec.=pack('v',0 );
  153. $cdrec.=pack('v',0 );
  154. $cdrec.=pack('v',0 );
  155. $cdrec.=pack('V',32 );
  156. $cdrec.=pack('V',$this -> old_offset );
  157. $this -> old_offset=$new_offset;
  158. $cdrec.=$name;
  159. $this -> ctrl_dir[]=$cdrec;
  160. }
  162. Function filezip(){
  163. $data=implode('',$this -> datasec);
  164. $ctrldir=implode('',$this -> ctrl_dir);
  166. Return
  167. $data.$ctrldir.$this -> eof_ctrl_dir .
  168. pack('v',sizeof($this -> ctrl_dir)) .
  169. pack('v',sizeof($this -> ctrl_dir)) .
  170. pack('V',strlen($ctrldir)) .
  171. pack('V',strlen($data))."\x00\x00";
  172. }
  174. Function unix2DosTime($unixtime=0){
  175. $timearray=($unixtime== 0) ? getdate() : getdate($unixtime);
  176. IF($timearray['year'] < 1980){
  177. $timearray['year']=1980;
  178. $timearray['mon']=1;
  179. $timearray['mday']=1;
  180. $timearray['hours']=0;
  181. $timearray['minutes']=0;
  182. $timearray['seconds']=0;
  183. }
  184. Return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) | ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
  185. }
  187. /*
  188. 解压缩部分
  189. 用途:解压缩文件
  190. 参数:$zn需要解压缩的zip文件及路径,$to解压缩的目的地
  191. */
  192. Function Unzip_File($zn, $to, $index = Array(-1)){
  193. $ok = 0;
  194. $zip = @fopen($zn, 'rb');
  195. IF(!$zip){Return(-1);}
  196. $cdir = $this -> ReadCentralDir($zip, $zn);
  197. $pos_entry = $cdir['offset'];
  199. IF(!is_array($index)){
  200. $index = array($index);
  201. }
  202. For($i = 0; $index[$i];$i++){
  203. IF(intval($index[$i])!= $index[$i] || $index[$i] > $cdir['entries']){Return(-1);}
  204. }
  206. For($i=0;$i<$cdir['entries'];$i++){
  207. @fseek($zip, $pos_entry);
  208. $header = $this -> ReadCentralFileHeaders($zip);
  209. $header['index'] = $i;
  210. $pos_entry = ftell($zip);
  211. @rewind($zip);
  212. fseek($zip, $header['offset']);
  213. IF(in_array("-1", $index) || in_array($i, $index)){$stat[$header['filename']] = $this -> ExtractFile($header, $to, $zip);}
  214. }
  215. fclose($zip);
  216. Return $stat;
  217. }
  219. //取得压缩包内的文件信息
  220. Function get_List($zip_name){
  221. $zip = @fopen($zip_name, 'rb');
  222. IF(!$zip){Return(0);}
  223. $centd = $this -> ReadCentralDir($zip, $zip_name);
  225. @rewind($zip);
  226. @fseek($zip, $centd['offset']);
  228. For($i=0;$i<$centd['entries'];$i++){
  229. $header = $this -> ReadCentralFileHeaders($zip);
  230. $header['index'] = $i;
  231. $info['filename'] = $header['filename'];
  232. $info['stored_filename'] = $header['stored_filename'];
  233. $info['size'] = $header['size'];
  234. $info['compressed_size'] = $header['compressed_size'];
  235. $info['crc'] = strtoupper(dechex($header['crc']));
  236. $info['mtime'] = $header['mtime'];
  237. $info['comment'] = $header['comment'];
  238. $info['folder'] = ($header['external'] == 0x41FF0010 || $header['external'] == 16)?1:0;
  239. $info['index'] = $header['index'];
  240. $info['status'] = $header['status'];
  241. $ret[] = $info;
  242. unset($header);
  243. }
  244. Return $ret;
  245. }
  247. Function ReadFileHeader($zip){
  248. $binary_data = fread($zip, 30);
  249. $data = unpack('vchk/vid/vversion/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len', $binary_data);
  251. $header['filename'] = fread($zip, $data['filename_len']);
  252. IF($data['extra_len'] != 0){$header['extra'] = fread($zip, $data['extra_len']);}Else{$header['extra'] = '';}
  254. $header['compression'] = $data['compression'];
  255. $header['size'] = $data['size'];
  256. $header['compressed_size'] = $data['compressed_size'];
  257. $header['crc'] = $data['crc'];
  258. $header['flag'] = $data['flag'];
  259. $header['mdate'] = $data['mdate'];
  260. $header['mtime'] = $data['mtime'];
  262. IF($header['mdate'] && $header['mtime']){
  263. $hour = ($header['mtime']&0xF800) >> 11;
  264. $minute = ($header['mtime']&0x07E0) >> 5;
  265. $seconde = ($header['mtime']&0x001F) * 2;
  266. $year = (($header['mdate']&0xFE00) >> 9) + 1980;
  267. $month = ($header['mdate']&0x01E0) >> 5;
  268. $day = $header['mdate']&0x001F;
  269. $header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);
  270. }Else{
  271. $header['mtime'] = time();
  272. }
  274. $header['stored_filename'] = $header['filename'];
  275. $header['status'] = "ok";
  276. Return $header;
  277. }
  279. Function ReadCentralFileHeaders($zip){
  280. $binary_data = fread($zip, 46);
  281. $header = unpack('vchkid/vid/vversion/vversion_extracted/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len/vcomment_len/vdisk/vinternal/Vexternal/Voffset', $binary_data);
  283. IF($header['filename_len'] != 0)
  284. $header['filename'] = fread($zip, $header['filename_len']);
  285. Else $header['filename'] = '';
  287. IF($header['extra_len'] != 0)
  288. $header['extra'] = fread($zip, $header['extra_len']);
  289. Else $header['extra'] = '';
  291. IF($header['comment_len'] != 0)
  292. $header['comment'] = fread($zip, $header['comment_len']);
  293. Else $header['comment'] = '';
  295. IF($header['mdate'] && $header['mtime']){
  296. $hour = ($header['mtime'] &0xF800) >> 11;
  297. $minute = ($header['mtime'] &0x07E0) >> 5;
  298. $seconde = ($header['mtime'] &0x001F) * 2;
  299. $year = (($header['mdate'] &0xFE00) >> 9) + 1980;
  300. $month = ($header['mdate'] &0x01E0) >> 5;
  301. $day = $header['mdate'] &0x001F;
  302. $header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);
  303. }Else{
  304. $header['mtime'] = time();
  305. }
  306. $header['stored_filename'] = $header['filename'];
  307. $header['status'] = 'ok';
  308. IF(substr($header['filename'], -1) == '/')
  309. $header['external'] = 0x41FF0010;
  310. Return $header;
  311. }
  313. Function ReadCentralDir($zip, $zip_name){
  314. $size = filesize($zip_name);
  315. IF($size < 277){$maximum_size = $size;}Else{$maximum_size = 277;}
  317. @fseek($zip, $size - $maximum_size);
  318. $pos = ftell($zip);
  319. $bytes = 0x00000000;
  321. While($pos < $size){
  322. $byte = @fread($zip, 1);
  323. $bytes = ($bytes << 8) | Ord($byte);
  324. IF($bytes == 0x504b0506){
  325. $pos++;
  326. break;
  327. }
  328. $pos++;
  329. }
  331. $data = unpack('vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size', fread($zip, 18));
  333. IF($data['comment_size'] != 0){$centd['comment'] = fread($zip, $data['comment_size']);}Else{$centd['comment'] = '';}
  334. $centd['entries'] = $data['entries'];
  335. $centd['disk_entries'] = $data['disk_entries'];
  336. $centd['offset'] = $data['offset'];
  337. $centd['disk_start'] = $data['disk_start'];
  338. $centd['size'] = $data['size'];
  339. $centd['disk'] = $data['disk'];
  340. Return $centd;
  341. }
  343. Function ExtractFile($header, $to, $zip){
  344. $header = $this -> readfileheader($zip);
  346. IF(substr($to, -1) != "/") $to .= "/";
  347. IF(!@is_dir($to)) @mkdir($to, 0777);
  349. $pth = explode("/", dirname($header['filename']));
  350. For($i = 0;isset($pth[$i]);$i++){
  351. IF(!$pth[$i]) continue;
  352. $pthss .= $pth[$i] . "/";
  353. IF(!is_dir($to . $pthss)) @mkdir($to . $pthss, 0777);
  354. }
  355. IF(!($header['external'] == 0x41FF0010) && !($header['external'] == 16)){
  356. IF($header['compression'] == 0){
  357. $fp = @fopen($to . $header['filename'], 'wb');
  358. IF(!$fp) Return(-1);
  359. $size = $header['compressed_size'];
  361. While($size != 0){
  362. $read_size = ($size < 2048 ? $size : 2048);
  363. $buffer = fread($zip, $read_size);
  364. $binary_data = pack('a' . $read_size, $buffer);
  365. @fwrite($fp, $binary_data, $read_size);
  366. $size -= $read_size;
  367. }
  368. fclose($fp);
  369. touch($to . $header['filename'], $header['mtime']);
  370. }Else{
  371. $fp = @fopen($to . $header['filename'] . '.gz', 'wb');
  372. IF(!$fp) Return(-1);
  373. $binary_data = pack('va1a1Va1a1', 0x8b1f, Chr($header['compression']),
  374. Chr(0x00), time(), Chr(0x00), Chr(3));
  376. fwrite($fp, $binary_data, 10);
  377. $size = $header['compressed_size'];
  379. While($size != 0){
  380. $read_size = ($size < 1024 ? $size : 1024);
  381. $buffer = fread($zip, $read_size);
  382. $binary_data = pack('a' . $read_size, $buffer);
  383. @fwrite($fp, $binary_data, $read_size);
  384. $size -= $read_size;
  385. }
  387. $binary_data = pack('VV', $header['crc'], $header['size']);
  388. fwrite($fp, $binary_data, 8);
  389. fclose($fp);
  391. $gzp = @gzopen($to . $header['filename'] . '.gz', 'rb') or die("Cette archive est compress閑");
  392. IF(!$gzp) Return(-2);
  393. $fp = @fopen($to . $header['filename'], 'wb');
  394. IF(!$fp) Return(-1);
  395. $size = $header['size'];
  397. While($size != 0){
  398. $read_size = ($size < 2048 ? $size : 2048);
  399. $buffer = gzread($gzp, $read_size);
  400. $binary_data = pack('a' . $read_size, $buffer);
  401. @fwrite($fp, $binary_data, $read_size);
  402. $size -= $read_size;
  403. }
  404. fclose($fp);
  405. gzclose($gzp);
  407. touch($to . $header['filename'], $header['mtime']);
  408. @unlink($to . $header['filename'] . '.gz');
  409. }
  410. }
  411. Return true;
  412. }
  413. }
  414. ?>

使用方法：

函数:文件压缩
压缩参数:需要压缩的文件或文件夹(文件可为数组),压缩后的zip文件名及存放路径,压缩类型1:文件夹2:文件,后续操作1:压缩后下载;2:存放在服务器上(默认为/@Upload下)
压缩文件夹示例:Tozip("./","../".date("d-H-i-s").".zip",1,2);
压缩文件示例:
$aaa=array("../1.txt","../2.txt");
Tozip($aaa,"../2.zip",2);

用法举例：
比如有这样一段文件结构：
home
--upload
----1.jpg
----2.jpg
----3.jpg
--web
----html
------inc
--------zip.php(这是上面的代码库）
------download.php

使用download.php中的代码，实现upload文件夹打包并自动下载：

  1. <?php
  3. Function Tozip($Path,$ZipFile,$Typ=1,$Todo=1){
  4. //IF(!is_writeable($Path)){Exit("文件夹不可写!");}
  5. $Path=Str_iReplace("\\","/",($Path));
  6. IF(Is_Null($Path) Or Empty($Path) Or !IsSet($Path)){Return False;}
  7. IF(Is_Null($ZipFile) Or Empty($ZipFile) Or !IsSet($ZipFile)){Return False;}
  9. Include_once("inc/zip.php"); // 载入代码库，注意路径
  10. $zip = New PHPZip;
  11. IF(SubStr($Path,-1,1)=="/"){$Path=SubStr($Path,0,StrLen($Path)-1);}
  13. OB_end_clean();
  14. Switch ($Typ){
  15. Case "1":
  16. $zip->ZipDir($Path,$ZipFile,$Todo);
  17. Break;
  18. Case "2":
  19. $zip->ZipFile($Path,$ZipFile,$Todo);
  20. Break;
  21. }
  23. IF($Todo==1){
  24. Die();
  25. }Else{
  26. Return True;
  27. }
  28. }
  30. Tozip("././upload", "../../upload.zip",1,1)
  31. ?>

转载请保留链接：http://ilovetile.com/3074 感谢您对版权的尊重

//最然转载这个，但是个人认为这种相对路径，最好不要在上传下载的时候用，容易引发漏洞。能用绝对路径就用绝对路径...





posted @ 2014-11-24 11:29  SunsCheung  阅读(873)  评论(0)  编辑  收藏  举报