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="x50x4bx05x06x00x00x00x00";
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="x50x4bx03x04";
117. $fr.="x14x00";
118. $fr.="x00x00";
119. $fr.="x08x00";
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="x50x4bx01x02";
142. $cdrec.="x00x00";
143. $cdrec.="x14x00";
144. $cdrec.="x00x00";
145. $cdrec.="x08x00";
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($data))."x00x00";
172. }
174. Function unix2DosTime($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...