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）

<?php
ClassPHPZip{
Private$StrPath="../../@UpLoad";
Private$datasec=array();
Private$ctrl_dir=array();
Private$eof_ctrl_dir="\x50\x4b\x05\x06\x00\x00\x00\x00";
Private$old_offset=0;

//压缩后下载
FunctionDownLoad($curdir,$zipfilename,$out){
$zipfilename=StrToLower($zipfilename);
$curdir=Str_iReplace(basename($curdir),"",$curdir);
chdir($curdir.$this->StrPath);

header('Content-Encoding: none');
header('Content-Type: application/zip');
header('Content-Disposition: attachment ; filename='.Str_Replace(".zip","",basename($zipfilename)).'.zip');
header('Pragma: no-cache');
header('Expires: 0');
print($out);
}

//压缩后保存在服务器,默认在/@Upload下
FunctionSaveFile($curdir,$zipfilename,$out){
$curdir=Str_iReplace(basename($curdir),"",$curdir);
chdir($curdir.$this->StrPath);
$fp=fopen($zipfilename,"wb");
fwrite($fp,$out,strlen($out));
fclose($fp);
}

//函数用途:压缩文件夹,递归逐层进行
//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,$Todo处理方式1提供下载2保存文件在服务器
FunctionZipDir($dir,$zipfilename,$Todo){
IF(!@Function_exists('gzcompress')){Return0;}
@set_time_limit("0");
$this->openFile($dir,$zipfilename);
$out=$this -> filezip();

Switch($Todo){
Case"1":
$this ->DownLoad(__FILE__,$zipfilename,$out);
Break;
Case"2":
$this ->SaveFile(__FILE__,$zipfilename,$out);
Break;
}
}

//函数用途:压缩文件,可以是单个也可以是数组的多个
//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,$Todo处理方式1提供下载2保存文件在服务器
FunctionZipFile($file,$zipfilename,$Todo){
IF(!@Function_exists('gzcompress')){Return0;}
IF(is_array($file)){
Foreach($fileas$filename){
IF(is_file($filename)){
$fd=fopen($filename,"rb");
$content= @fread($fd,filesize($filename));
fclose($fd);

$filename=basename($filename);
$this ->addFile($content,$filename);
}
}
}Else{
IF(is_file($file)){
$fd=fopen($file,"rb");
$content= @fread($fd,filesize($file));
fclose($fd);
$file=basename($file);
$this ->addFile($content,$file);
}
}
$out=$this ->filezip();

Switch($Todo){
Case"1":
$this ->DownLoad(__FILE__,$zipfilename,$out);
Break;
Case"2":
$this ->SaveFile(__FILE__,$zipfilename,$out);
Break;
}
}

//递归取得下层文件夹下的文件
FunctionopenFile($path,$zipName){
$temp_path=$path;
$temp_zip_path=$zipName;
IF($handle=@opendir($path)){
While(false !== ($file=readdir($handle))){
IF($file !='.'and$file !='..'){
IF(ereg('\.' ,$file.@basename())){
$fd=fopen($path.'/'.$file,"r");
$fileValue=@fread($fd,1024000);
fclose($fd);
$this ->addFile($fileValue,$path.'/'.$file);
}Else{
$this ->openFile($path.'/'.$file,$zipName.'/'.$file);
}
}
}
$zipName=$temp_zip_path;
$path=$temp_path;
closedir($handle);
}
}

FunctionaddFile($data,$name,$time=0){
$name=str_replace('\\','/',$name);
$name=str_replace('./','',str_replace('../','',$name));
$dtime=dechex($this->unix2DosTime($time));
$hexdtime='\x'.$dtime[6].$dtime[7].'\x'.$dtime[4].$dtime[5].'\x'.$dtime[2].$dtime[3].'\x'.$dtime[0].$dtime[1];
Eval('$hexdtime="'.$hexdtime.'";');

$fr="\x50\x4b\x03\x04";
$fr.="\x14\x00";
$fr.="\x00\x00";
$fr.="\x08\x00";
$fr.=$hexdtime;

$unc_len=strlen($data);
$crc=crc32($data);
$zdata=gzcompress($data);
$c_len=strlen($zdata);
$zdata=substr(substr($zdata,0,strlen($zdata) - 4),2);
$fr.=pack('V',$crc);
$fr.=pack('V',$c_len);
$fr.=pack('V',$unc_len);
$fr.=pack('v',strlen($name));
$fr.=pack('v',0);
$fr.=$name;
$fr.=$zdata;
$fr.=pack('V',$crc);
$fr.=pack('V',$c_len);
$fr.=pack('V',$unc_len);

$this ->datasec[]=$fr;
$new_offset=strlen(implode('',$this->datasec));

$cdrec="\x50\x4b\x01\x02";
$cdrec.="\x00\x00";
$cdrec.="\x14\x00";
$cdrec.="\x00\x00";
$cdrec.="\x08\x00";
$cdrec.=$hexdtime;
$cdrec.=pack('V',$crc);
$cdrec.=pack('V',$c_len);
$cdrec.=pack('V',$unc_len);
$cdrec.=pack('v',strlen($name));
$cdrec.=pack('v',0);
$cdrec.=pack('v',0);
$cdrec.=pack('v',0);
$cdrec.=pack('v',0);
$cdrec.=pack('V',32);
$cdrec.=pack('V',$this -> old_offset);
$this ->old_offset=$new_offset;
$cdrec.=$name;
$this ->ctrl_dir[]=$cdrec;
}

Functionfilezip(){
$data=implode('',$this -> datasec);
$ctrldir=implode('',$this -> ctrl_dir);

Return
$data.$ctrldir.$this -> eof_ctrl_dir .
pack('v',sizeof($this -> ctrl_dir)) .
pack('v',sizeof($this -> ctrl_dir)) .
pack('V',strlen($ctrldir)) .
pack('V',strlen($data))."\x00\x00";
}

Functionunix2DosTime($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);
}

/*
解压缩部分
用途:解压缩文件
参数:$zn需要解压缩的zip文件及路径,$to解压缩的目的地
*/
FunctionUnzip_File($zn,$to,$index =Array(-1)){
$ok =0;
$zip = @fopen($zn,'rb');
IF(!$zip){Return(-1);}
$cdir =$this ->ReadCentralDir($zip,$zn);
$pos_entry =$cdir['offset'];

IF(!is_array($index)){
$index =array($index);
}
For($i = 0;$index[$i];$i++){
IF(intval($index[$i])!=$index[$i] || $index[$i] > $cdir['entries']){Return(-1);}
}

For($i=0;$i<$cdir['entries'];$i++){
@fseek($zip,$pos_entry);
$header =$this ->ReadCentralFileHeaders($zip);
$header['index'] = $i;
$pos_entry =ftell($zip);
@rewind($zip);
fseek($zip,$header['offset']);
IF(in_array("-1",$index) || in_array($i,$index)){$stat[$header['filename']] = $this ->ExtractFile($header,$to,$zip);}
}
fclose($zip);
Return$stat;
}

//取得压缩包内的文件信息
Functionget_List($zip_name){
$zip = @fopen($zip_name,'rb');
IF(!$zip){Return(0);}
$centd =$this ->ReadCentralDir($zip,$zip_name);

@rewind($zip);
@fseek($zip,$centd['offset']);

For($i=0;$i<$centd['entries'];$i++){
$header =$this ->ReadCentralFileHeaders($zip);
$header['index'] = $i;
$info['filename'] = $header['filename'];
$info['stored_filename'] = $header['stored_filename'];
$info['size'] = $header['size'];
$info['compressed_size'] = $header['compressed_size'];
$info['crc'] = strtoupper(dechex($header['crc']));
$info['mtime'] = $header['mtime'];
$info['comment'] = $header['comment'];
$info['folder'] = ($header['external'] == 0x41FF0010 ||$header['external'] == 16)?1:0;
$info['index'] = $header['index'];
$info['status'] = $header['status'];
$ret[] = $info;
unset($header);
}
Return$ret;
}

FunctionReadFileHeader($zip){
$binary_data =fread($zip,30);
$data =unpack('vchk/vid/vversion/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len',$binary_data);

$header['filename'] = fread($zip,$data['filename_len']);
IF($data['extra_len'] != 0){$header['extra'] = fread($zip,$data['extra_len']);}Else{$header['extra'] = '';}

$header['compression'] = $data['compression'];
$header['size'] = $data['size'];
$header['compressed_size'] = $data['compressed_size'];
$header['crc'] = $data['crc'];
$header['flag'] = $data['flag'];
$header['mdate'] = $data['mdate'];
$header['mtime'] = $data['mtime'];

IF($header['mdate'] && $header['mtime']){
$hour =($header['mtime']&0xF800) >> 11;
$minute =($header['mtime']&0x07E0) >> 5;
$seconde =($header['mtime']&0x001F) * 2;
$year =(($header['mdate']&0xFE00) >> 9) + 1980;
$month =($header['mdate']&0x01E0) >> 5;
$day =$header['mdate']&0x001F;
$header['mtime'] = mktime($hour,$minute,$seconde,$month,$day,$year);
}Else{
$header['mtime'] = time();
}

$header['stored_filename'] = $header['filename'];
$header['status'] = "ok";
Return$header;
}

FunctionReadCentralFileHeaders($zip){
$binary_data =fread($zip,46);
$header =unpack('vchkid/vid/vversion/vversion_extracted/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len/vcomment_len/vdisk/vinternal/Vexternal/Voffset',$binary_data);

IF($header['filename_len'] != 0)
$header['filename'] = fread($zip,$header['filename_len']);
Else$header['filename'] = '';

IF($header['extra_len'] != 0)
$header['extra'] = fread($zip,$header['extra_len']);
Else$header['extra'] = '';

IF($header['comment_len'] != 0)
$header['comment'] = fread($zip,$header['comment_len']);
Else$header['comment'] = '';

IF($header['mdate'] && $header['mtime']){
$hour =($header['mtime'] &0xF800) >> 11;
$minute =($header['mtime'] &0x07E0) >> 5;
$seconde =($header['mtime'] &0x001F) * 2;
$year =(($header['mdate'] &0xFE00) >> 9) + 1980;
$month =($header['mdate'] &0x01E0) >> 5;
$day =$header['mdate'] &0x001F;
$header['mtime'] = mktime($hour,$minute,$seconde,$month,$day,$year);
}Else{
$header['mtime'] = time();
}
$header['stored_filename'] = $header['filename'];
$header['status'] = 'ok';
IF(substr($header['filename'], -1) == '/')
$header['external'] = 0x41FF0010;
Return$header;
}

FunctionReadCentralDir($zip,$zip_name){
$size =filesize($zip_name);
IF($size < 277){$maximum_size = $size;}Else{$maximum_size = 277;}

@fseek($zip,$size -$maximum_size);
$pos =ftell($zip);
$bytes =0x00000000;

While($pos < $size){
$byte = @fread($zip,1);
$bytes =($bytes << 8) | Ord($byte);
IF($bytes == 0x504b0506){
$pos++;
break;
}
$pos++;
}

$data =unpack('vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size',fread($zip,18));

IF($data['comment_size'] != 0){$centd['comment'] = fread($zip,$data['comment_size']);}Else{$centd['comment'] = '';}
$centd['entries'] = $data['entries'];
$centd['disk_entries'] = $data['disk_entries'];
$centd['offset'] = $data['offset'];
$centd['disk_start'] = $data['disk_start'];
$centd['size'] = $data['size'];
$centd['disk'] = $data['disk'];
Return$centd;
}

FunctionExtractFile($header,$to,$zip){
$header =$this ->readfileheader($zip);

IF(substr($to, -1) != "/")$to .="/";
IF(!@is_dir($to)) @mkdir($to,0777);

$pth =explode("/",dirname($header['filename']));
For($i = 0;isset($pth[$i]);$i++){
IF(!$pth[$i])continue;
$pthss .=$pth[$i] . "/";
IF(!is_dir($to . $pthss)) @mkdir($to . $pthss,0777);
}
IF(!($header['external'] == 0x41FF0010) && !($header['external'] == 16)){
IF($header['compression'] == 0){
$fp = @fopen($to . $header['filename'],'wb');
IF(!$fp)Return(-1);
$size =$header['compressed_size'];

While($size != 0){
$read_size =($size < 2048 ?$size :2048);
$buffer =fread($zip,$read_size);
$binary_data =pack('a' . $read_size,$buffer);
@fwrite($fp,$binary_data,$read_size);
$size -=$read_size;
}
fclose($fp);
touch($to . $header['filename'],$header['mtime']);
}Else{
$fp = @fopen($to . $header['filename'] . '.gz','wb');
IF(!$fp)Return(-1);
$binary_data =pack('va1a1Va1a1',0x8b1f,Chr($header['compression']),
Chr(0x00),time(),Chr(0x00),Chr(3));

fwrite($fp,$binary_data,10);
$size =$header['compressed_size'];

While($size != 0){
$read_size =($size < 1024 ?$size :1024);
$buffer =fread($zip,$read_size);
$binary_data =pack('a' . $read_size,$buffer);
@fwrite($fp,$binary_data,$read_size);
$size -=$read_size;
}

$binary_data =pack('VV',$header['crc'],$header['size']);
fwrite($fp,$binary_data,8);
fclose($fp);

$gzp = @gzopen($to . $header['filename'] . '.gz','rb')ordie("Cette archive est compress閑");
IF(!$gzp)Return(-2);
$fp = @fopen($to . $header['filename'],'wb');
IF(!$fp)Return(-1);
$size =$header['size'];

While($size != 0){
$read_size =($size < 2048 ?$size :2048);
$buffer =gzread($gzp,$read_size);
$binary_data =pack('a' . $read_size,$buffer);
@fwrite($fp,$binary_data,$read_size);
$size -=$read_size;
}
fclose($fp);
gzclose($gzp);

touch($to . $header['filename'],$header['mtime']);
@unlink($to . $header['filename'] . '.gz');
}
}
Returntrue;
}
}
?>

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：

<?php

FunctionTozip($Path,$ZipFile,$Typ=1,$Todo=1){
//IF(!is_writeable($Path)){Exit("文件夹不可写!");}
$Path=Str_iReplace("\\","/",($Path));
IF(Is_Null($Path)OrEmpty($Path)Or !IsSet($Path)){ReturnFalse;}
IF(Is_Null($ZipFile)OrEmpty($ZipFile)Or !IsSet($ZipFile)){ReturnFalse;}

Include_once("inc/zip.php"); // 载入代码库，注意路径
$zip =NewPHPZip;
IF(SubStr($Path,-1,1)=="/"){$Path=SubStr($Path,0,StrLen($Path)-1);}

OB_end_clean();
Switch($Typ){
Case"1":
$zip->ZipDir($Path,$ZipFile,$Todo);
Break;
Case"2":
$zip->ZipFile($Path,$ZipFile,$Todo);
Break;
}

IF($Todo==1){
Die();
}Else{
ReturnTrue;
}
}

Tozip("././upload","../../upload.zip",1,1)
?>

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…