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…