PHP打包下载整个文件夹或多文件
来源：互联网 发布：成都轩通大数据怎么样 编辑：程序博客网 时间：2024/05/16 04:41
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…
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