PHP压缩与解压Zip(PHPZip类)
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<?php class PHPZip { private $ctrl_dir = array(); private $datasec = array(); /********************************************************** * 压缩部分 **********************************************************/ // ------------------------------------------------------ // // #遍历指定文件夹 // // $archive = new PHPZip(); // $filelist = $archive->visitFile(文件夹路径); // print "当前文件夹的文件:<p>\r\n"; // foreach($filelist as $file) // printf("%s<br>\r\n", $file); // ------------------------------------------------------ // var $fileList = array(); public function visitFile($path) { global $fileList; $path = str_replace("\\", "/", $path); $fdir = dir($path); while(($file = $fdir->read()) !== false) { if($file == '.' || $file == '..'){ continue; } $pathSub = preg_replace("*/{2,}*", "/", $path."/".$file); // 替换多个反斜杠 $fileList[] = is_dir($pathSub) ? $pathSub."/" : $pathSub; if(is_dir($pathSub)){ $this->visitFile($pathSub); } } $fdir->close(); return $fileList; } private function unix2DosTime($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); } var $old_offset = 0; private function addFile($data, $filename, $time = 0) { $filename = str_replace('\\', '/', $filename); $dtime = dechex($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); $fr .= pack('v', strlen($filename)); $fr .= pack('v', 0); $fr .= $filename; $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); $cdrec .= pack('v', strlen($filename) ); $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 .= $filename; $this->ctrl_dir[] = $cdrec; } var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00"; private function file() { $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"; } // ------------------------------------------------------ // // #压缩到服务器 // // $archive = new PHPZip(); // $archive->Zip("需压缩的文件所在目录", "ZIP压缩文件名"); // ------------------------------------------------------ // public function Zip($dir, $saveName) { if(@!function_exists('gzcompress')){ return; } ob_end_clean(); $filelist = $this->visitFile($dir); if(count($filelist) == 0){ return; } foreach($filelist as $file) { if(!file_exists($file) || !is_file($file)){ continue; } $fd = fopen($file, "rb"); $content = @fread($fd, filesize($file)); fclose($fd); // 1.删除$dir的字符(./folder/file.txt删除./folder/) // 2.如果存在/就删除(/file.txt删除/) $file = substr($file, strlen($dir)); if(substr($file, 0, 1) == "\\" || substr($file, 0, 1) == "/"){ $file = substr($file, 1); } $this->addFile($content, $file); } $out = $this->file(); $fp = fopen($saveName, "wb"); fwrite($fp, $out, strlen($out)); fclose($fp); } // ------------------------------------------------------ // // #压缩并直接下载 // // $archive = new PHPZip(); // $archive->ZipAndDownload("需压缩的文件所在目录"); // ------------------------------------------------------ // public function ZipAndDownload($dir) { if(@!function_exists('gzcompress')){ return; } ob_end_clean(); $filelist = $this->visitFile($dir); if(count($filelist) == 0){ return; } foreach($filelist as $file) { if(!file_exists($file) || !is_file($file)){ continue; } $fd = fopen($file, "rb"); $content = @fread($fd, filesize($file)); fclose($fd); // 1.删除$dir的字符(./folder/file.txt删除./folder/) // 2.如果存在/就删除(/file.txt删除/) $file = substr($file, strlen($dir)); if(substr($file, 0, 1) == "\\" || substr($file, 0, 1) == "/"){ $file = substr($file, 1); } $this->addFile($content, $file); } $out = $this->file(); @header('Content-Encoding: none'); @header('Content-Type: application/zip'); @header('Content-Disposition: attachment ; filename=Farticle'.date("YmdHis", time()).'.zip'); @header('Pragma: no-cache'); @header('Expires: 0'); print($out); } /********************************************************** * 解压部分 **********************************************************/ // ------------------------------------------------------ // // ReadCentralDir($zip, $zipfile) // $zip是经过@fopen($zipfile, 'rb')打开的 // $zipfile是zip文件的路径 // ------------------------------------------------------ // private function ReadCentralDir($zip, $zipfile) { $size = filesize($zipfile); $max_size = ($size < 277) ? $size : 277; @fseek($zip, $size - $max_size); $pos = ftell($zip); $bytes = 0x00000000; while($pos < $size) { $byte = @fread($zip, 1); $bytes = ($bytes << 8) | Ord($byte); $pos++; if($bytes == 0x504b0506){ break; } } $data = unpack('vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size', fread($zip, 18)); $centd['comment'] = ($data['comment_size'] != 0) ? fread($zip, $data['comment_size']) : ''; // 注释 $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 $centd; } private function ReadCentralFileHeaders($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); $header['filename'] = ($header['filename_len'] != 0) ? fread($zip, $header['filename_len']) : ''; $header['extra'] = ($header['extra_len'] != 0) ? fread($zip, $header['extra_len']) : ''; $header['comment'] = ($header['comment_len'] != 0) ? fread($zip, $header['comment_len']) : ''; if($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; } // 判断是否文件夹 return $header; } private function ReadFileHeader($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']); $header['extra'] = ($data['extra_len'] != 0) ? fread($zip, $data['extra_len']) : ''; $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 $header; } private function ExtractFile($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.$header['filename'].'.gz', 'rb') or die("Cette archive est compress!"); if(!$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'); } } return true; } // ------------------------------------------------------ // // #解压文件 // // $archive = new PHPZip(); // $zipfile = "ZIP压缩文件名"; // $savepath = "解压缩目录名"; // $zipfile = $unzipfile; // $savepath = $unziptarget; // $array = $archive->GetZipInnerFilesInfo($zipfile); // $filecount = 0; // $dircount = 0; // $failfiles = array(); // set_time_limit(0); // 修改为不限制超时时间(默认为30秒) // // for($i=0; $i<count($array); $i++) { // if($array[$i][folder] == 0){ // if($archive->unZip($zipfile, $savepath, $i) > 0){ // $filecount++; // }else{ // $failfiles[] = $array[$i][filename]; // } // }else{ // $dircount++; // } // } // set_time_limit(30); //printf("文件夹:%d 解压文件:%d 失败:%d<br>\r\n", $dircount, $filecount, count($failfiles)); //if(count($failfiles) > 0){ // foreach($failfiles as $file){ // printf("·%s<br>\r\n", $file); // } //} // ------------------------------------------------------ // public function unZip($zipfile, $to, $index = Array(-1)) { $ok = 0; $zip = @fopen($zipfile, 'rb'); if(!$zip){ return(-1); } $cdir = $this->ReadCentralDir($zip, $zipfile); $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; } /********************************************************** * 其它部分 **********************************************************/ // ------------------------------------------------------ // // #获取被压缩文件的信息 // // $archive = new PHPZip(); // $array = $archive->GetZipInnerFilesInfo(ZIP压缩文件名); // for($i=0; $i<count($array); $i++) { // printf("<b>·%s</b><br>\r\n", $array[$i][filename]); // foreach($array[$i] as $key => $value) // printf("%s => %s<br>\r\n", $key, $value); // print "\r\n<p>------------------------------------<p>\r\n\r\n"; // } // ------------------------------------------------------ // public function GetZipInnerFilesInfo($zipfile) { $zip = @fopen($zipfile, 'rb'); if(!$zip){ return(0); } $centd = $this->ReadCentralDir($zip, $zipfile); @rewind($zip); @fseek($zip, $centd['offset']); $ret = array(); for($i=0; $i<$centd['entries']; $i++) { $header = $this->ReadCentralFileHeaders($zip); $header['index'] = $i; $info = array( 'filename' => $header['filename'], // 文件名 'stored_filename' => $header['stored_filename'], // 压缩后文件名 'size' => $header['size'], // 大小 'compressed_size' => $header['compressed_size'], // 压缩后大小 'crc' => strtoupper(dechex($header['crc'])), // CRC32 'mtime' => date("Y-m-d H:i:s",$header['mtime']), // 文件修改时间 'comment' => $header['comment'], // 注释 'folder' => ($header['external'] == 0x41FF0010 || $header['external'] == 16) ? 1 : 0, // 是否为文件夹 'index' => $header['index'], // 文件索引 'status' => $header['status'] // 状态 ); $ret[] = $info; unset($header); } fclose($zip); return $ret; } // ------------------------------------------------------ // // #获取压缩文件的注释 // // $archive = new PHPZip(); // echo $archive->GetZipComment(ZIP压缩文件名); // ------------------------------------------------------ // public function GetZipComment($zipfile) { $zip = @fopen($zipfile, 'rb'); if(!$zip){ return(0); } $centd = $this->ReadCentralDir($zip, $zipfile); fclose($zip); return $centd[comment]; } }?><form method="post"> 压缩到服务器: <br>------------------<br> 压缩目录: <input name="zipdir" type="text" id="zipdir" />(例如./folder)<br> 另存为路径和文件名:<input name="savename" type="text" id="savename" />(例如./folder/file.zip)(需要填写扩展名)<br> <input name="zip" type="submit" id="zip" value="压缩" /><br> <br><br><br> 压缩并下载 <br>------------------<br> 文件所在目录:<input name="zipdowndir" type="text" id="zipdowndir" />(例如./folder)<br> <input name="zipdown" type="submit" id="zipdown" value="压缩并下载" /> <br><br><br> 在线解压zip <br>------------------<br> 文件: <input name="unzipfile" type="text" id="unzipfile" />(例如./folder/file.zip)<br> 解压到:<input name="unziptarget" type="text" id="unziptarget" />(例如./folder)<br> <input name="unzip" type="submit" id="unzip" value="解压" /> <br><br><br> 读取压缩文件内部文件信息和注释 <br>------------------<br> 文件:<input name="readfile" type="text" id="readfile" />(例如./folder/file.zip)<br> <input name="readfileinfo" type="submit" id="readfileinfo" value="读取内部文件信息" /> <input name="readcomment" type="submit" id="readcomment" value="读取注释" /></form><? echo "<p><p>\r\n"; echo "<br>--------------------------<br>\r\n"; echo "显示信息:\r\n"; echo "<br>--------------------------<br>\r\n"; $archive = new PHPZip(); if(!empty($zip)) { $archive->Zip($zipdir, $savename); } elseif(!empty($zipdown)) { $archive->ZipAndDownload($zipdowndir); } elseif(!empty($unzip)) { $zipfile = $unzipfile; $savepath = $unziptarget; $array = $archive->GetZipInnerFilesInfo($zipfile); $filecount = 0; $dircount = 0; $failfiles = array(); set_time_limit(0); // 修改为不限制超时时间(默认为30秒) for($i=0; $i<count($array); $i++) { if($array[$i][folder] == 0){ if($archive->unZip($zipfile, $savepath, $i) > 0){ $filecount++; }else{ $failfiles[] = $array[$i][filename]; } }else{ $dircount++; } } set_time_limit(30);printf("文件夹:%d 解压文件:%d 失败:%d<br>\r\n", $dircount, $filecount, count($failfiles)); if(count($failfiles) > 0){ foreach($failfiles as $file){ printf("·%s<br>\r\n", $file); } } } elseif(!empty($readfileinfo)) { $array = $archive->GetZipInnerFilesInfo($readfile); for($i=0; $i<count($array); $i++) { printf("<b>·%s</b><br>\r\n", $array[$i][filename]); foreach($array[$i] as $key => $value) printf("%s => %s<br>\r\n", $key, $value); print "\r\n<p>------------------------------------<p>\r\n\r\n"; } } elseif(!empty($readcomment)) { $comment = $archive->GetZipComment($readfile); printf("%s<br>\r\n", $comment); }?>visitFile()函数来源：http://topic.csdn.net/u/20071225/11/e6a8db84-df02-4622-987b-2a4ed4a5eef0.html (第14楼)注：修改为可遍历子文件夹（替换遍历方法为visitFile()）；
添加GetZipComment()方法；
加上用法说明(注释部分)。
function visitFile($path){ $total = 0; $fdir = dir($path); //echo "Handle: " . $d->handle . "<br>"; echo "Path: " . $fdir->path . "<br>"; while (($entry = $fdir->read()) !== false) { $pathSub = $path."\\".$entry; if(is_dir($pathSub) && $entry != '.' && $entry != '..') visitFile($pathSub); else echo $entry."<br>"; } $fdir->close();}- PHP压缩与解压Zip(PHPZip类)
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