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从织梦DeDeCMS中提取的zip压缩文件操作类,包含zip文件压缩、解压缩、添加文件到压缩包中等多个实用的函数,注释详细方便使用。
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下载:dedecms中提取的zip压缩文件操作类zip.class.php
包含的函数和简单的使用方法:
1.函数get_List($zip_name) ,函数作用:获取zip文件中的文件列表。函数参数 $zip_name zip文件名。返回值 文件列表数组。
2.函数Add($files,$compact),函数作用:增加文件到压缩文件。函数参数 $files 需要增加的文件列表,可以是字符串也可以是数组,$compact 压缩文件名称。函数返回值 数组 压缩文件信息。
3.函数get_file(),函数作用:获取文件,获取后可以让其进行下载。
4.函数add_dir($name),函数作用:增加文件目录。函数参数 $name 目录名称。
5.函数CompileZipFile($filename, $tozipfilename,$ftype='dir'),函数作用:编译指定的文件为zip文件(filename可以为文件数组array、目录dir或单个文件file)。函数参数 $filename 文件名称,$tozipfilename 压缩文件名称,$ftype 压缩类型。返回值 整型 影响文件数。
6.函数ListDirFiles($dirname),函数作用:读取某文件夹的所有文件。函数参数 $dirname 目录名称。返回值 如果失败则返回false。
7.函数add_File($data, $name, $compact = 1),函数作用:增加文件。函数参数 $data 数据,$name 名称,$compact 压缩。
8.函数ExtractAll ( $zn, $to),函数作用:解压整个压缩包 直接用 Extract 会有路径问题,本函数先从列表中获得文件信息并创建好所有目录然后才运行 Extract。函数参数 $zn zip文件名称,$to 解压到的目录地址。
9.函数Extract ( $zn, $to, $index = Array(-1) ),函数作用:解压单个文件。函数参数 $zn zip文件名称,$to 解压到的目录地址。
简单使用方法:
get_List("www.zip")); //向压缩包中增加文件 print_r($zip->Add("test.txt","www.zip")); //压缩文件 echo $zip->CompileZipFile("test.txt","test.zip","file"); //压缩多个文件 echo $zip->CompileZipFile(array('test1.txt','test2.jpg','test3.png'),"test.zip","array"); //压缩目录 echo $zip->CompileZipFile("test","test.zip","dir"); //目录文件列表 print_r($zip->ListDirFiles("a")); //解压所有文件 $zip->ExtractAll("www.zip","www"); //解压单个文件 $zip->Extract("www.zip","www",1); ?>
zip.class.php完整代码:
ReadCentralDir($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; } /** * 增加文件到压缩文件 * * @access public * @param string $files 需要增加的文件列表,可以是字符串也可以是数组 * @param string $compact 压缩文件名称 * @return array 压缩文件信息 */ function Add($files,$compact) { if(!is_array($files[0])) { $files=Array($files); } for($i=0;$files[$i];$i++) { $fn = $files[$i]; if(!in_Array(dirname($fn[0]),$this->dirs)) { $this->add_Dir(dirname($fn[0])); } if(basename($fn[0])) { $ret[basename($fn[0])]=$this->add_File($fn[1],$fn[0],$compact); } } return $ret; } /** * 获取文件,获取后可以让其进行下载 * * @access public * @return void */ function get_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"; } /** * 增加文件目录 * * @access public * @param string $name 目录名称 * @return void */ function add_dir($name) { $name = str_replace("\\", "/", $name); $fr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"; $fr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) ); $fr .= pack("v", 0 ).$name.pack("V", 0).pack("V", 0).pack("V", 0); $this -> datasec[] = $fr; $new_offset = strlen(implode("", $this->datasec)); $cdrec = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"; $cdrec .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) ); $cdrec .= pack("v", 0 ).pack("v", 0 ).pack("v", 0 ).pack("v", 0 ); $ext = "\xff\xff\xff\xff"; $cdrec .= pack("V", 16 ).pack("V", $this -> old_offset ).$name; $this -> ctrl_dir[] = $cdrec; $this -> old_offset = $new_offset; $this -> dirs[] = $name; } /** * 编译指定的文件为zip文件(filename可以为文件数组array、目录dir或单个文件file) * * @access public * @param string $filename 文件名称 * @param string $tozipfilename 压缩文件名称 * @param string $ftype 压缩类型 * @return int 影响文件数 */ function CompileZipFile($filename, $tozipfilename,$ftype='dir') { if (@function_exists('gzcompress')) { if($ftype=='dir') { $filelist = $this->ListDirFiles($filename); } else if($ftype=='file') { $filelist[] = $filename; } else { $filelist = $filename; } $i = 0; if(count($filelist)>0) { foreach($filelist as $filename) { if (is_file($filename)) { $i++; $fd = fopen ($filename, "r"); if(filesize($filename)>0) { $content = fread($fd, filesize($filename)); } else { $content = ' '; } fclose ($fd); //if (is_array($dir)) $filename = basename($filename); $this->add_File($content, $filename); } } $out = $this->get_file(); $fp = fopen($tozipfilename, "w"); fwrite($fp, $out, strlen($out)); fclose($fp); } return $i; } else { return 0; } } /** * 读取某文件夹的所有文件 * * @access public * @param string $dirname 目录名称 * @return mix 如果失败则返回false */ function ListDirFiles($dirname) { $files = array(); if(is_dir($dirname)) { $fh = opendir($dirname); while (($file = readdir($fh)) !== false) { if (strcmp($file, '.')==0 || strcmp($file, '..')==0) { continue; } $filepath = $dirname . '/' . $file; if ( is_dir($filepath) ) { $files = array_merge($files, $this->ListDirFiles($filepath)); } else { array_push($files, $filepath); } } closedir($fh); } else { $files = false; } return $files; } /** * 增加文件 * * @access public * @param string $data 数据 * @param string $name 名称 * @param string $compact 压缩 * @return string */ function add_File($data, $name, $compact = 1) { $name = str_replace('\\', '/', $name); $dtime = dechex($this->DosTime()); $hexdtime = '\x' . $dtime[6] . $dtime[7].'\x'.$dtime[4] . $dtime[5] . '\x' . $dtime[2] . $dtime[3].'\x'.$dtime[0].$dtime[1]; eval('$hexdtime = "' . $hexdtime . '";'); if($compact) $fr = "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00".$hexdtime; else { $fr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00".$hexdtime; } $unc_len = strlen($data); $crc = crc32($data); if($compact) { $zdata = gzcompress($data); $c_len = strlen($zdata); $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); } else { $zdata = $data; } $c_len=strlen($zdata); $fr .= pack('V', $crc).pack('V', $c_len).pack('V', $unc_len); $fr .= pack('v', strlen($name)).pack('v', 0).$name.$zdata; $fr .= pack('V', $crc).pack('V', $c_len).pack('V', $unc_len); $this -> datasec[] = $fr; $new_offset = strlen(implode('', $this->datasec)); if($compact) { $cdrec = "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00"; } else { $cdrec = "\x50\x4b\x01\x02\x14\x00\x0a\x00\x00\x00\x00\x00"; } $cdrec .= $hexdtime.pack('V', $crc).pack('V', $c_len).pack('V', $unc_len); $cdrec .= pack('v', strlen($name) ).pack('v', 0 ).pack('v', 0 ); $cdrec .= pack('v', 0 ).pack('v', 0 ).pack('V', 32 ); $cdrec .= pack('V', $this -> old_offset ); $this -> old_offset = $new_offset; $cdrec .= $name; $this -> ctrl_dir[] = $cdrec; return true; } /** * 返回时间 * * @access public * @return int */ function DosTime() { $timearray = getdate(); if ($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); } /** * 解压整个压缩包 * 直接用 Extract 会有路径问题,本函数先从列表中获得文件信息并创建好所有目录然后才运行 Extract * * @access public * @param string $zn zip文件名称 * @param string $to 解压到的目录地址 * @return string */ function ExtractAll ( $zn, $to) { if(substr($to,-1)!="/") { $to .= "/"; } $files = $this->get_List($zn); $cn = count($files); if(is_array($files)) { for($i=0;$i<$cn;$i++) { if($files[$i]['folder']==1) { @mkdir($to.$files[$i]['filename'],$GLOBALS['cfg_dir_purview']); @chmod($to.$files[$i]['filename'],$GLOBALS['cfg_dir_purview']); } } } $this->Extract ($zn,$to); } /** * 解压单个文件 * * @access public * @param string $zn zip文件名称 * @param string $to 解压到的目录地址 * @return string */ function Extract ( $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($i=0; isset($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 $stat; } function ReadFileHeader($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, $data['filename_len']); if ($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 $header; } function ReadCentralFileHeaders($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', $binary_data); if ($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 $header; } function ReadCentralDir($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 $centd; } function ExtractFile($header,$to,$zip) { $header = $this->readfileheader($zip); $header['external'] = (!isset($header['external']) ? 0 : $header['external']); if(substr($to,-1)!="/") { $to.="/"; } if(!@is_dir($to)) { @mkdir($to,$GLOBALS['cfg_dir_purview']); } 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; } }
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