php zip文件解压类代码_php实例

class zip <BR>{ <BR>var $datasec, $ctrl_dir = array(); <BR>var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00"; <BR>var $old_offset = 0; var $dirs = Array("."); <BR>function get_List($zip_name) <BR>{ <BR>$zip = @fopen($zip_name, 'rb'); <BR>if(!$zip) return(0); <BR>$centd = $this->ReadCentralDir($zip,$zip_name); <BR>@rewind($zip); <BR>@fseek($zip, $centd['offset']); <BR>for ($i=0; $i<$centd['entries']; $i++) <BR>{ <BR>$header = $this->ReadCentralFileHeaders($zip); <BR>$header['index'] = $i;$info['filename'] = $header['filename']; <BR>$info['stored_filename'] = $header['stored_filename']; <BR>$info['size'] = $header['size'];$info['compressed_size']=$header['compressed_size']; <BR>$info['crc'] = strtoupper(dechex( $header['crc'] )); <BR>$info['mtime'] = $header['mtime']; $info['comment'] = $header['comment']; <BR>$info['folder'] = ($header['external']==0x41FF0010||$header['external']==16)?1:0; <BR>$info['index'] = $header['index'];$info['status'] = $header['status']; <BR>$ret[]=$info; unset($header); <BR>} <BR>return $ret; <BR>} <BR>function Add($files,$compact) <BR>{ <BR>if(!is_array($files[0])) $files=Array($files); <BR>for($i=0;$files[$i];$i++){ <BR>$fn = $files[$i]; <BR>if(!in_Array(dirname($fn[0]),$this->dirs)) <BR>$this->add_Dir(dirname($fn[0])); <BR>if(basename($fn[0])) <BR>$ret[basename($fn[0])]=$this->add_File($fn[1],$fn[0],$compact); <BR>} <BR>return $ret; <BR>} <BR>function get_file() <BR>{ <BR>$data = implode('', $this -> datasec); <BR>$ctrldir = implode('', $this -> ctrl_dir); <BR>return $data . $ctrldir . $this -> eof_ctrl_dir . <BR>pack('v', sizeof($this -> ctrl_dir)).pack('v', sizeof($this -> ctrl_dir)). <BR>pack('V', strlen($ctrldir)) . pack('V', strlen($data)) . "\x00\x00"; <BR>} <BR>function add_dir($name) <BR>{ <BR>$name = str_replace("\\", "/", $name); <BR>$fr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"; <BR>$fr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) ); <BR>$fr .= pack("v", 0 ).$name.pack("V", 0).pack("V", 0).pack("V", 0); <BR>$this -> datasec[] = $fr; <BR>$new_offset = strlen(implode("", $this->datasec)); <BR>$cdrec = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"; <BR>$cdrec .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) ); <BR>$cdrec .= pack("v", 0 ).pack("v", 0 ).pack("v", 0 ).pack("v", 0 ); <BR>$ext = "\xff\xff\xff\xff"; <BR>$cdrec .= pack("V", 16 ).pack("V", $this -> old_offset ).$name; <BR>$this -> ctrl_dir[] = $cdrec; <BR>$this -> old_offset = $new_offset; <BR>$this -> dirs[] = $name; <BR>} <BR>function add_File($data, $name, $compact = 1) <BR>{ <BR>$name = str_replace('\\', '/', $name); <BR>$dtime = dechex($this->DosTime()); <BR>$hexdtime = '\x' . $dtime[6] . $dtime[7].'\x'.$dtime[4] . $dtime[5] <BR>. '\x' . $dtime[2] . $dtime[3].'\x'.$dtime[0].$dtime[1]; <BR>eval('$hexdtime = "' . $hexdtime . '";'); <BR>if($compact) <BR>$fr = "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00".$hexdtime; <BR>else $fr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00".$hexdtime; <BR>$unc_len = strlen($data); $crc = crc32($data); <BR>if($compact){ <BR>$zdata = gzcompress($data); $c_len = strlen($zdata); <BR>$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); <BR>}else{ <BR>$zdata = $data; <BR>} <BR>$c_len=strlen($zdata); <BR>$fr .= pack('V', $crc).pack('V', $c_len).pack('V', $unc_len); <BR>$fr .= pack('v', strlen($name)).pack('v', 0).$name.$zdata; <BR>$fr .= pack('V', $crc).pack('V', $c_len).pack('V', $unc_len); <BR>$this -> datasec[] = $fr; <BR>$new_offset = strlen(implode('', $this->datasec)); <BR>if($compact) <BR>$cdrec = "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00"; <BR>else $cdrec = "\x50\x4b\x01\x02\x14\x00\x0a\x00\x00\x00\x00\x00"; <BR>$cdrec .= $hexdtime.pack('V', $crc).pack('V', $c_len).pack('V', $unc_len); <BR>$cdrec .= pack('v', strlen($name) ).pack('v', 0 ).pack('v', 0 ); <BR>$cdrec .= pack('v', 0 ).pack('v', 0 ).pack('V', 32 ); <BR>$cdrec .= pack('V', $this -> old_offset ); <BR>$this -> old_offset = $new_offset; <BR>$cdrec .= $name; <BR>$this -> ctrl_dir[] = $cdrec; <BR>return true; <BR>} <BR>function DosTime() { <BR>$timearray = getdate(); <BR>if ($timearray['year'] < 1980) { <BR>$timearray['year'] = 1980; $timearray['mon'] = 1; <BR>$timearray['mday'] = 1; $timearray['hours'] = 0; <BR>$timearray['minutes'] = 0; $timearray['seconds'] = 0; <BR>} <BR>return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) | ($timearray['hours'] << 11) | <BR>($timearray['minutes'] <> 1); <BR>} <BR>function Extract ( $zn, $to, $index = Array(-1) ) <BR>{ <BR>$ok = 0; $zip = @fopen($zn,'rb'); <BR>if(!$zip) return(-1); <BR>$cdir = $this->ReadCentralDir($zip,$zn); <BR>$pos_entry = $cdir['offset']; <BR>if(!is_array($index)){ $index = array($index); } <BR>for($i=0; $index[$i];$i++){ <BR>if(intval($index[$i])!=$index[$i]||$index[$i]>$cdir['entries']) <BR>return(-1); <BR>} <BR>for ($i=0; $i<$cdir['entries']; $i++) <BR>{ <BR>@fseek($zip, $pos_entry); <BR>$header = $this->ReadCentralFileHeaders($zip); <BR>$header['index'] = $i; $pos_entry = ftell($zip); <BR>@rewind($zip); fseek($zip, $header['offset']); <BR>if(in_array("-1",$index)||in_array($i,$index)) <BR>$stat[$header['filename']]=$this->ExtractFile($header, $to, $zip); <BR>} <BR>fclose($zip); <BR>return $stat; <BR>} <BR>function ReadFileHeader($zip) <BR>{ <BR>$binary_data = fread($zip, 30); <BR>$data = unpack('vchk/vid/vversion/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len', $binary_data); <BR>$header['filename'] = fread($zip, $data['filename_len']); <BR>if ($data['extra_len'] != 0) { <BR>$header['extra'] = fread($zip, $data['extra_len']); <BR>} else { $header['extra'] = ''; } <BR>$header['compression'] = $data['compression'];$header['size'] = $data['size']; <BR>$header['compressed_size'] = $data['compressed_size']; <BR>$header['crc'] = $data['crc']; $header['flag'] = $data['flag']; <BR>$header['mdate'] = $data['mdate'];$header['mtime'] = $data['mtime']; <BR>if ($header['mdate'] && $header['mtime']){ <BR>$hour=($header['mtime']&0xF800)>>11;$minute=($header['mtime']&0x07E0)>>5; <BR>$seconde=($header['mtime']&0x001F)*2;$year=(($header['mdate']&0xFE00)>>9)+1980; <BR>$month=($header['mdate']&0x01E0)>>5;$day=$header['mdate']&0x001F; <BR>$header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year); <BR>}else{$header['mtime'] = time();} <BR>$header['stored_filename'] = $header['filename']; <BR>$header['status'] = "ok"; <BR>return $header; <BR>} <BR>function ReadCentralFileHeaders($zip){ <BR>$binary_data = fread($zip, 46); <BR>$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', $binary_data); <BR>if ($header['filename_len'] != 0) <BR>$header['filename'] = fread($zip,$header['filename_len']); <BR>else $header['filename'] = ''; <BR>if ($header['extra_len'] != 0) <BR>$header['extra'] = fread($zip, $header['extra_len']); <BR>else $header['extra'] = ''; <BR>if ($header['comment_len'] != 0) <BR>$header['comment'] = fread($zip, $header['comment_len']); <BR>else $header['comment'] = ''; <BR>if ($header['mdate'] && $header['mtime']) <BR>{ <BR>$hour = ($header['mtime'] & 0xF800) >> 11; <BR>$minute = ($header['mtime'] & 0x07E0) >> 5; <BR>$seconde = ($header['mtime'] & 0x001F)*2; <BR>$year = (($header['mdate'] & 0xFE00) >> 9) + 1980; <BR>$month = ($header['mdate'] & 0x01E0) >> 5; <BR>$day = $header['mdate'] & 0x001F; <BR>$header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year); <BR>} else { <BR>$header['mtime'] = time(); <BR>} <BR>$header['stored_filename'] = $header['filename']; <BR>$header['status'] = 'ok'; <BR>if (substr($header['filename'], -1) == '/') <BR>$header['external'] = 0x41FF0010; <BR>return $header; <BR>} <BR>function ReadCentralDir($zip,$zip_name) <BR>{ <BR>$size = filesize($zip_name); <BR>if ($size < 277) $maximum_size = $size; <BR>else $maximum_size=277; <BR>@fseek($zip, $size-$maximum_size); <BR>$pos = ftell($zip); $bytes = 0x00000000; <BR>while ($pos < $size) <BR>{ <BR>$byte = @fread($zip, 1); $bytes=($bytes << 8) | Ord($byte); <BR>if ($bytes == 0x504b0506){ $pos++; break; } $pos++; <BR>} <BR>$data=unpack('vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size', <BR>fread($zip, 18)); <BR>if ($data['comment_size'] != 0) <BR>$centd['comment'] = fread($zip, $data['comment_size']); <BR>else $centd['comment'] = ''; $centd['entries'] = $data['entries']; <BR>$centd['disk_entries'] = $data['disk_entries']; <BR>$centd['offset'] = $data['offset'];$centd['disk_start'] = $data['disk_start']; <BR>$centd['size'] = $data['size']; $centd['disk'] = $data['disk']; <BR>return $centd; <BR>} <BR>function ExtractFile($header,$to,$zip) <BR>{ <BR>$header = $this->readfileheader($zip); <BR>if(substr($to,-1)!="/") $to.="/"; <BR>if(!@is_dir($to)) @mkdir($to,0777); <BR>$pth = explode("/",dirname($header['filename'])); <BR>for($i=0;isset($pth[$i]);$i++){ <BR>if(!$pth[$i]) continue; <BR>if(!is_dir($to.$pth[$i])) @mkdir($to.$pth[$i],0777); <BR>} <BR>if (!($header['external']==0x41FF0010)&&!($header['external']==16)) <BR>{ <BR>if ($header['compression']==0) <BR>{ <BR>$fp = @fopen($to.$header['filename'], 'wb'); <BR>if(!$fp) return(-1); <BR>$size = $header['compressed_size']; <BR>while ($size != 0) <BR>{ <BR>$read_size = ($size < 2048 ? $size : 2048); <BR>$buffer = fread($zip, $read_size); <BR>$binary_data = pack('a'.$read_size, $buffer); <BR>@fwrite($fp, $binary_data, $read_size); <BR>$size -= $read_size; <BR>} <BR>fclose($fp); <BR>touch($to.$header['filename'], $header['mtime']); <BR>}else{ <BR>$fp = @fopen($to.$header['filename'].'.gz','wb'); <BR>if(!$fp) return(-1); <BR>$binary_data = pack('va1a1Va1a1', 0x8b1f, Chr($header['compression']), <BR>Chr(0x00), time(), Chr(0x00), Chr(3)); <BR>fwrite($fp, $binary_data, 10); <BR>$size = $header['compressed_size']; <BR>while ($size != 0) <BR>{ <BR>$read_size = ($size < 1024 ? $size : 1024); <BR>$buffer = fread($zip, $read_size); <BR>$binary_data = pack('a'.$read_size, $buffer); <BR>@fwrite($fp, $binary_data, $read_size); <BR>$size -= $read_size; <BR>} <BR>$binary_data = pack('VV', $header['crc'], $header['size']); <BR>fwrite($fp, $binary_data,8); fclose($fp); <BR>$gzp = @gzopen($to.$header['filename'].'.gz','rb') o<a style="color:transparent">、本文来源gao($daima.com搞@代@#码$网</a><big>搞gaodaima代码</big>r die("Cette archive est compress閑"); <BR>if(!$gzp) return(-2); <BR>$fp = @fopen($to.$header['filename'],'wb'); <BR>if(!$fp) return(-1); <BR>$size = $header['size']; <BR>while ($size != 0) <BR>{ <BR>$read_size = ($size < 2048 ? $size : 2048); <BR>$buffer = gzread($gzp, $read_size); <BR>$binary_data = pack('a'.$read_size, $buffer); <BR>@fwrite($fp, $binary_data, $read_size); <BR>$size -= $read_size; <BR>} <BR>fclose($fp); gzclose($gzp); <BR>touch($to.$header['filename'], $header['mtime']); <BR>@unlink($to.$header['filename'].'.gz'); <BR>}} <BR>return true; <BR>} <BR>} <BR>/***********************************/ <BR>class zipPeter{ <BR>    var $_zip_hander = null; <BR>    function __construct(){ <br><br>    } <BR>    function get_List($zip_name){ <BR>        $file_list = array(); <BR>        $this->_zip_hander = zip_open($zip_name); <BR>        if ( $this->_zip_hander ) { <BR>            while ( $zip_entry = zip_read($this->_zip_hander) ) { <BR>                $file_list[] = array('filename'=>zip_entry_name($zip_entry), <BR>                                    'size'=>zip_entry_filesize($zip_entry), <BR>                                    'compressed_size'=>zip_entry_compressedsize($zip_entry) <BR>                                    ); <BR>        } <BR>            zip_close($this->_zip_hander); <BR>        } <BR>        return $file_list; <BR>    } <BR>    function Extract($zip_name,$folder_name){ <BR>        $this->_zip_hander = zip_open($zip_name); <BR>        if ( !$this->checkDirAndMk($folder_name) ){ <BR>            return false; <BR>        } <BR>        if ( substr($folder_name,-1)!="/" ){ <BR>            $folder_name .= "/"; <BR>        } <BR>        if ( $this->_zip_hander ) { <BR>            while ( $zip_entry = zip_read($this->_zip_hander) ) { <BR>                $file_info = array('filename'=>zip_entry_name($zip_entry), <BR>                                    'size'=>zip_entry_filesize($zip_entry), <BR>                                    'compressed_size'=>zip_entry_compressedsize($zip_entry) <BR>                                    ); <BR>                $new_file_name = $folder_name.$file_info['filename']; <BR>                $buf = ""; <BR>                if (zip_entry_open($this->_zip_hander, $zip_entry, "r")) { <BR>                    $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry)); <BR>                    zip_entry_close($zip_entry); <BR>                } <BR>                if ( $fp = fopen($new_file_name,"w") ){ <BR>                    fwrite($fp,$buf); <BR>                    fclose($fp); <BR>                } <BR>        } <BR>            zip_close($this->_zip_hander); <BR>            return true; <BR>        } <BR>        else { <BR>            return false; <BR>        } <BR>    } <BR>    /** <BR>     * 检查目录是否存在，如果不存在是否建立 <BR>     * <BR>     * @param string $dirname        完整的实际路径 <BR>     * @param bool $mk                如果不存在是否创建 <BR>     * @param int $mode                创建权限 <BR>     * @return bool                    是否创建成功 <BR>     */ <BR>    function checkDirAndMk($dirname,$mk=false,$mode=0777){ <BR>        if ( is_dir($dirname)==true ){ <BR>            return true; <BR>        } <BR>        else { <BR>            if ($mk==false){ <BR>                return false; <BR>            } <BR>            else { <BR>                $dirpath_a = explode('/',$dirname); <BR>                for ($i=0;$i<count($dirpath_a);$i++){ <BR>                    if ( $dirpath_a[$i]=="" ){ <BR>                        continue; <BR>                    } <BR>                    if ( $path==""||is_dir($path) ){ <BR>                        if ( $path=="" ){ <BR>                            if ( substr(PHP_OS, 0, 3)=="WIN" ){ <BR>                                $path = $dirpath_a[$i]; <BR>                            } <BR>                            else { <BR>                                $path .= "/".$dirpath_a[$i]; <BR>                            } <BR>                        } <BR>                        else { <BR>                            $path .= "/".$dirpath_a[$i]; <BR>                        } <BR>                        if ( is_dir($path) ){ <BR>                            continue; <BR>                        } <BR>                        else { <BR>                            @mkdir($path,$mode); <BR>                        } <BR>                    } <BR>                    else { <BR>                        return false; <BR>                    } <BR>                } <BR>                return true; <BR>            } <BR>        } <BR>    } <BR>} <br><br><BR>$z = new Zip; <BR>$lst=$z->get_list('test2.zip'); <BR>foreach ($lst as $val){ <BR>    print_r($val)."\n"; <BR>} <BR>$zip_obj = new zipPeter(); <BR>//$zip_obj->Extract() <BR>$z->Extract('test2.zip', "f:/wytddd", -1 ); <BR>/***/ <br><br>    require_once("zip.lib.php"); <BR>set_time_limit(100); <BR>//要解压的文件路径 <BR>$arch = $_GET["arch"]; <BR>if(!$arch || !file_exists($arch)) <BR>$z = new Zip; <BR>$l=$z->get_list($arch); //得到文件列表 <BR>$z->Extract($arch, "jieya", -1 ); <BR>} <BR>

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