/********************
作者未知
整理: Longbill ( www.longbill.cn ; longbill.cn@gmail.com )
*** ******************/
class zip
{
var $datasec, $ctrl_dir = array();
var $eof_ctrl_dir = "x50x4bx05x06x00x00x00x00";
var $old_offset = 0; var $dirs = Array(".");
函數 get_List($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 {
$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['評論'] = $header['評論'];
$info['folder'] = ($header['external']==0x41FF0010||$header['external']==16)?1:0;
$info['index'] = $header['index'];$info['status'] = $header['status'];
$ret[]=$info; 取消設定（$標題）；
}
返回 $ret;
}
函數 Add($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],$fn[0],$袖珍的）;
}
回傳$ret;
}
函數get_file()
{
implode('', $this -> ctrl_dir);
回傳$data 。 v', sizeof($this -> ctrl_dir))。 🎜> 函數add_dir($name)
{
$name = str_replace("\", "/", $name); $ 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);
$這個-> datasec[] = $fr;
$new_offset = strlen("", $this->datasec));
$cdrec =「x50x4bx01x02x00x00x0ax00x00x50x4bx01x02x00x00x000x00x00x0x .=包（“V”，0）。 0).pack("V",0).pack("v", strlen($name));
$cdrec .= pack("v", 0 ).pack(" v", 0). pack("v", 0).pack("v", 0);
$ext =“xffxffxffxff”;
$cdrec .= pack("V", 16 ).pack("V", $this -> old_offset ).$name;
$這個 -> ctrl_dir[] = $cdrec;
$這個 -> 舊偏移量 = $新偏移量；
$這個 -> 目錄[] = $名稱;
}
函式 add_File($data, $name, $compact = 1)
{
$name
$dtime = dechex($this->DosTime());
$hexdtime = 'x' 。 $dtime[5]
。
eval('$hexdtime = "' . $hexdtime . '";');
if($compact)
$fr = "x50x4bx03x04x14x00x00x00x08x00".$hexdtime;
else $fr = "x50x4bx03x04x0ax00x00x00x00x00".$hexdtime;
$unc_len = strlen($data); $crc=crc32($數據);
if($compact){
$zdata = gzcompress($data); $c_len = strlen($zdata);
$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
}其他{
$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);
$這個 -> datasec[] = $fr;
$new_offset = strlen(implode('', $this->datasec));
if($compact)
$cdrec = "x50x4bx01x02x00x00x14x00x00x00x08x01x02x00x00x14x00x00x00x08x00";
其他 $cdrec = "x50x4bx01x02x14x00x0ax00x00x00x00x00";
$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 );
$這個 -> 舊偏移量 = $新偏移量；
$cdrec .= $name;
$這個 -> ctrl_dir[] = $cdrec;
回傳 true;
}
函數 DosTime() {
$timearray = getdate();
if ($timearray['year'] $timearray['year'] = 1980; $timearray['mon'] = 1;
$timearray['mday'] = 1; $timearray['小時'] = 0;
$timearray['分鐘'] = 0; $timearray['秒'] = 0;
}
return (($timearray['year'] - 1980) ($timearray['分鐘'] >1);
}
函數擷取 ($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 {
@fs;
$header = $this->ReadCentralFileHeaders($zip);
$header['index'] = $i; $pos_entry=ftell($zip);
@rewind($zip); fseek($zip, $header['偏移']);
if(in_array("-1",$index)||in_array($i,$index))
$stat[$header['filename']]=$this->ExtractFile($head>ExtractFile($header. $to, $zip);
}
fclose($zip);
返回 $stat;
}
函數 ReadFileHeader($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['壓縮'] = $data['壓縮'];$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)> mtime']&0x07E0)>>5;
$sec
$m
$header['mtime'] = mktime($小時)
}else{$header['mtime'] = time();}
$header['stored_filename'] = $header['filename'];
$header['status'] = "ok";
回 $header;
}
函數 ReadCentralFileHeaders($zip){
$binary_data = fread($zip, 46);
$header = unpack('vchkid/vid/vversion/vversion_extracted/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_lentern/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_lentern/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_lentern/vmxtra_lentern/Fvextra);
if ($header['filename_len'] != 0)
$header['filename'] = fread($zfilename_len']);
else $header['檔案名稱'] = '';
if ($header['extra_len'] != 0)
$header['extra'] = fread($zip, $header['extra'] = fread($zip, $header['extra_lener['extra_lener》);
else $header['extra'] = '';
if ($header['comment_len'] != 0)
$header['comment'] = fread($zip, $header['comment_lener['comment_lener》);
else $header['comment'] = '';
if ($header['mdate'] && $header['mtime'])
{
$hour = {
$hour = ($header[0mtime)> $分鐘 ($header['mtime'] & 0x07E0) >> 5;
$seconde = ($header['mtime'] & 0x001F) = ($header['mtime'] & 0x001F)*2;
$year = (($header['mdate'] & 0xFE00) >>9) + 1980;
$month = ($header['mdate'] & 0x01E0) >>> 5;
$header['mtime'] = mktime($小時, $分鐘, $秒, $月, $日, $年);
} else {
$header['mtime'] = time();
}
$header['stored_filename'] = $header['filename'];
$header['status'] = 'ok';
if (substr($header['檔案名稱'], -1) == '/')
$header['external'] = 0x41FF0010;
回 $header;
}
函數 ReadCentralDir($zip,$zip_name)
{
$size = filesize($zip_name);
if ($size 其他$maximum_size=277;
@fseek($zip, $size-$maximum_size);
$pos = ftell($zip); $位元組 = 0x00000000;
while ($pos {
$byte = @fread($zip, 1); $位元組=($位元組 if ($bytes == 0x504b0506){ $pos++; 休息； } $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['條目'] = $data['條目'];
$centd['disk_entries'] = $data['disk_entries'];
$centd['offset'] = $data['offset'];$centd['disk_start'] = $data['disk_start'];
$centd['size'] = $data['size']; $centd['磁碟'] = $data['磁碟'];
返回 $centd;
}
函數ExtractFile($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]) 繼續;$pthss.=$pth[$i]. 「/」；
if(!is_dir($to.$pthss)) @mkdir($to.$pthss,0777);
}
if (!($header['external']==0x41FF0010)&&!($header['external']==16)) {
{
壓縮']==0)
{
$fp = @fopen($to.$header['檔案名稱'], 'wb');
if(!$fp) return(-1);
$size = $header['compressed_size'];
while ($size != 0)
{
$read_size = ($size $read_size = ($size $buffer = fread($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.$header['檔案名稱'].'.gz','wb');
if(!$fp) return(-1);
$binary_data = pack('va1a1Va1a1', 0x8b1f, Chr($header['壓縮']),
Chr(0x00), Ctime(3),
fwrite($fp, $binary_data, 10);
$size = $header['compressed_size'];
while ($size != 0)
{
$read_size = ($size $buffer = fread($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.$header['filename'].'.gz','rb') 或 die("Cette archive est compress");
if(!$gzp) return(-2);
$fp = @fopen($to.$header['檔案名稱'],'wb');
if(!$fp) return(-1);
$size = $header['size'];
while ($size != 0)
{
$read_size = ($size $buffer = gzread($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['檔案名稱'].'.gz');
}}
回傳 true；
}
}
?>
壓縮檔案下載
以上就介紹了真正的ZIP檔案操作類php，包括了方面的內容，希望對PHP教程有興趣的朋友有幫助。
