复制代码 代码如下:
class zip
{
var $datasec, $ctrl_dir = array();
var $eof_ctrl_dir = "x50x4bx05x06x00x00x00x00";
var $old_offset = 0; var $dirs = Array(".");
function get_List($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; $i<$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 $ret;
}
function Add($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;
}
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($data)) . "x00x00";
}
function add_dir($name)
{
$name = str_replace("\", "/", $name);
$fr = "x50x4bx03x04x0ax00x00x00x00x00x00x00x00x00";
$fr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($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 = "x50x4bx01x02x00x00x0ax00x00x00x00x00x00x00x00x00";
$cdrec .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) );
$cdrec .= pack("v", 0 ).pack("v", 0 ).pack("v", 0 ).pack("v", 0 );
$ext = "xffxffxffxff";
$cdrec .= pack("V", 16 ).pack("V", $this -> old_offset ).$name;
$this -> ctrl_dir[] = $cdrec;
$this -> old_offset = $new_offset;
$this -> dirs[] = $name;
}
function add_File($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)
$fr = "x50x4bx03x04x14x00x00x00x08x00".$hexdtime;
else $fr = "x50x4bx03x04x0ax00x00x00x00x00".$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 = "x50x4bx01x02x00x00x14x00x00x00x08x00";
else $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 );
$this -> old_offset = $new_offset;
$cdrec .= $name;
$this -> ctrl_dir[] = $cdrec;
return true;
}
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);
}
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; $index[$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);
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;
if(!is_dir($to.$pth[$i])) @mkdir($to.$pth[$i],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");
}}
return true;
}
}
/***********************************/
class zipPeter{
    var $_zip_hander = null;
    function __construct(){

    }
    function get_List($zip_name){
        $file_list = array();
        $this->_zip_hander = zip_open($zip_name);
        if ( $this->_zip_hander ) {
            while ( $zip_entry = zip_read($this->_zip_hander) ) {
                $file_list[] = array("filename"=>zip_entry_name($zip_entry),
                                    "size"=>zip_entry_filesize($zip_entry),
                                    "compressed_size"=>zip_entry_compressedsize($zip_entry)
                                    );
        }
            zip_close($this->_zip_hander);
        }
        return $file_list;
    }
    function Extract($zip_name,$folder_name){
        $this->_zip_hander = zip_open($zip_name);
        if ( !$this->checkDirAndMk($folder_name) ){
            return false;
        }
        if ( substr($folder_name,-1)!="/" ){
            $folder_name .= "/";
        }
        if ( $this->_zip_hander ) {
            while ( $zip_entry = zip_read($this->_zip_hander) ) {
                $file_info = array("filename"=>zip_entry_name($zip_entry),
                                    "size"=>zip_entry_filesize($zip_entry),
                                    "compressed_size"=>zip_entry_compressedsize($zip_entry)
                                    );
                $new_file_name = $folder_name.$file_info["filename"];
                $buf = "";
                if (zip_entry_open($this->_zip_hander, $zip_entry, "r")) {
                    $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
                    zip_entry_close($zip_entry);
                }
                if ( $fp = fopen($new_file_name,"w") ){
                    fwrite($fp,$buf);
                    fclose($fp);
                }
        }
            zip_close($this->_zip_hander);
            return true;
        }
        else {
            return false;
        }
    }
    /**
     * 检查目录是否存在，如果不存在是否建立
     *
     * @param string $dirname        完整的实际路径
     * @param bool $mk                如果不存在是否创建
     * @param int $mode                创建权限
     * @return bool                    是否创建成功
     */
    function checkDirAndMk($dirname,$mk=false,$mode=0777){
        if ( is_dir($dirname)==true ){
            return true;
        }
        else {
            if ($mk==false){
                return false;
            }
            else {
                $dirpath_a = explode("/",$dirname);
                for ($i=0;$i<count($dirpath_a);$i++){
                    if ( $dirpath_a[$i]=="" ){
                        continue;
                    }
                    if ( $path==""||is_dir($path) ){
                        if ( $path=="" ){
                            if ( substr(PHP_OS, 0, 3)=="WIN" ){
                                $path = $dirpath_a[$i];
                            }
                            else {
                                $path .= "/".$dirpath_a[$i];
                            }
                        }
                        else {
                            $path .= "/".$dirpath_a[$i];
                        }
                        if ( is_dir($path) ){
                            continue;
                        }
                        else {
                            @mkdir($path,$mode);
                        }
                    }
                    else {
                        return false;
                    }
                }
                return true;
            }
        }
    }
}


$z = new Zip;
$lst=$z->get_list("test2.zip");
foreach ($lst as $val){
    print_r($val)." ";
}
$zip_obj = new zipPeter();
//$zip_obj->Extract()
$z->Extract("test2.zip", "f:/wytddd", -1 );
/***/

    require_once("zip.lib.php");
set_time_limit(100);
//要解压的文件路径
$arch = $_GET["arch"];
if(!$arch || !file_exists($arch))
$z = new Zip;
$l=$z->get_list($arch); //得到文件列表
$z->Extract($arch, "jieya", -1 );
}