kommando zurück, ich guck doch nochmal...

     datasec[] = $fr;

            $new_offset = strlen(implode("", $this->datasec));

            // ext. file attributes mirrors MS-DOS directory attr byte, detailed
            // at http://support.microsoft.com/support/kb/articles/Q125/0/19.asp

            // now add to central record
            $cdrec = "\x50\x4b\x01\x02";
            $cdrec .="\x00\x00";    // version made by
            $cdrec .="\x0a\x00";    // version needed to extract
            $cdrec .="\x00\x00";    // gen purpose bit flag
            $cdrec .="\x00\x00";    // compression method
            $cdrec .="\x00\x00\x00\x00"; // last mod time & date
            $cdrec .= pack("V",0); // crc32
            $cdrec .= pack("V",0); //compressed filesize
            $cdrec .= pack("V",0); //uncompressed filesize
            $cdrec .= pack("v", strlen($name) ); //length of filename
            $cdrec .= pack("v", 0 ); //extra field length   
            $cdrec .= pack("v", 0 ); //file comment length
            $cdrec .= pack("v", 0 ); //disk number start
            $cdrec .= pack("v", 0 ); //internal file attributes
            $ext = "\x00\x00\x10\x00";
            $ext = "\xff\xff\xff\xff";  
            $cdrec .= pack("V", 16 ); //external file attributes  - 'directory' bit set

            $cdrec .= pack("V", $this -> old_offset ); //relative offset of local header
            $this -> old_offset = $new_offset;

            $cdrec .= $name;  
            // optional extra field, file comment goes here
            // save to array
            $this -> ctrl_dir[] = $cdrec;  

             
        }


        function add_file($data, $name)   

        // adds "file" to archive   
        // $data - file contents
        // $name - name of file in archive. Add path if your want

        {  
            $name = str_replace("\\", "/", $name);  
            //$name = str_replace("\\", "\\\\", $name);

            $fr = "\x50\x4b\x03\x04";
            $fr .= "\x14\x00";    // ver needed to extract
            $fr .= "\x00\x00";    // gen purpose bit flag
            $fr .= "\x08\x00";    // compression method
            $fr .= "\x00\x00\x00\x00"; // last mod time and date

            $unc_len = strlen($data);  
            $crc = crc32($data);  
            $zdata = gzcompress($data);  
            $zdata = substr( substr($zdata, 0, strlen($zdata) - 4), 2); // fix crc bug
            $c_len = strlen($zdata);  
            $fr .= pack("V",$crc); // crc32
            $fr .= pack("V",$c_len); //compressed filesize
            $fr .= pack("V",$unc_len); //uncompressed filesize
            $fr .= pack("v", strlen($name) ); //length of filename
            $fr .= pack("v", 0 ); //extra field length
            $fr .= $name;  
            // end of "local file header" segment
             
            // "file data" segment
            $fr .= $zdata;  

            // "data descriptor" segment (optional but necessary if archive is not served as file)
            $fr .= pack("V",$crc); //crc32
            $fr .= pack("V",$c_len); //compressed filesize
            $fr .= pack("V",$unc_len); //uncompressed filesize

            // add this entry to array
            $this -> datasec[] = $fr;

            $new_offset = strlen(implode("", $this->datasec));

            // now add to central directory record
            $cdrec = "\x50\x4b\x01\x02";
            $cdrec .="\x00\x00";    // version made by
            $cdrec .="\x14\x00";    // version needed to extract
            $cdrec .="\x00\x00";    // gen purpose bit flag
            $cdrec .="\x08\x00";    // compression method
            $cdrec .="\x00\x00\x00\x00"; // last mod time & date
            $cdrec .= pack("V",$crc); // crc32
            $cdrec .= pack("V",$c_len); //compressed filesize
            $cdrec .= pack("V",$unc_len); //uncompressed filesize
            $cdrec .= pack("v", strlen($name) ); //length of filename
            $cdrec .= pack("v", 0 ); //extra field length   
            $cdrec .= pack("v", 0 ); //file comment length
            $cdrec .= pack("v", 0 ); //disk number start
            $cdrec .= pack("v", 0 ); //internal file attributes
            $cdrec .= pack("V", 32 ); //external file attributes - 'archive' bit set

            $cdrec .= pack("V", $this -> old_offset ); //relative offset of local header
    //      &n // bsp; echo "old offset is ".$this->old_offset.", new offset is $new_offset
";
            $this -> old_offset = $new_offset;

            $cdrec .= $name;  
            // optional extra field, file comment goes here
            // save to central directory
            $this -> ctrl_dir[] = $cdrec;  
        }

        function file() { // dump out file   
            $data = implode("", $this -> datasec);  
            $ctrldir = implode("", $this -> ctrl_dir);  

            return   
                $data.  
                $ctrldir.  
                $this -> eof_ctrl_dir.  
                pack("v", sizeof($this -> ctrl_dir)).     // total # of entries "on this disk"
                pack("v", sizeof($this -> ctrl_dir)).     // total # of entries overall
                pack("V", strlen($ctrldir)).             // size of central dir
                pack("V", strlen($data)).                 // offset to start of central dir
                "\x00\x00";                             // .zip file comment length
        }
    }  

    ?>