42     var $header = null;  variable in File_Archive_Reader_Zip
89         if ($this->header !== null && $this->data === null) {
90             $toSkip = $this->header['CLen'];
101         $header = $this->source->getData(4);
102         if (PEAR::isError($header)) {
103             return $header;
105         if ($header == "\x50\x4b\x03\x04") {
107             $header = $this->source->getData(26);
108             if (PEAR::isError($header)) {
109                 return $header;
111             $this->header = unpack(
113                 $header);
116             if ($this->header['Method'] != 0 &&
117                 $this->header['Method'] != 8 &&
118                 $this->header['Method'] != 12) {
120                         "handle compression method {$this->header['Method']}");
122             if ($this->header['Flag'] & 1) {
126             if ($this->header['Flag'] & 8) {
132                 $this->header['CRC'] = $centralDirEntry['CRC'];
133                 $this->header['CLen'] = $centralDirEntry['CLen'];
134                 $this->header['NLen'] = $centralDirEntry['NLen'];
136             if ($this->header['Flag'] & 32) {
140             if ($this->header['Flag'] & 64) {
146                 7=>$this->header['NLen'],
148                     ($this->header['Time'] & 0xF800) >> 11,         //hour
149                     ($this->header['Time'] & 0x07E0) >> 5,          //minute
150                     ($this->header['Time'] & 0x001F) >> 1,          //second
151                     ($this->header['Date'] & 0x01E0) >> 5,          //month
152                     ($this->header['Date'] & 0x001F)     ,          //day
153                    (($this->header['Date'] & 0xFE00) >> 9) + 1980   //year
159             $this->currentFilename = $this->source->getData($this->header['File']);
161             $error = $this->source->skip($this->header['Extra']);
168                             'CRC' => $this->header['CRC'],
169                             'CLen' => $this->header['CLen']
263         $this->data = $this->source->getData($this->header['CLen']);
267         if ($this->header['Method'] == 8) {
270         if ($this->header['Method'] == 12) {
274         if (crc32($this->data) != $this->header['CRC']) {
291             $seek = 30 + $this->header['File'] + $this->header['Extra'] + $this->header['CLen'];
297             $size = 30 + $this->header['File'] + $this->header['Extra'] + $this->header['CLen'];
476             $header = $this->source->getData(16);
479             if (PEAR::isError($header)) {
480                 return $header;
483             $header = unpack('VCRC/VCLen/VNLen/vFileLength/vExtraLength', $header);
484             $this->centralDirectory[] = array('CRC'  => $header['CRC'],
485                                               'CLen' => $header['CLen'],
486                                               'NLen' => $header['NLen']);
487             $nbSkipped += $this->source->skip(14 + $header['FileLength'] + $header['ExtraLength']);