|
|
|
|
Bookmark this on Delicious
Share on Facebook
 Slashdot It!
Digg  zip_open
Open a ZIP file archive
(PHP 4 >= 4.0.7, PHP 5 >= 5.2.0, PECL zip:1.0-1.9.0)
Code Examples / Notes » zip_openrobert
The zip_entry_read above is wrong. Since the file was opened with popen, you have to read the file in chunks, so zip_entry_read should read: function zip_entry_read(&$res, $nbytes) { $contents = ''; while (!feof($res['fp'])) { $contents .= fread($res['fp'], 8192); } return $contents; } Otherwise, it was a very useful library. Thanks! saulius
Some older PHP versions used to return false if zip_open failed, and newer versions return the number of error (as integer), so instead of this: $zip = zip_open($zip_file); if ($zip) { // consider zip file opened successfully } use this: $zip = zip_open($zip_file); if (is_resource($zip)) { // consider zip file opened successfully } You may also use this function to get the error message by it's number: function zipFileErrMsg($errno) { // using constant name as a string to make this function PHP4 compatible $zipFileFunctionsErrors = array( 'ZIPARCHIVE::ER_MULTIDISK' => 'Multi-disk zip archives not supported.', 'ZIPARCHIVE::ER_RENAME' => 'Renaming temporary file failed.', 'ZIPARCHIVE::ER_CLOSE' => 'Closing zip archive failed', 'ZIPARCHIVE::ER_SEEK' => 'Seek error', 'ZIPARCHIVE::ER_READ' => 'Read error', 'ZIPARCHIVE::ER_WRITE' => 'Write error', 'ZIPARCHIVE::ER_CRC' => 'CRC error', 'ZIPARCHIVE::ER_ZIPCLOSED' => 'Containing zip archive was closed', 'ZIPARCHIVE::ER_NOENT' => 'No such file.', 'ZIPARCHIVE::ER_EXISTS' => 'File already exists', 'ZIPARCHIVE::ER_OPEN' => 'Can\'t open file', 'ZIPARCHIVE::ER_TMPOPEN' => 'Failure to create temporary file.', 'ZIPARCHIVE::ER_ZLIB' => 'Zlib error', 'ZIPARCHIVE::ER_MEMORY' => 'Memory allocation failure', 'ZIPARCHIVE::ER_CHANGED' => 'Entry has been changed', 'ZIPARCHIVE::ER_COMPNOTSUPP' => 'Compression method not supported.', 'ZIPARCHIVE::ER_EOF' => 'Premature EOF', 'ZIPARCHIVE::ER_INVAL' => 'Invalid argument', 'ZIPARCHIVE::ER_NOZIP' => 'Not a zip archive', 'ZIPARCHIVE::ER_INTERNAL' => 'Internal error', 'ZIPARCHIVE::ER_INCONS' => 'Zip archive inconsistent', 'ZIPARCHIVE::ER_REMOVE' => 'Can\'t remove file', 'ZIPARCHIVE::ER_DELETED' => 'Entry has been deleted', ); $errmsg = 'unknown'; foreach ($zipFileFunctionsErrors as $constName => $errorMessage) { if (defined($constName) and constant($constName) === $errno) { return 'Zip File Function error: '.$errorMessage; } } return 'Zip File Function error: unknown'; } $zip = zip_open($zip_file); if (!is_resource($zip)) { die(zipFileErrMsg($zip)); } bisqwit
If your PHP installation does not have the zip_open function, and you can't install it for whatever reason, you can use these functions instead, if the server has access to the "unzip" utility (most Linux systems do). So far I have tested these only in Fedora Core 3. Use at your own risk. <?php function ShellFix($s) { return "'".str_replace("'", "'\''", $s)."'"; } function zip_open($s) { $fp = @fopen($s, 'rb'); if(!$fp) return false; $lines = Array(); $cmd = 'unzip -v '.shellfix($s); exec($cmd, $lines); $contents = Array(); $ok=false; foreach($lines as $line) { if($line[0]=='-') { $ok=!$ok; continue; } if(!$ok) continue; $length = (int)$line; $fn = trim(substr($line,58)); $contents[] = Array('name' => $fn, 'length' => $length); } return Array('fp' => $fp, 'name' => $s, 'contents' => $contents, 'pointer' => -1); } function zip_read(&$fp) { if(!$fp) return false; $next = $fp['pointer'] + 1; if($next >= count($fp['contents'])) return false; $fp['pointer'] = $next; return $fp['contents'][$next]; } function zip_entry_name(&$res) { if(!$res) return false; return $res['name']; } function zip_entry_filesize(&$res) { if(!$res) return false; return $res['length']; } function zip_entry_open(&$fp, &$res) { if(!$res) return false; $cmd = 'unzip -p '.shellfix($fp['name']).' '.shellfix($res['name']); $res['fp'] = popen($cmd, 'r'); return !!$res['fp']; } function zip_entry_read(&$res, $nbytes) { return fread($res['fp'], $nbytes); } function zip_entry_close(&$res) { fclose($res['fp']); unset($res['fp']); } function zip_close(&$fp) { fclose($fp['fp']); } ?> michael
I tried the replacement hack above on Windows2k, here are some fixes needed: replace: return "'".str_replace("'", "'\''", $s)."'"; with: return '"'.str_replace("'", "'\''", $s).'"'; replace: if($line[0]=='-') { $ok=!$ok; continue; } with: if($line[2]=='-') { $ok=!$ok; continue; } replace: $contents[] = Array('name' => $fn, 'length' => $length); with: array_push($contents, Array('name' => $fn, 'length' => $length)); barbarinasv
Function zip_entry_read() written by "bisqwit at iki dot fi" has to be modified to read entire files: <?php function zip_entry_read(&$res, $nbytes) { while (!feof($res['fp'])) { $contents .= fread($res['fp'], $nbytes); } return $contents; } ?> ponsho
For bisqwit at iki dot fi solution of alternative functions there's just one problem when trying to read the file thats because some bug in fread when handling from popen so it just load 8192 bytes here's the function corrected. <?php function zip_entry_read(&$res, $nbytes) { while ($s = fgets($res['fp'],1024)) { $data .= $s; } return $data; } ?> flominator
@bisqwit at iki dot fi: If you're using older versions of PHP this skript might only read the first 8192 bytes. Great thing, anyway!
|
Change Language
zip_close zip_entry_close zip_entry_compressedsize zip_entry_compressionmethod zip_entry_filesize zip_entry_name zip_entry_open zip_entry_read zip_open zip_read ZipArchive::addEmptyDir ZipArchive::addFile ZipArchive::addFromString ZipArchive::close ZipArchive::deleteIndex ZipArchive::deleteName ZipArchive::extractTo ZipArchive::getArchiveComment ZipArchive::getCommentIndex ZipArchive::getCommentName ZipArchive::getFromIndex ZipArchive::getFromName ZipArchive::getNameIndex ZipArchive::getStream ZipArchive::locateName ZipArchive::open ZipArchive::renameIndex ZipArchive::renameName ZipArchive::setArchiveComment ZipArchive::setCommentIndex ZipArchive::setCommentName ZipArchive::statIndex ZipArchive::statName ZipArchive::unchangeAll ZipArchive::unchangeArchive ZipArchive::unchangeIndex ZipArchive::unchangeName |
