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ZipArchive function problems

Posted on 2010-08-13
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Last Modified: 2012-05-10
I'm having some difficulty with ZipArchive functions in PHP.

In this code, I am getting an error value of 1 which is, for some reason not found in the zipFileErrMsg function.
The file DOES exist in the path passed to the ZipArchive->open() function.

I'm not sure what is going on as this is essentially the same code that I use in another script that works like a charm.

And another thing, I cannot run this script on WAMP because my version of PHP doesn't have php_zip.dll. Any ideas on that?

Can you guys see anything I may be doing wrong?

<?php

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';
}
  
require_once "libs/Core_cron.php";
set_time_limit(0);

$user = new User;
$inv = new Inventory;

// This loads a list of records from a table into the $files array
$files = $inv->loadImportFiles();

if(count($files) <= 0)
{
  echo "NO FILES TO IMPORT"."<br>";
  exit;
}
foreach($files as $key=>$file)
{
  $file_temp = $file['file_name'];
  $file['file_name'] = 'file_uploads/'.$file['file_name'];
  $path_parts = pathinfo($file['file_name']);
  $user_id = $file['user_id'];
  if(strtolower($path_parts['extension']) == 'zip') {
    echo "PROCESSING ZIP FILE: ".$file['file_name']."<br>";

    // this shows the correct filename and it does exist in the path.
    echo "FileName: ".$file['file_name']."<br>";

    $zip = new ZipArchive();
    $res = $zip->open($file['file_name']);
    if (is_resource($res)) {
      // Only one file in the zip
      $zippedfile = $zip->statIndex(0);
      $path_parts = pathinfo($zippedfile['name']);

      echo "UNZIPPING FILE: ".$zippedfile['name']."<br>";
      $zip->extractTo('file_uploads/', $zippedfile['name']);
      $zip->close();      
      // delete the zip file
      unlink($file['file_name']);     

      // rename the file to include the user_id and date marker in the filename
      $filename = 'file_uploads/'.$user_id.'_'.$path_parts['filename'].'_'.date('m_d_Y').'.'.$path_parts['extension'];
      rename('file_uploads/'.$zippedfile['name'], $filename);

      // Remove the double line feeds, if any in the file
      $filestr = preg_replace('`[\r\n]+`',"\n", file_get_contents($filename));
      $fp = fopen($filename, "w+");
      fwrite($fp, $filestr);
      fclose($fp);                       
      $file['file_name'] = $filename;
    } else {
      // returning "1:Zip File Function error: unknown"
      die($res.":".zipFileErrMsg($res));
    }
  }
  /* Dont want to do this until I get the file unzipped.
  // import the file
  if($inv->importFile($file['user_id'], $file['file_name'], $file['file_id'], null, true))
  { 
    echo "DONE IMPORTING FILE: ".$file['file_name']."<br>";
  }
  */
}
?>

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Question by:EddieShipman
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6 Comments
 
LVL 6

Expert Comment

by:nitinsawhney
ID: 33432127
Try using absolute path instead of relative for e.g. /var/www/somedir/file_uploads
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Author Comment

by:EddieShipman
ID: 33432275
OK, will use
dir(__FILE__).'file_uploads/'.$file['file_name'];

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Author Comment

by:EddieShipman
ID: 33432342
I meant...
dirname(__FILE__).'file_uploads/'.$file['file_name'];

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LVL 26

Author Comment

by:EddieShipman
ID: 33432369
Well, still didn't work. Output:
PROCESSING ZIP FILE: /home/listinve/public_html/file_uploads/32_InventoryMaster.zip
FileName: /home/listinve/public_html/file_uploads/32_InventoryMaster.zip
1:Zip File Function error: unknown

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LVL 26

Author Comment

by:EddieShipman
ID: 33432406
The file IS a valid zip file as I can open the same file in JZip, 7Zip and WinZip.
The file is also one that was previously processed by my other script that uses
essentially the same code.

That script opens an IMAP mailbox, and takes the zip from the message attachments, copies it
to /file_uploads/temp directory and then opens it and unzips the file to the /file_uploads/ directory.

Been working like a charm for over 2 weeks.

I can't test this locally because my WAMP installation didn't include php_zip.dll and when I try to enable php_zip extension I get Apache errors after the initial error of not being able to find the php_zip.dll file.
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LVL 26

Accepted Solution

by:
EddieShipman earned 0 total points
ID: 33445436
Ok, I took some of the code on how to handle the zip file from the PHP docs,
in the comment by saulius at solmetra dot lt here: http://php.net/manual/en/function.zip-open.php.

However, this is where the problem was happening:

if (is_resource($res)) {

It just needed to be like this:
if ($res ===TRUE) {

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