How to [recursively] Zip a directory in PHP?

Question

Directory is something like:

home/
    file1.html
    file2.html
Another_Dir/
    file8.html
    Sub_Dir/
        file19.html

I am using the same PHP Zip class used in PHPMyAdmin http://trac.seagullproject.org/browser/branches/0.6-bugfix/lib/other/Zip.php . I'm not sure how to zip a directory rather than just a file. Here's what I have so far:

$aFiles = $this->da->getDirTree($target);
/* $aFiles is something like, path => filetime
Array
(
    [home] => 
    [home/file1.html] => 1251280379
    [home/file2.html] => 1251280377
    etc...
)

*/
$zip = & new Zip();
foreach( $aFiles as $fileLocation => $time ){
    $file = $target . "/" . $fileLocation;
    if ( is_file($file) ){
        $buffer = file_get_contents($file);
        $zip->addFile($buffer, $fileLocation);
    }
}
THEN_SOME_PHP_CLASS::toDownloadData($zip); // this bit works ok

but when I try to unzip the corresponding downloaded zip file I get "operation not permitted"

This error only happens when I try to unzip on my mac, when I unzip through the command line the file unzips ok. Do I need to send a specific content type on download, currently 'application/zip'

Answer 1

Try this link <-- MORE SOURCE CODE HERE

/** Include the Pear Library for Zip */
include ('Archive/Zip.php');

/** Create a Zipping Object...
* Name of zip file to be created..
* You can specify the path too */
$obj = new Archive_Zip('test.zip');
/**
* create a file array of Files to be Added in Zip
*/
$files = array('black.gif',
'blue.gif',
);

/**
* creating zip file..if success do something else do something...
* if Error in file creation ..it is either due to permission problem (Solution: give 777 to that folder)
* Or Corruption of File Problem..
*/

if ($obj->create($files)) {
// echo 'Created successfully!';
} else {
//echo 'Error in file creation';
}

?>; // We'll be outputting a ZIP
header('Content-type: application/zip');

// It will be called test.zip
header('Content-Disposition: attachment; filename="test.zip"');

//read a file and send
readfile('test.zip');
?>;

Answer 2

Here is a simple function that can compress any file or directory recursively, only needs the zip extension to be loaded.

function Zip($source, $destination)
{
    if (extension_loaded('zip') === true)
    {
     if (file_exists($source) === true)
     {
      $zip = new ZipArchive();

      if ($zip->open($destination, ZIPARCHIVE::CREATE) === true)
      {
       $source = realpath($source);

       if (is_dir($source) === true)
       {
        $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source), RecursiveIteratorIterator::SELF_FIRST);

        foreach ($files as $file)
        {
         $file = realpath($file);

         if (is_dir($file) === true)
         {
          $zip->addEmptyDir(str_replace($source . '/', '', $file . '/'));
         }

         else if (is_file($file) === true)
         {
          $zip->addFromString(str_replace($source . '/', '', $file), file_get_contents($file));
         }
        }
       }

       else if (is_file($source) === true)
       {
        $zip->addFromString(basename($source), file_get_contents($source));
       }
      }

      return $zip->close();
     }
    }

    return false;
}

Call it like this:

Zip('/folder/to/compress/', './compressed.zip');

Answer 3

I write a recursive function to zip a directory with PHP. This function works both for file and directory.