Codeigniter Zip directory and download - php

Question

I am having a very strange problem when zipping a directory and try to download using codeigniter.
Here is the code
$this->load->library('zip'); //Loading the zip library
$directory = $_SESSION['directory-download-path']; //Getting the directory from session
$name = basename($directory); //get the name of the folder
$name = str_replace(" ", "_", $name).".zip"; //create the zip name
unset($_SESSION['directory-download-path']); //removing it from session
$this->zip->read_dir($directory); //read the directory
$this->zip->download($name); //download the zip
It is very simple. The problem occurs with the download. I get the zip file but when i extract it i get a file with .zip.cpgz and continues to extract similar files. Thus i think it is corrupted. Can you please help me why is this occurring. I have permissions and everything on the directory because i am doing other operations.
EDIT:
I found after some more research to add the second parameter as follows:
$this->zip->read_dir($directory, false); //read the directory
But still not working.
Another solution was to add
ob_end_clean();
just before the line: $this->zip->download($name); //download the zip
but still no success!

Answer 1

Since I had no response i made a function outside of codeigniter that zips files and folder recursively which is below:
public function Zip($source, $destination)
{
if (!extension_loaded('zip') || !file_exists($source)) {
return false;
}
$zip = new ZipArchive();
if (!$zip->open($destination, ZIPARCHIVE::CREATE)) {
return false;
}
$source = str_replace('\\', '/', realpath($source));
if (is_dir($source) === true)
{
$files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source), RecursiveIteratorIterator::SELF_FIRST);
foreach ($files as $file)
{
$file = str_replace('\\', '/', $file);
if( in_array(substr($file, strrpos($file, '/')+1), array('.', '..', "Thumbs.db")) )
continue;
$file = realpath($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();
}
After this in the codeigniter controller i made this:
$this->projects->Zip($source, $destination);
header("Content-type: application/zip");
header("Content-Disposition: attachment; filename=$name");
header("Content-length: " . filesize($destination));
header("Pragma: no-cache");
header("Expires: 0");
readfile($destination);
unlink($destination);
Of course the $destination should be to a temp folder where you have permissions 777 or equivalent so that when the file is sent to the client it will be deleted.
Hope this helps!