How to create Zip file and download in CakePhp? - php

Question

I'm trying to create zip files using CakePhp 1.3. The file descriptions are stored in database. In my controller I'm using the following logic.
// Fetching File description form database.
$this->view = 'Media';
$user_id=$this->Session->read('userData.User.id');
$condition = "Document.isdeleted = '0' AND Document.project_id='". $project_id."'";
$projectDocumentList = $this->Document->find("all",array('conditions'=>$condition,'fields'=>array('Document.id','Document.document_name','Document.path'),'order' => array('Document.id ASC')));
$this->set('projectDocumentList',$projectDocumentList);
if(!empty($projectDocumentList)){
$fileNames = "";
$fileNamesArr = array();
foreach($projectDocumentList as $projectDocument){
$fileNamesArr[ ]= $projectDocument['Document']['document_name'];
}
}
// Making zip
$archive_file_name='myFile.zip';
$file_path= "my_file_path";// Here I'm using my server basepath
$zip = new ZipArchive();
if ($zip->open($archive_file_name, ZIPARCHIVE::CREATE )!==TRUE) {
exit("cannot open <$archive_file_name>\n");
}
foreach($fileNamesArr as $files)
{
$zip->addFile($file_path.$files,$files);
//echo $file_path.$files."<br>"; // This can show the file in browser
}
$zip->close();
header("Content-type: application/zip");
header("Content-Disposition: attachment; filename=$archive_file_name");
header("Pragma: no-cache");
header("Expires: 0");
readfile("$archive_file_name");
exit;
Now the zip file download as myFile.zip, but when I'm going to open that file, it throws an error "The archive is either in unknown format or damaged".

Answer 1

Create Zip File of whole folder
// Get real path for our folder
$rootPath = realpath('folder-to-zip');
// Initialize archive object
$zip = new ZipArchive();
$zip->open('file.zip', ZipArchive::CREATE | ZipArchive::OVERWRITE);
// Create recursive directory iterator
/** #var SplFileInfo[] $files */
$files = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($rootPath),
RecursiveIteratorIterator::LEAVES_ONLY
);
foreach ($files as $name => $file)
{
// Skip directories (they would be added automatically)
if (!$file->isDir())
{
// Get real and relative path for current file
$filePath = $file->getRealPath();
$relativePath = substr($filePath, strlen($rootPath) + 1);
// Add current file to archive
$zip->addFile($filePath, $relativePath);
}
}
// Zip archive will be created only after closing object
$zip->close();
And than pass the path of the zip file to the view.
$this->set('Zip_path'.zip_file_name);