How to save download zip to public folder in laravel? - php

Question

I want to download a folder into ZIP format with my code below.
Actually this work perfectly for download folder to zip only.
But i want the zip file also save to public folder in public/folder.
i use laravel and ziparchive
Please help me
public function downloadzip($id_pra) {
$dcmt = DB::table('document')->select(DB::raw(" max(id) as id"))->where('id_praapplication',$id_pra)->groupBy('type')->pluck('id');
$files = Document::whereIn('id', $dcmt)->get();
$url = url('')."/storage/uploads/file/".$id_pra."/";
# create new zip opbject
$zip = new \ZipArchive();
# create a temp file & open it
$tmp_file = tempnam('.','');
$zip->open($tmp_file, \ZipArchive::CREATE);
# loop through each file
foreach($files as $file){
$url2 = $url.$file->upload;
$url2 = str_replace(' ', '%20', $url2);
if (!function_exists('curl_init')){
die('CURL is not installed!');
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url2);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$output = curl_exec($ch);
curl_close($ch);
$download_file = $output;
$type = substr($url2, -5, 5);
#add it to the zip
$zip->addFromString(basename($url.$file->upload.'.'.$type),$download_file);
}
# close zip
$zip->close();
# send the file to the browser as a download
ob_start();
$strFile = file_get_contents($tmp_file);
header('Content-disposition: attachment; filename=DOC-'.$id_pra.'-'.$url.'.zip');
header('Content-type: application/zip');
echo $tmp_file;
while (ob_get_level()) {
ob_end_clean();
}
readfile($tmp_file);
exit;
}

Answer 1

Instead of creating a temp file you can just create the ZIP file directly and later use the Filesystem API to download it.
public function downloadzip($id_pra) {
$dcmt = DB::table('document')->select(DB::raw(" max(id) as id"))->where('id_praapplication',$id_pra)->groupBy('type')->pluck('id');
$files = Document::whereIn('id', $dcmt)->get();
$url = url('')."/storage/uploads/file/".$id_pra."/";
// create new zip object
$zip = new \ZipArchive();
// store the public path
$publicDir = public_path();
// Define the file name. Give it a unique name to avoid overriding.
$zipFileName = 'Documents.zip';
// Create the ZIP file directly inside the desired folder. No need for a temporary file.
if ($zip->open($publicDir . '/folder/' . $zipFileName, \ZipArchive::CREATE) === true) {
// Loop through each file
foreach($files as $file){
$url2 = $url.$file->upload;
$url2 = str_replace(' ', '%20', $url2);
if (!function_exists('curl_init')){
die('CURL is not installed!');
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url2);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$output = curl_exec($ch);
curl_close($ch);
$download_file = $output;
$type = substr($url2, -5, 5);
#add it to the zip
$zip->addFromString(basename($url.$file->upload.'.'.$type),$download_file);
}
// close zip
$zip->close();
}
// Download the file using the Filesystem API
$filePath = $publicDir . '/folder/' . $zipFileName;
if (file_exists($filePath)) {
return Storage::download($filePath);
}
}
Note:
I would extract the CURL part to a method fetchFile($url); which returns the downloaded file, but this is out of scope of this question.