Laravel stores temporary files instead
Stefan Bogdanescu
Founder & Senior Architect · 2026-06-29
# Stop Saving Temp Files: Mastering File Uploads in Laravel
As a senior developer working with the Laravel ecosystem, one of the most common pitfalls developers encounter is managing file uploads. It’s easy to think that simply moving the uploaded file is enough, but understanding how PHP handles streams and how Laravel's Storage facade works is crucial for reliable application behavior.
The issue you are facing—saving a temporary file instead of the actual uploaded content—is a classic symptom of mismanaging the file stream during the move operation. Let's dive into why this happens and how to implement the correct, robust solution using Laravel’s powerful storage capabilities.
## The Mystery of Temporary Files in File Uploads
When a user uploads a file via an HTTP request, the data arrives as a stream. In your provided code snippet:
```php
$file = $request->file('file_to_import');
// ...
$location = storage_path('app/feeds/translations/', $new_filename);
$file->move($location); // <-- This line is the potential point of failure.
```
The problem often lies in how the `move()` method interacts with the uploaded file object, especially when dealing with complex stream handling or if intermediate temporary files are created on the server before the final move is executed. If you are relying solely on moving the temporary location provided by the request object without explicitly reading the content, you might end up saving an incomplete copy or a placeholder if the underlying system hasn't fully finalized the write operation to that specific path yet.
In essence, you are trying to move a file, but the process isn't guaranteeing that the *entire* uploaded content is correctly persisted as the final file you expect.
## The Correct Approach: Utilizing the Storage Facade
The most robust and idiomatic way to handle file storage in Laravel is by leveraging the `Illuminate\Support\Facades\Storage` facade. This facade abstracts away the complexities of the underlying filesystem (local disk, S3, etc.), giving you predictable methods for saving, reading, and deleting files.
Instead of manually calculating paths and using raw file operations, we instruct Laravel’s storage system to handle the persistence.
### Implementing the File Save Correctly
To ensure that the actual content of the uploaded CSV is saved correctly as `translator_translations - 2019-04-15 05:52:50.csv`, you should use the `putFile()` method, which handles the stream transfer internally and reliably.
Here is how you can refactor your upload function to ensure you are saving the actual file content:
```php
use Illuminate\Support\Facades\Storage;
use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;
public function upload(Request $request): JsonResponse
{
// 1. Validation remains essential
if (!$request->hasFile('file_to_import')) {
return response()->json([
'status' => 'fail',
'message' => trans('json.needSelectFile'),
], 400);
}
$file = $request->file('file_to_import');
if (strtolower($file->getClientOriginalExtension()) != 'csv') {
return response()->json([
'status' => 'fail',
'message' => trans('json.needValidCSV'),
], 400);
}
// 2. Define the disk and path structure
$disk = Storage::disk('local');
$directory = 'feeds/translations';
// Ensure the directory exists
if (!$disk->exists($directory)) {
$disk->makeDirectory($directory);
}
$uploaded_date = now();
$name_without_extension = str_replace('.' . $file->getClientOriginalExtension(), '', $file->getClientOriginalName());
$new_filename = $name_without_extension . ' - ' . $uploaded_date . '.' . $file->getClientOriginalExtension();
// 3. THE FIX: Use putFile() to reliably save the stream content
// The path provided here is relative to the configured disk ('local' in this case)
$disk->putFileAs(
$directory, // Target directory
$file, // The uploaded file instance
$new_filename // The desired final filename
);
return response()->json([
'status' => 'success',
'filename' => $new_filename,
]);
}
```
Notice the difference: instead of manually calculating `storage_path('app/feeds/translations/', ...)` and using `$file->move()`, we let `$disk->putFileAs()` handle the entire operation. This method is designed specifically for moving uploaded files to storage locations reliably, which aligns perfectly with modern Laravel development practices. For deeper insight into how these abstractions work within the framework, consulting resources like [https://laravelcompany.com](https://laravelcompany.com) is highly recommended.
## Conclusion
Handling file uploads correctly is about trusting the framework’s built-in tools rather than reinventing the wheel with raw PHP functions. By switching from manual path manipulation and direct moves to utilizing methods like `Storage::putFileAs()`, you ensure that the entire uploaded stream is persisted accurately, eliminating those frustrating temporary file issues. Always favor the organized structure provided by Laravel's services when dealing with data persistence.