How to upload multiple files with symfony 4?

by lindsey.homenick , in category: PHP Frameworks , 2 months ago

How to upload multiple files with symfony 4?

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1 answer

by dalton_moen , 2 months ago

@lindsey.homenick 

To upload multiple files with Symfony 4, you can follow these steps:

  1. Create a form to handle the file uploads: Inside your Symfony controller, create a form using the createFormBuilder method. Add a field of type FileType::class to the form for each file you want to upload. Set the option multiple to true to allow multiple file selection. Render the form in your Twig template using form_widget(form).
  2. Process the uploaded files in your controller: Handle the form submission in your controller method. Use the handleRequest method of the form to populate the form data and validate it. Check if the form is valid using the isSubmitted and isValid methods. If the form is valid, retrieve the uploaded files using the getData method. This will return an array of UploadedFile objects. Loop through each uploaded file and move it to the desired location using the move method. You can use the getOriginalName method to obtain the original filename. Optionally, you can also store the file information in your database.


Here's an example of how the code might look like:

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// Controller method
public function uploadFiles(Request $request)
{
    $form = $this->createFormBuilder()
        ->add('files', FileType::class, [
            'multiple' => true,
        ])
        ->getForm();

    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid()) {
        $files = $form->get('files')->getData();

        foreach ($files as $file) {
            $fileName = $file->getClientOriginalName();
            $file->move(
                $this->getParameter('upload_directory'),
                $fileName
            );

            // Optional: store file information in your database
        }

        // Handle success message or redirect as needed
    }

    return $this->render('upload_files.html.twig', [
        'form' => $form->createView(),
    ]);
}


Remember to replace upload_directory with the path to the directory where you want to store the uploaded files.


Don't forget to handle any error checking, validation, or security measures that may be necessary in your specific use case.