Método upload do Controller UploadController, projeto Symfony 4. Código criado na série da CEL sobre Upload de Arquivos com Symfony 4 em youtube.com/CodeExpertsLearning

methodUploadSf4.php

<?php
  // ... Controller completo: https://github.com/CodeExpertsLearning/serie-symfony-4-upload-de-arquivos/blob/master/src/Controller/UploadController.php
  /**
	 * @Route("/upload", name="upload", methods="POST")
	 */
    public function upload(Request $request)
    {
    	try {
		    $files = $request->files->get('file');
		    foreach ($files as $f) {
			    $newName = md5($f->getClientOriginalName()) . uniqid() . time() . '.' . $f->guessExtension();
			    $f->move($this->getParameter('upload_folder'), $newName);
		    }
		    $this->addFlash('success', 'Upload realizado com sucesso!');
		    return $this->redirectToRoute('home_upload');
	    } catch (\Exception $e) {
		    $this->addFlash('error', 'Erro ao realizar upload: ' . $e->getMessage());
		    return $this->redirectToRoute('home_upload');
	    }
    }
// ...