A simple symfony registration script. Entity - Form - Controller

User.php

<?php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraint as Assert;
/**
 * User
 *
 * @ORM\Table()
 * @ORM\Entity
 */
class User
{
    /**
     * @var integer
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var string
     * @Assert\NotBlank()
     * @ORM\Column(name="name", type="string", length=255)
     */
    private $name;

    /**
     * @var string
     * @Assert\NotBlank()
     * @Assert\Email()
     * @ORM\Column(name="email", type="string", length=255)
     */
    private $email;

    /**
     * @var string
     * @Assert\NotBlank()
     * @ORM\Column(name="password", type="string", length=255)
     */
    private $password;


    /**
     * Get id
     *
     * @return integer 
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set name
     *
     * @param string $name
     * @return User
     */
    public function setName($name)
    {
        $this->name = $name;

        return $this;
    }

    /**
     * Get name
     *
     * @return string 
     */
    public function getName()
    {
        return $this->name;
    }

    /**
     * Set email
     *
     * @param string $email
     * @return User
     */
    public function setEmail($email)
    {
        $this->email = $email;

        return $this;
    }

    /**
     * Get email
     *
     * @return string 
     */
    public function getEmail()
    {
        return $this->email;
    }

    /**
     * Set password
     *
     * @param string $password
     * @return User
     */
    public function setPassword($password)
    {
        $this->password = password_hash($password, PASSWORD_BCRYPT);

        return $this;
    }

    /**
     * Get password
     *
     * @return string 
     */
    public function getPassword()
    {
        return $this->password;
    }
}

UserController.php

<?php

namespace AppBundle\Controller;

use AppBundle\Entity\User;
use AppBundle\Form\UserLogin;
use AppBundle\Form\UserRegister;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class UserController extends Controller
{

    /**
     * Registers a new user to the Mysql DB
     *
     * @Route("/register", name="register_user")
     * @Template()
     * @return array
     */
    public function indexAction()
    {
        $model = new User();
        $form = $this->createForm(new UserRegister(), $model);

        if($form->isValid() && $form->isSubmitted()) {
            $em = $this->getDoctrine()->getManager();
            $em->persist($model);
            $em->flush();

            return $this->redirect($this->generateUrl('home_controller'));
        }
        return ['form' => $form->createView()];
    }
    }

UserRegister.php

<?php

namespace AppBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class UserRegister extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
                ->add('name', 'text', ['label' => 'Enter your name'])
                ->add('email','text', ['label' => 'Enter your email'])
                ->add('password','password', ['label' => 'Enter your password']);
    }

    public function configureOptions(OptionsResolver $resolver)
    {

    }

    public function getName()
    {
        return 'app_bundle_user_register';
    }
}