How to create form in Symfony?
1 answer
@lizzie
Symfony provides a Form component that makes it easy to create and handle forms in your PHP applications. Here's an example of how you can create a form in Symfony:
- Create a form class
First, you'll need to create a form class that represents your form. This can be done by extending the SymfonyComponentFormAbstractType class and implementing the buildForm() method:
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use SymfonyComponentFormAbstractType; use SymfonyComponentFormFormBuilderInterface; class MyFormType extends AbstractType { public function buildForm(FormBuilderInterface $builder, array $options) { // Add form fields here } } |
- Add form fields
Next, you'll need to add the form fields to your form. This is done by calling the add() method on the $builder object, which represents the form builder:
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public function buildForm(FormBuilderInterface $builder, array $options) { $builder ->add('name', TextType::class) ->add('email', EmailType::class) ->add('message', TextareaType::class) ->add('submit', SubmitType::class) ; } |
- Create a form object
Once you have created your form class, you can create a form object by calling the createForm() method on the FormFactory service:
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use SymfonyComponentFormFormFactoryInterface; class MyController { public function createForm(FormFactoryInterface $factory) { $form = $factory->create(MyFormType::class); // Render the form return $this->render('my_form.html.twig', [ 'form' => $form->createView(), ]); } } |
- Render the form
Finally, you'll need to render the form in a template. This can be done using the form_start(), form_widget(), and form_end() Twig functions:
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{{ form_start(form) }} {{ form_widget(form) }} <button type="submit">Send</button> {{ form_end(form) }} |
For more information, you can refer to the Symfony documentation on forms: https://symfony.com/doc/current/forms.html