Form input in Laravel - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the @csrf directive in Laravel forms?

The @csrf directive adds a hidden token to the form to protect against Cross-Site Request Forgery attacks. It ensures the form submission is secure and comes from your application.

beginner

How do you retrieve form input data in a Laravel controller?

You use the $request->input('field_name') method or simply $request->field_name to get the value of a form input named field_name.

beginner

What HTML element is used to create a text input field in a Laravel Blade form?

You use the <input type="text" name="field_name" /> element. Laravel also offers helpers like Form::text('field_name') if using the Form package.

intermediate

How can you repopulate old input values in a Laravel form after validation fails?

Use the old('field_name') helper inside the value attribute, like <input type="text" name="field_name" value="{{ old('field_name') }}" />. This keeps user input after errors.

intermediate

What method should the form use to send data securely for creating or updating resources in Laravel?

Use the POST method for creating data and PUT or PATCH for updating. In HTML forms, use method="POST" and add @method('PUT') or @method('PATCH') for updates.

Which directive adds a CSRF token to a Laravel form?

A @token

B @method

C @csrf

D @form

The @csrf directive adds a hidden CSRF token input to protect the form from cross-site request forgery.

How do you access the value of a form input named 'email' in a Laravel controller?

A $request->email

B $request->getEmail()

C $request->inputEmail()

D $request->form['email']

You can access input values directly using $request->email or $request->input('email').

What HTML attribute is essential to identify form inputs in Laravel?

A name

B id

C class

D value

The 'name' attribute is used to identify form inputs and retrieve their values in Laravel.

Which helper repopulates old input after validation errors?

A previous()

B back()

C input()

D old()

The old() helper returns the previous input value to keep user data after validation fails.

To update a resource via a form in Laravel, which method should you spoof?

A POST

B PUT

C GET

D DELETE

HTML forms only support GET and POST, so you spoof PUT or PATCH using @method('PUT') for updates.

Explain how to create a secure form in Laravel that keeps user input after validation errors.

Think about security and user experience when submitting forms.

Describe how Laravel handles HTTP methods in forms for creating and updating data.

Remember HTML form limitations and Laravel's method spoofing.