Installation

phil/contact-form-bundle

Requirement	Version	Why
PHP	8.5 or later	The floor the bundle declares
`ext-filter`	any	The configuration's addresses checked
`phil/spam-protection-bundle`	^0.1@dev	The form's protection
`symfony/form`, `symfony/options-resolver`, `symfony/validator`	^8.2	The form and its checks
`symfony/mailer`, `symfony/mime`, `symfony/twig-bridge`, `twig/twig`	^8.2, ^3.21	The email and the page
`symfony/http-foundation`, `symfony/dependency-injection`, `symfony/config`	^8.2	The controller and the bundle
`psr/log`	^3.0	A message the transport refuses is logged

composer require phil/contact-form-bundle

// config/bundles.php
return [
    // ...
    Phil\SpamProtectionBundle\PhilSpamProtectionBundle::class => ['all' => true],
    Phil\ContactFormBundle\PhilContactFormBundle::class => ['all' => true],
];

Without PhilSpamProtectionBundle, the container refuses to build. The route is imported, under the path the application chooses:

# config/routes/phil_contact_form.yaml
phil_contact_form:
    resource: '@PhilContactFormBundle/config/routes.php'
    prefix: /contact

The proof of work of the protection runs in the browser through its Stimulus controller: see phil/spam-protection-bundle's installation.