Souke/frontend/views/site/signup.php

<?php
use yii\helpers\Html;
use yii\bootstrap\ActiveForm;

/* @var $this yii\web\View */
/* @var $form yii\bootstrap\ActiveForm */
/* @var $model \frontend\models\SignupForm */

$this->title = 'Inscription';
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="site-signup">
    <h1><?= Html::encode($this->title) ?></h1>

    <p>Veuillez remplir les champs suivants afin de créer votre compte.<br />
    Tous les champs sont obligatoires.</p>

    <div class="row">
        <div class="col-lg-5">
            <?php $form = ActiveForm::begin(['id' => 'form-signup','enableClientValidation'=> false]); ?>
                <?= $form->field($model, 'email') ?>
                <?= $form->field($model, 'password')->passwordInput() ?>
                <?= $form->field($model, 'nom') ?>
                <?= $form->field($model, 'prenom') ?>
                <?= $form->field($model, 'telephone') ?>
                <?= $form->field($model, 'is_boulanger')->checkbox() ?>
                <div id="champs-boulanger">
                    <?= $form->field($model, 'nom_magasin') ?>
                    <?= $form->field($model, 'siret') ?>
                </div>
                <div class="form-group">
                    <?= Html::submitButton("S'inscrire", ['class' => 'btn btn-primary', 'name' => 'signup-button']) ?>
                </div>
            <?php ActiveForm::end(); ?>
        </div>
    </div>
</div>