Souke/backend/controllers/CommuniquerController.php

<?php

namespace backend\controllers;

/**
 * UserController implements the CRUD actions for User model.
 */
class CommuniquerController extends BackendController {

    public function behaviors() {
        return [
            'verbs' => [
                'class' => VerbFilter::className(),
                'actions' => [
                    'delete' => ['post'],
                ],
            ],
            'access' => [
                'class' => AccessControl::className(),
                'rules' => [
                    [
                        'allow' => true,
                        'roles' => ['@'],
                        'matchCallback' => function ($rule, $action) {
                            return Yii::$app->user->identity->status == USER::STATUS_ADMIN || Yii::$app->user->identity->status == USER::STATUS_BOULANGER;
                        }
                    ]
                ],
            ],
        ];
    }

    public function actionIndex() {
        $etablissement = Etablissement::findOne(['id' => Yii::$app->user->identity->id_etablissement]);

        return $this->render('index', [
                    'etablissement' => $etablissement,
                ]);
    }

    public function actionModeemploi() {

        $etablissement = Etablissement::findOne(['id' => Yii::$app->user->identity->id_etablissement]);

        // get your HTML raw content without any layouts or scripts
        $content = $this->renderPartial('mode_emploi_multi', [
            'pdf' => true,
            'etablissement' => $etablissement
        ]);

        $pdf = new Pdf([
            // set to use core fonts only
            'mode' => Pdf::MODE_UTF8,
            // A4 paper format
            'format' => Pdf::FORMAT_A4,
            // portrait orientation
            'orientation' => Pdf::ORIENT_PORTRAIT,
            // stream to browser inline
            'destination' => Pdf::DEST_BROWSER,
            // your html content input
            'content' => $content,
            'marginRight' => 0,
            'marginLeft' => 0,
            'marginTop' => 0,
            'marginBottom' => 0,
            // format content from your own css file if needed or use the
            // enhanced bootstrap css built by Krajee for mPDF formatting 
            //'cssFile' => '@vendor/kartik-v/yii2-mpdf/assets/kv-mpdf-bootstrap.min.css',
            'cssFile' => '@app/web/css/screen.css',
                // any css to be embedded if required
                //'cssInline' => '.kv-heading-1{font-size:18px}', 
                // set mPDF properties on the fly
                //'options' => ['title' => 'Krajee Report Title'],
                // call mPDF methods on the fly

                /* 'methods' => [ 
                  'SetHeader'=>['Commandes du '.$date_str],
                  'SetFooter'=>['{PAGENO}'],
                  ] */
        ]);

        // return the pdf output as per the destination setting
        return $pdf->render();
    }

}