PDF¶

Referencia:http://www.bsourcecode.com/yiiframework2/create-pdf-files-using-mpdf-in-yiiframework-2-0/

 "require": {
      "php": ">=5.4.0",
      "yiisoft/yii2": "*",
      "yiisoft/yii2-bootstrap": "*",
      "yiisoft/yii2-swiftmailer": "*",
"mpdf/mpdf":"*" 
  },

composer update

o bien

composer.phar self-update

php composer.phar require mpdf/mpdf "dev-master" 

Agregar en ‘vendor/composer/autoload_namespaces.php’ la linea en el arreglo

'mPDF' => array($vendorDir . '/mpdf/mpdf'),

En el controlador de la clase que querramos CtacteController.php

use mPDF;

.....
class CtacteController extends Controller
....

 public function actionPdf()
        {
    $mpdf=new mPDF();
    $mpdf->WriteHTML("ejemplo");
        $mpdf->Output();
        exit;
}

Otras referencias

http://www.programacion.com.py/web/php/reportes-en-yii-exportar-a-pdf

http://www.yiiframework.com/extension/yii2-mpdf/

http://latcoding.com/2015/09/01/make-a-report-pdf-in-yii2/

http://www.programacion.com.py/web/php/reportes-en-yii-exportar-a-pdf

http://www.bsourcecode.com/yiiframework2/create-pdf-files-using-mpdf-in-yiiframework-2-0/#create-pdf-using-mpdf