Add getIsPjax method to Request

framework/web/Request.php

@@ -292,6 +292,15 @@ class Request extends \yii\base\Request
 	}
 
 	/**
+	 * Returns wheter this is a PJAX request
+	 * @return boolean wether this is a PJAX request
+	 */
+	public function getIsPjax ()
+	{
+		return $this->getIsAjax() && isset($_SERVER['HTTP_X_PJAX']) && $_SERVER['HTTP_X_PJAX']==true;
+	}
+	
+	/**
 	 * Returns whether this is an Adobe Flash or Flex request.
 	 * @return boolean whether this is an Adobe Flash or Adobe Flex request.
 	 */