title: Laravel get Route parameters outside controller
body: <p>I have defined a dummy route like this:</p>
  
  <pre><code>Route::get('sth/{v1}/{v2}' , [
      'uses'=&gt;'SthController@sth',
  ]) ;
  </code></pre>
  
  <p>how can I get the value of <strong>v1</strong> and <strong>v2</strong>, outside controllers?</p>