title: How do I rewrite and use only one version of the url?
body: <p>I have the following rewriterule:</p>
  
  <pre><code>RewriteRule ^first-test-page/?$ testing.php?idPage=1 [NC,L]
  </code></pre>
  
  <p>How do I redirect the user to domain.com/first-test-page/ if he goes to domain.com/testing.php?idPage=1 ?</p>
  
  <p>Thank you!</p>