title: PHP str_replace at the URL
body: <p>I want to remove "&amp;start=2" from a given URL.
  This is what I tried:</p>
  
  <pre><code>$uri = "http://test.com/test/?q=Marketing&amp;start=2";
  
  $newuri = str_replace("&amp;start=","",$url);
  
  echo $newuri;
  </code></pre>