title: Still having error in “The URI you submitted has disallowed characters.” in CodeIgniter
body: <p>I've searched all posts and I find this same error they encountered. Most comments and feedback was successfully fixed, but when I do mine, it doesn't work,</p>
  
  <p>I've already changed the <code>system/application/config/config.php</code> file from:</p>
  
  <pre><code>$config['permitted_uri_chars'] = 'a-z 0-9~%.:_\-';
  </code></pre>
  
  <p>to</p>
  
  <pre><code>$config['permitted_uri_chars'] = 'a-z 0-9~%\.\:_\-\=';
  </code></pre>
  
  <p>and the URI you submitted has disallowed characters.</p>
  
  <p>when I set the value of <code>$config['enable_query_strings']</code> to <code>True</code>.</p>
  
  <p>I have 404 "Page Not Found"</p>
  
  <p>I use Codeigniter3 with PHP 5.6.</p>
  
  <p>Can you help me please?</p>