title: Codeigniter $this->input->post() empty while $_POST is working correctly
body: <p>On a codeigniter installation, I am trying to use the inbuilt <code>$this-&gt;input-&gt;post('some_data')</code> function, however <code>$this-&gt;input-&gt;post()</code> is an empty array.</p>
  
  <p>A <code>print_r($_POST)</code> gives all the variables fully and correctly?</p>
  
  <p>According to the codeigniter docs, The input class "is initialized automatically by the system so there is no need to do it manually", leaving me wondering what else I'm meant to do.</p>
  
  <p>Any thoughts on how I should try to get this working?</p>
  
  <p>Thanks!</p>