title: CodeIgniter - Editing Output Buffer before sent to browser?
body: <p>I'm researching the PHP framework <a href="http://codeigniter.com/">CodeIgniter</a>.  I need some help regarding editing the output before it's flushed to the user.</p>
  
  <p>Usually in PHP, you can just use <code>ob_start();</code> and then <code>ob_get_clean();</code> to retrieve the contents.</p>
  
  <p>While reading the CodeIgniter documentation, though, they say all output is already buffered.</p>
  
  <p>Has anybody experience with unintentionally starting a second <code>ob_start()</code> ?  Alternatively, can anyone talk about the CodeIgniter output buffering so I may edit it?</p>