title: PHP Profiler with method execution count, times etc. without extensions
body: <p>Is there any class or library that I can use for profiling, finding bottlenecks, seeing unnecessary execution times etc in my local php environment using beside the CI's default profiler? </p>
  
  <p>I'm going to use it remotely and my host doesn't have any debug extensions installed, and I don't want to ask them to install, and if there's any PHP solution of it, it'll be nice.</p>
  
  <p>If possible, without installing an extension or altering php.ini file please.</p>
  
  <p>(I edited the title because it made the question look Codeigniter specific, but it's not.)</p>