title: What's the max value of max_input_time?
body: <p>Seems that <code>max_execution_time</code> is <code>0</code> but <code>memory_limit</code> is <code>-1</code>.</p>
  
  <p>For <code>max_input_time</code> is it <code>0</code> or <code>-1</code> or both?</p>