title: Close and/or kill mysqli connection at the end of the php script?
body: <p>Do I need to explicitly kill and/or close a mysqli connection at the end of a script.  At the moment, I do neither, and it works, but I don't have much load.</p>
  
  <p>I've heard that there is connection pooling, and mysqli connections are re-used...  do I need to close the connection then at all?</p>