title: PHP Memory Cleared when using exit()?
body: <p>My web app makes a lot of POST and GET calls via AJAX to my PHP scripts. I've noticed my server's memory usage is reaching a pretty low level after calling my scripts when exporting to PDF/excel, searching, inserting/updating/deleting, etc.</p>
  
  <p>None of my PHP scripts end with <code>exit()</code> or <code>die()</code>. Could this be causing my memory issue? If I were to add <code>exit()</code> or <code>die()</code> at the end of each script, would this clear the memory that was just used by that given script?</p>