title: On using ini_set('max_execution_time', 0);
body: <p>How do I use <code>ini_set('max_execution_time', 0);</code>? </p>
  
  <p><strong>Question 1:</strong> Do I place it at the top of the .PHP file or in a function that takes a long time to do something?</p>
  
  <p><strong>Question 2:</strong> Does this setting last forever after being set? Or does it return back to its original 300sec or whatever default value after the function stops running?</p>