title: ini_set for connected php files advices
body: <p>In a content management system, a page load usually involves many php files. I'd like to ask to increase the <code>memory_limit</code> or <code>max_execution_time</code>, should i put ini_set on the top of every involving php files, or the first loaded php file is enough?</p>
  
  <p>Thank you!</p>