title: why some php files do not end with the closing bracket "?>"?
body: <p>I have been working with Wordpress and other CMS and I have noticed that some of the php files do not have a closing <code>?&gt;</code>.</p>
  
  <p>When I write my own files, I have to include the <code>?&gt;</code>, otherwise the software crashes. I'm wondering how they make it work, or if there are specific sections of a theme that accept this type of php files. Maybe the closing bracket <code>?&gt;</code> is embedded in a different file that I haven't seen. </p>
  
  <p>Does anyone has an explanation for this? </p>
  
  <p>If I decide to put the <code>?&gt;</code> on these files, will the system crash? or I can safely write them with the closing bracket?</p>