exit, exit(), exit(0), die(), die(0) - How to exit script
<p>I believe that all of these (and even <code>die()</code> or <code>die(0)</code>) are identical.  If they are not identical, which is preferred for exiting a script successfully?  If they are identical, is there any preferred standard to indicate successful script completion?  I tend to use <code>exit;</code>.</p>

<p>EDIT: All of the answers have "<code>die()</code> and <code>exit()</code> are identical" even though I say that in my question.  I updated to the title to hopefully make it clearer that this is NOT my question.  I want to clearly indicate success from a command line script.</p>
