return in PHP code
<p>when we use <code>return</code> in PHP on global scope, after <code>return</code>, does execution just stop?
or processing will go on?</p>

<pre><code>&lt;?php

if(defined("A")) return;
define("A", true);

echo "Hello";

if(defined("A")) return;
define("A", true);

echo "Hello";
?&gt;
</code></pre>
