Putting two variables next to each other
<p>I inherited some code and am trying to make sense of this. The only time I have seen syntax like this (putting something in parentheses next to a variable) is in type casting. I can't see any instance of $var2 yet (probably in a script calling the function somewhere). What could this be?</p>

<p>Here is what I see in the code:</p>

<pre><code>$var1 = $arrayName['element']($var2);
</code></pre>
