What do these lines of code do?
<p>I am working on modifying a plugin for wordpress to better suit my needs, and I need to know exactly what this code does:</p>

<pre><code>if ( $single_download['uniqueid'] == null )
    $link[] = array( "url" =&gt; site_url( "?downloadid=" . $single_download['id'] ), "name" =&gt; $file_name );
else
    $link[] = array( "url" =&gt; site_url( "?downloadid=" . $single_download['uniqueid'] ), "name" =&gt; $file_name );
</code></pre>

<p>If you would need more than just this code here, could you please just explain what it is doing as far as you can tell by the scope of the code I have provided. I am assuming it is combining the different items but I am nut sure.</p>

<p>Edit: Sorry I should have clarified I realize what the if statement is doing, I need to know what the other line of code does.</p>
