In php, how to set a define-d value in a const?
<p>Lets say in the very first script, which always executes first, I defined something:</p>

<pre><code>define ('ROOTDIR', dirname(__FILE__));
define ('ROOTDIR_ASSETS', ROOTDIR.'/assets');
</code></pre>

<p>now a class:</p>

<pre><code>class PictureGallery
{
    const PATH = ROOTDIR.'/imgs';
</code></pre>

<p>php say: syntax error, unexpected '.' expecting ' ' or ';'.
How to work it around?</p>
