How to create static class constant variable from another constant variable?
<p>I have a constant called PREFIX defined in constants.php. In class Foo, I would like to create a static class constant with PREFIX as the prefix. But I get a syntax error on that const definition line.</p>

<pre><code>require_once 'constants.php';

class Foo {
    const FOO_CONST = PREFIX . 'bar';

    public function __construct() {
    }
}
</code></pre>
