Description:
------------
The declare construct raises a warning "Cannot convert to ordinal value" if a named constant is used as a parameter. If this is intentional limitation, it should be documented. Otherwise, this is a bug.

Test case at http://3v4l.org/YFZ4D

Test script:
---------------
<?php
define("CONFIG_TICKS", 1);
declare(ticks=CONFIG_TICKS);
$x = "test";


Expected result:
----------------
The declared value of 'ticks' should be 1 and the script should emit no output.

Actual result:
--------------
Warning: Cannot convert to ordinal value in /in/YFZ4D on line 3