Description:
------------
The symbolic constants FALSE and TRUE are treated differently, but should be treated the same.  

The principle of symbolic constants is that, during translation, the value for which they stand is substituted everywhere they appear.  This principle is universally taught in texts, and I cannot think of a single language, from various assembly languages on up, where it is not true.

The PHP documentation has nothing to say that would lead anyone to think that PHP is intended to work differently.  What would be the advantage in making it work so differently?

Reproduce code:
---------------
echo false ;
echo (false) ;
echo false+false ;
echo (false+false) ;
echo intval(false) ;
echo '"'.false.'"' ;

echo true ;
echo (true) ;
echo true+true ;
echo (true+true) ;
echo intval(true) ;
echo '"'.true.'"' ;



Expected result:
----------------
00000"0"11221"1"

Actual result:
--------------
000""11221"1"