In a new post on his blog today, Michael Kimsal looks at an abnormality that he's disocvered with constants in PHP.

Chalk this up as par for the course in the world of PHP, but it doesn't behave as documented. I noticed today that @ work someone is creating database connections, then define()ing the result into a constant. I presumed this was failing silently and because we were generally connecting to only one database (or so I thought initially) that it was simply using the last open connection and still working.

This does *not* throw an error, but does in fact work. Even going back to PHP 4.3.2 (earliest I've checked). This flies in the face of my understanding of constants for years - well, since 1998 (perhaps earlier) or so.

the issue - that a resource can be assigned to a constant - seems to contradict what's listed in the manual, and he asks later if there are others out there that have seen this same issue...