Okay basically this isn't a bug, more of an annoyance though I thought it should be pointed out.

As you all know variable scope in functions determines that $var1 outside a function is not the same a $var1 inside the function, so you must pass $var1 to the function.  Basic stuff.

Anyhow, there are many variables built into PHP such as $PHP_SELF that still comply to the variable scope rules, which I think is *very* annoying.  I do not think it should be necessary to pass something like $PHP_SELF to your function if you need to call it within.  I dunno, maybe I'm just whining, but there you have it.