note 74292 deleted from tutorial.useful by nlopess

Note Submitter: andrew at acooke dot org ---- As an experienced (I think!) programmer, I am surprised to see "if (... != FALSE)" in an example. My initial reaction is that this is simply bad code (if you assume that the left hand side is boolean then it must be either true or false, and the "!= FALSE" is redundant). My second reaction was to worry about exactly what true and false were defined as (my guess, since the strpos looks C-like, is that FALSE is a synonym for 0 and there may be "issues" with whether true is any non-zero value, or has some special value). Either way, this isn't the kind of thing I want to be worrying about in the first couple of pages of an introductory manual. I'd suggest fixing the code or explaining it in more detail.