On Wednesday, February 6, 2002, at 03:28 PM, CC Zona wrote:
> PHP's loose typing means that !$somevar evalutes as true if the > variable is > null, if it has an (integer, float, or string) value of zero, if it's an > empty string, or if it is set to boolean false. Or if the variable/index > does not exist. > > Both methods have their place (though for tests of the latter, I prefer > empty()). The important part is understanding the implications of a > method > when you use it, so that your code isn't wrongly relying on !$somevar to > mean the variable isn't set; it may well have been set, to a meaningful > value which just happens to evaluate to false. > I guess the best thing to do is to test it each way when I'm testing for variables and make sure that the method I end up going with works correctly for "true" and "false" values, whatever they may end up being. No BFD, I was just wondering if there was a definite method for doing these tests. Thanks to all who've responded on this thread. Erik ---- Erik Price Web Developer Temp Media Lab, H.H. Brown [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
