Re: How can an elephant count for nothing?

Clancy wrote: > While PHP has a lot of nice features, it also has some traps which I > am forever falling into. One which I find particularly hard to > understand is how mixed mode comparisons work. For instance > > $string = 'elephant'; > If($string == 0) returns true; > If($string != 0) returns false; > If($string === 0) returns false; > > I know that in this case I should use 'If($string == '')', but I still > manage to forget. Can anyone explain clearly why comparing a string > with zero gives this apparently anomalous result? I'm not certain, but I suspect it's because the interpreter attempts to convert "elephant" to an integer first. /Per -- Per Jessen, Zürich (-0.6°C)