On Wed, 2004-01-21 at 20:19, Chris W wrote:
> Robert Cummings wrote:
>
> >Hmmm, I don't think other programmer's sloppy coding practices are a
> >good argument for having to declare variables or against loose typing.
> >There are crappy coders in whatever language you use. The good coders
> >will do the right thing. If you are concerned about scripts on
> >hotscripts.com where the coder doesn't seem to understand the principles
> >of security or fully understand what is happening with their variables,
> >then perhaps you should be writing the code yourself or hiring someone
> >who does understand the language more completely. Caveat Emptor. Part of
> >PHPs simplicity and attractiveness is that you DON'T need to declare
> >variables, and you DON'T need to do manual casting. Start adding these
> >and you may as well be writing Java or C/C++.
> >
> >
> I am going to have to strongly disagree with some of what Rob said. I
Definately not the first *grin*.
> agree that sloppy coding of idiots should have not impact on the design
> of a programming language. However I see no disadvantages to forcing
> you to declaring variables. Even if you are going to have loose type
> conversions you can still declare variables and give their intended
> type. If this is done the loose type conversion can be done more
> intelligently. It also goes a long way to documenting your code. A
> section at the top of a source file with a declaration of all variables
> and functions used makes provides an easy and consistent way to document
> your code. Well named functions and variables names alone, when they
> are all spelled out in a logical order at the top of a source file does
> a lot to document the code. On top of that there is a HUGE advantage to
> even the best programmer. Let me give you a recent example.
>
> lots of code;
>
> $Key = "xyz";
>
> lots more code here.
>
> if($key == "xyz"){
> do this stuff;
> }
> lots more code here;
>
> I am assuming you found the error pretty quick, but when looking at the
I code with ALL errors enabled. This would fire an error as soon as the
code ran. So I have no problem with non declared variables. Generally
speaking though, I do declare variables at the top of my functions too,
but I picked that up from writing C code.
Cheers,
Rob.
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