But that function doesn't need to pass by reference. If you have a
function that has a parameter that is passed by ref, it should always
be a variable that is passed in. You should only be using pass by ref
when the function changes the value and it simply doesn't make sense
to change a "constant".
On Fri, 16 Jul 2004 18:03:08 -0700, Daevid Vincent <[EMAIL PROTECTED]> wrote:
> Yeah, I get what references are. The point is that when it was on the user
> to decide, they could do it. Now that PHP5 makes you put the & in the
> function declaration instead of the passing parameter, you don't know what
> the user is going to send. Therefore it renders the & in the function
> declaration a useless thing.
>
> I could have this function
>
> Function add (&$a, &$b)
> {
> return ($a + $b);
> }
>
> And as a user I could use it like so:
>
> $x = 5;
> $y = 10;
> add($x, $y);
>
> Or I could also use it like this:
>
> add(5,10);
>
> But since the function is now responsible in PHP5 to use the & [since
> passing add(&$x, &$y); is now invalid], it makes my function add basically
> useless.
>
>
>
>
> > -----Original Message-----
> > From: Red Wingate [mailto:[EMAIL PROTECTED]
> > Sent: Friday, July 16, 2004 5:35 PM
> > To: [EMAIL PROTECTED]
> > Subject: [PHP] Re: PHP5 and pass by reference bug.
> >
> > Maybe you recheck the dokumentation on what exactly
> > referenzes are. Do
> > you expect the function to alter the string "something here"
> > and every-
> > time you later print the string within your script you get
> > the altered one?
> >
> > ONLY variables can be passed by referenze !
> >
> > -- red
> >
> > Daevid Vincent wrote:
> > > So, I'm getting all these errors/warnings in PHP5 now
> > saying that I have to
> > > put the & on the function and not in the passing (which
> > sorta makes sense
> > > and puts the burden on the function rather than the user,
> > which I like too).
> > > So I spend the time to go and fix several thousand lines of code.
> > >
> > > Then I start to see these other errors...
> > >
> > > Maybe I'm missing something, but this seems like a glaring
> > bug in passing by
> > > reference that nobody caught...
> > >
> > > say you have
> > >
> > > function foo(&$bar)
> > > {
> > > }
> > >
> > > well that works great as long as you use it like
> > >
> > > foo($x);
> > >
> > > but if you try
> > >
> > > foo("something here");
> > > Or
> > > foo( array('a','b','c') );
> > >
> > > it shits the bed. :-(
> >
> > --
> > PHP General Mailing List (http://www.php.net/)
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> >
>
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>
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