On Wed, 2009-10-28 at 16:29 +0000, Nick Cooper wrote:
> 2009/10/28 Jim Lucas:
> > Nick Cooper wrote:
> >> Hi,
> >>
> >> I was just wondering what the difference/advantage of these two
> >> methods of writing a string are:
> >>
> >> 1) $string = "foo{$bar}";
> >>
> >> 2) $string = 'foo'.$bar;
> >>
> >> I always use method 2 but have been noticing method 1 more and more in
> >> source code. Is this just user preference?
> >>
> >> I would use a generic search engine but not sure what the first method
> >> is called so don't know where to begin my search.
> >>
> >> Thanks for any help.
> >>
> >> Nick
> >>
> >
> > I think it is a matter of personal preference. I prefer method 1 myself.
> >
> >
> >
>
> Thank you for the quick replies. I thought method 2 must be faster
> because it doesn't have to search for variables in the string.
>
> So what is the advantages then of method 1 over 3, do the curly braces
> mean anything?
>
> 1) $string = "foo{$bar}";
>
> 2) $string = 'foo'.$bar;
>
> 3) $string = "foo$bar";
>
> I must admit reading method 1 is easier, but writing method 2 is
> quicker, is that the only purpose the curly braces serve?
>
This was on the list a few days back. Basically, the braces are there to
force PHP to recognise the full variable name, so that you could type:
$string = "{$foo}bar";
$string = "foo{$bar[0][1]}";
$string = "{$foo->bar}";
Thanks,
Ash
http://www.ashleysheridan.co.uk
