Re: [PHP-LANG] Re: Legal variable names

At 18:24 22-11-00, Sascha Schumann wrote:
>On Wed, 22 Nov 2000, André Langhorst wrote:
>
> > > That's what I was asking. I just am rather careful there because somebody
> > > wrote that code so he should have meant something by it - maybe there are
> > > reasons I'm not aware of.
> >
> > well as discussed before this code is an relict from register_globals=on
> >
> > >     With regard to php-lang, are there any opinions on whether
> > >     a construct like this should be legal?
> > >
> > >         '${' expression '}'
> > >
> > >     where expression evaluates to an arbitrary string, not
> > >     necessarily to an identifier (which is basically
> > >     [a-z][a-z0-9]*).
> >
> > why not? you can even use ä,ü,ö without using ${' äöü '}, should these
> > be legal - let the user decide how to write his code
>
>     Do I understand you correctly that your explanation is
>     "because we can"?

Sascha,

Again, *YES*, unless it's a blunt bug, then 'because we can' is exactly the 
right reasoning.  Why is it legal to write a for loop in PHP?  I'll tell 
you why, because if you do it, it'll work.  That's no different.

>    Regardless, the above construct seems to be valid since PHP
>     3, so it will be part of the specification.

Do you realize that your explanation is identical to that of Andre? :)

Zeev


--
Zeev Suraski <[email protected]>
CTO, Zend Technologies Ltd. http://www.zend.com/