If I put quotes around the string it works:
if(!defined('_FOO_INC')):
> file ee:
> <?
> if(!defined(_FOO_INC)):
> define('_FOO_INC',1);
> function foo() {
> echo "Hello World\n";
> }
> endif;
> ?>
>
> file ee1:
> <?
> include 'ee';
> include 'ee';
> foo();
> ?>
>
> 10:11am rasmus:~> php ee1
> X-Powered-By: PHP/4.0.8-dev
> Content-type: text/html
>
> <br />
> <b>Fatal error</b>: Cannot redeclare foo() (previously declared in
> /usr/local/home/rasmus/ee:5) in <b>/usr/local/home/rasmus/ee</b> on line
> <b>4</b><br />
> /usr/local/home/rasmus/ee(4) : Fatal error - Cannot redeclare foo()
> (previously declared in /usr/local/home/rasmus/ee:5)
>
>
>
> On Fri, 19 Oct 2001, Zeev Suraski wrote:
>
> > Nope, Edin was right. It's valid in both senses.
> >
> > Zeev
> >
> > At 11:50 19-10-01, Rasmus Lerdorf wrote:
> > >It is valid in the sense that the code would not be executed the second
> > >time, but it isn't valid for preventing multiple function definitions
> > >inside that block. ie. no conditional function definitions.
> > >
> > >-Rasmus
> > >
> > >On Fri, 19 Oct 2001, Edin Kadribasic wrote:
> > >
> > > > > Since you can no longer do:
> > > > >
> > > > > if(!defined(_FOO_INC)):
> > > > > define('_FOO_INC',1);
> > > > >
> > > > > ...
> > > > >
> > > > > endif;
> > > > >
> > > > > to protect a file from multiple inclusion within the file itself,
some
> > > >
> > > > This is still a valid construct. I could find nothing in the
discussion
> > > that
> > > > would indicate otherwise. The only thing that does not work now, and
it did
> > > > before was:
> > > >
> > > > if(!defined(_FOO_INC)):
> > > > define('_FOO_INC',1);
> > > > return;
> > > > endif;
> > > > ...
> > > > ...
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >--
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> >
>
>
>
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