Re: BC problem
| From: | Brian Moon | Date: | Wed, 28 Nov 2001 19:54:16 +0000 |
| Subject: | Re: BC problem | ||
| References: | 1 | Groups: | php.dev |
| Request: | Send a blank email to php-dev+get-71955@lists.php.net to get a copy of this message | ||
This has already been discussed at great length in another thread. I
believe it was decided to put it all back like it was for now and decide on
a better solution later.
Brian.
----- Original Message -----
From: "Markus Fischer" <mfischer@guru.josefine.at>
To: <php-dev@lists.php.net>
Sent: Wednesday, November 28, 2001 11:05 AM
Subject: [PHP-DEV] BC problem
> A small example which shows that BC seems to be broken for a
> certain (but not uncommon) case:
>
> cat include_me.php
> <?
> if (!defined('I_AM_INCLUDED')) {
> define('I_AM_INCLUDED', 1);
> } else {
> echo "returning<br>\n";
> return;
> }
>
> function cant_be_redefined() {
> }
> ?>
>
> cat include_it.php
> <?
> echo "1<br>\n";
> include 'include_me.php';
> echo "2<br>\n";
> include 'include_me.php';
> echo "3<br>\n";
> ?>
>
> Now run include_it.php (it doesn't matter if its CGI or
> module):
>
> On PHP 4.0.4pl1 up to 4.0.6 this gives:
> 1<br>
> 2<br>
> returning<br>
> 3<br>
>
> But now I get:
> 1<br>
> 2<br>
> <br />
> Fatal error - Cannot redeclare cant_be_redefined()
> (previously declared in include_me.php:9)
>
> [I shortened the error message to be more readable]
>
>
> If this is 'now the way it is' this should be mentioned
> somewhere very clearly I think. Doesn't seem to be fixable in
> some way? Couldn't find a reference to it e.g. in the NEWS
> file.
>
>
> I know that there should be used include_once() but
> I'm talking about existing code writing that way which
> definitely won't work without modifications.
>
> - Markus
>
> ps: thanks to Jan for verifying this!
>
> --
> Please always Cc to me when replying to me on the lists.
>
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