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Date: Wed, 18 Feb 2004 15:44:10 +0100
Reply-To:  hartmut@php-groupies.de
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To: Pierre-Alain Joye <paj@pearfr.org>
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Subject: Re: [PHP-DEV] HEAD, include(_once), bug in variable declaration
From: hartmut@php.net (Hartmut Holzgraefe)

Pierre-Alain Joye wrote:
> Hello,
> 
> Having the scripts pasted below:
> 
> include_once fails to declare the variable 'foo'. Replace include_once
> by include and it works. I got the same behavior using require and
> require_once.
> 
> Am I wrong to see that as a bug?
> 
> inc.php
> --------
> <?php
> $foo = "var from include";
> ?>
> 
> testinc.php
> -----------
> <?php
> 
> function getFoo()
> {
>         static $calls=0;
>         include_once 'inc.php';
>         $calls++;
>         echo "calls:$calls\n";
>         return $foo;
> }
> echo getFoo() . "\n";
> echo getFoo() . "\n";
> ?>
> 

it works for the first call to getFoo(),
on any following call include_once
will ignore "inc.php" as it was already
included before, and as $foo is a local
variable to getFoo() it won't exist in
any but the first call

remember that in PHP include is evaluated
at runtime, not at compile time ...

-- 
Hartmut Holzgraefe  <hartmut@php.net>