Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:5102
Return-Path: <andi@zend.com>
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Delivered-To: mailing list internals@lists.php.net
Received: (qmail 61848 invoked by uid 1010); 30 Oct 2003 10:38:15 -0000
Delivered-To: ezmlm-scan-internals@lists.php.net
Delivered-To: ezmlm-internals@lists.php.net
Received: (qmail 61824 invoked from network); 30 Oct 2003 10:38:14 -0000
Received: from unknown (HELO mail.zend.com) (192.117.235.230)
  by pb1.pair.com with SMTP; 30 Oct 2003 10:38:14 -0000
Received: (qmail 16274 invoked from network); 30 Oct 2003 10:38:00 -0000
Received: from guardian.zend.office (HELO andi-laptop.zend.com) (10.1.1.4)
  by int.zend.com with SMTP; 30 Oct 2003 10:38:00 -0000
Message-ID: <5.1.0.14.2.20031030123410.02b606a0@127.0.0.1>
X-Sender: andi@127.0.0.1
X-Mailer: QUALCOMM Windows Eudora Version 5.1
Date: Thu, 30 Oct 2003 12:35:23 +0200
To: Filip de Waard <dewaard@netcollective.nl>,internals@lists.php.net
In-Reply-To: <1067509592.3129.20.camel@gt0306.uvt.nl>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; format=flowed
Subject: Re: [PHP-DEV] superglobals inside of function declarations
From: andi@zend.com (Andi Gutmans)
References: <1067509592.3129.20.camel@gt0306.uvt.nl>

Hi,

In general you are only allowed to use scalars as default values. This 
won't change.

I suggest you do something like:

function refresh($location = NULL) {
    if ($location === NULL) {
        $location = $_SERVER['PHP_SELF'];
   }
}

At 11:26 AM 10/30/2003 +0100, Filip de Waard wrote:
>Hello,
>
>I've been using PHP for quite a while now and i'm getting interested
>it's internal beheaviour. I'm wondering why it isn't possible to use a
>global variable inside of a function declaration. For example:
>
><?
>function refresh($location = $_SERVER['PHP_SELF'])
>{
>         //refresh and load $location
>}
>//refreshes the page
>refresh();
>//redirects to another page
>refresh("http://www.php.net/");
>?>
>
>Of course there are ways to circumvent this problem that have the same
>result, but require more code. IMHO allowing globals inside of function
>declarions will create interesting possibilities that could result in
>more efficient code.
>
>Regards,
>
>Filip de Waard
>Net Collective
>
>www.netcollective.nl
>
>--
>PHP Internals - PHP Runtime Development Mailing List
>To unsubscribe, visit: http://www.php.net/unsub.php