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Subject: Re: [PHP-DEV] suggestion about ternary operator
From: dante@lorenso.com ("D. Dante Lorenso")

Lukas Kahwe Smith wrote:
> On 21.11.2009, at 22:29, Dante Lorenso wrote:
> 
>> I would love to restate my recommendation for the function "filled".
>> Which is the opposite of "empty".  Filled would accept a variable
>> number of arguments and return the first where empty evaluates as
>> false.
>>
>> Like empty, filled would not throw notices for undefined variables.
>> This is not the same as the ifsetor debate because filled is opposite
>> empty and cares not about isset.
> 
> 
> did you even read the RFC?

Yes I did, and all I see is this in the References section:

   "Suggestion to leave an empty() variant out of the picture since
    this  feature can be implemented in userland, though this of
    course not provide the full functionality of empty() which
    does not trigger notices for missing variables"

I didn't see my proposal listed in it anywhere.  See this recommendation 
  from 3 1/2 years ago:

   - May 03, 2006
     http://www.mail-archive.com/internals@lists.php.net/msg21617.html

Can someone please add the 'filled' proposal to the RFC?  I find 
'filled' way more useful than 'ifsetor' because in everyday code, I am 
constantly wanting to assign default values to variables that don't have 
values for a variety of reasons.  The assignment of a default value 
happens before input filtering.

   $email = filled(
	$_REQUEST['email'],
	$CONFIG->email_default,
	$class_email,
	'default@domain'
   );

Give me the first non-empty value and don't throw NOTICE warnings about 
it.  Otherwise, I need all this:

    $email = !empty($_REQUEST['email']) ? $_REQUEST['email'] : (
	!empty($CONFIG->email_default) ? $CONFIG->email_default : (
	!empty($class_email) ? $class_email : 'default@domain'
    ));

Yuck.

-- Dante

----------
D. Dante Lorenso
dante@lorenso.com
972-333-4139