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To: Sanford Whiteman <figureonecpr@gmail.com>, 
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Subject: Re: [PHP-DEV] [RFC] Change checkdnsrr() $type argument behavior
From: mike@php.net (Michael Wallner)

On 2014-09-23 06:00, Sanford Whiteman wrote:
>> What would happen is it'd throw an E_DEPRECATED for at least the remainder
>> of 5.x, then throw the usual E_WARNING for a missing argument starting in
>> 7.x with no default.
> 
> Sounds OK to me now that I've noticed this:
> 
>     https://bugs.php.net/bug.php?id=68081
> 
> Pretty sure that's a sane report, and it's enough to make me say
> checkdnsrr() doesn't work now at all.


Given that this function is over 16 years old [1] and guessing that it
was used as a simple kind of email domain verification, I think
checkdnsrr() works as expected [2], [3].

[1] http://marc.info/?l=php-internals&m=90222489331812&w=2
[2] http://tools.ietf.org/html/rfc2821#section-5
[3] http://tools.ietf.org/html/rfc5321#section-5.1

-- 
Regards,
Mike