How should one check if a zval is "undefined" ?

From:	Aaron Lewis	Date:	Wed, 07 May 2014 02:45:27 +0000
Subject:	How should one check if a zval is "undefined" ?
Groups:	php.internals
Request:	Send a blank email to internals+get-73990@lists.php.net to get a copy of this message

Hi,

I'm trying to check if a zval is undefined,

But Z_STRLEN_P(return_value) == 0 seems incorrect, 'case the strlen
part sometimes returns a negative value

So, what's the right way to do it? Even regardless of the zval type

-- 
Best Regards,
Aaron Lewis - PGP: 0x13714D33 - http://pgp.mit.edu/
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Thread (2 messages)

• Aaron LewisWed, 07 May 2014 02:45:27 +0000
  • Tjerk MeestersWed, 07 May 2014 05:58:14 +0000