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Date: Thu, 21 Apr 2011 10:49:12 -0400
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Subject: RE: [PHP-DEV] Function proposal: varset
From: jbondc@openmv.com ("Jonathan Bond-Caron")

On Wed Apr 20 04:41 PM, D. Dante Lorenso wrote:
>=20
> My proposal was called "filled" since it was the opposite of "empty"
> which already existed.  I extended the function to return the first=20
> non-empty value or null if all values evaluated as empty.
>=20
> You could use the function like this:
>=20
>    $x =3D filled($_GET['x'], $obj->something, $default, 'default');
>=20
> Like I said, though, I don't think this can be done in the language=20
> because I think they ran out of OPCODES and would have to tear apart=20
> the whole PHP engine to support such a feature.
>=20

That's not the reason, there's 127 / 256 opcodes.

So far "filled", "varset", "coallesce", "ifsetor" or any operator would =
likely have to manipulate opcodes.

http://php.net/~helly/ze2-ifsetor-20040901.diff.txt

From what I understand, zeev and andi are strongly opposed to adding a =
new opcode. I'm sure they have their reasons.

Maybe there's another approach where ~ E_NONE could be passed to =
zend_error

ZEND_API void zend_error(int type, const char *format, ...) /* {{{ */
{
   if(type & E_NONE)
      return;
}

Then modify to zend_vm_gen.php to pass E_NONE if within 'ifsetor'.

Either way, there's a solution for it, I think the debate is over how =
it's implemented.

-- Worth reading

https://wiki.php.net/rfc/ifsetor#rejected_features

-- Why?

I think it simply boils down to this:
- PHP *developers* want a function for it.

Derick
=20