extension can not receive unset values without E_NOTICE or reference creation

On Fri, 26 May 2006 15:45:19 -0500
dante@vocalspace.com ("D. Dante Lorenso") wrote:

All,

Back on the topic of trying to write a 'filled' function in an
extension, I have run into trouble. I have declared a function as
follows:

It is perfectly normal and desired.

The variable is fetched before entering your function. This fetch
operation raises a E_NOTICE, create/initialize the ZVAL and pass it to
your function.

-- Pierre

Hello D.,

you are looking for ZEND_BEGIN_ARG_INFO_EX(), the names of the macro
parameters are self speaking.

best regards
marcus

Friday, May 26, 2006, 10:45:19 PM, you wrote:

All,

Back on the topic of trying to write a 'filled' function in an
extension, I have run into trouble. I have declared a function as follows:

---------- 8< -------------------- 8< ----------
static
ZEND_BEGIN_ARG_INFO(all_args_prefer_ref, ZEND_SEND_PREFER_REF)
ZEND_END_ARG_INFO()

zend_function_entry shorthand_functions[] = {
PHP_FE(filled, all_args_prefer_ref)
{NULL, NULL, NULL} /* Must be the last line in
shorthand_functions[] */
};

PHP_FUNCTION(filled)
{
RETURN_TRUE;
}
---------- 8< -------------------- 8< ----------

Then, in PHP I try the following test code:

---------- 8< -------------------- 8< ----------
<?php
$x = array();
$x["dog"] = "spot";
$x["cat"] = "moriss";
print_r($x);

// testing
print filled("testing", $x["pig"], $y->testing);
print "\n";

print_r($x);
print_r($y);
?>>
---------- 8< -------------------- 8< ----------

Unfortunately, $x now contains a 'pig' key and the non-existent $y has
been transformed into an object:

---------- 8< -------------------- 8< ----------
Array
(

[dog] => spot
[cat] => moriss

)
1
Array
(
[dog] => spot
[cat] => moriss
[pig] =>
)
stdClass Object
(
[testing] =>
)

---------- 8< -------------------- 8< ----------

Is there a way to define the parameters which an extension's function
will accept to be optionally set? The prefer-by-ref I am using is
making the var exist even when I don't want it to.

Dante

Best regards,
Marcus

Back on the topic of trying to write a 'filled' function in an
extension, I have run into trouble. I have declared a function as
follows:

Unfortunately, $x now contains a 'pig' key and the non-existent $y has
been transformed into an object:

Short answer: No. What you're trying to do can not be done from an
extension.

-Sara