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1 11th July 00:24
php-bugs
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Posts: 1
Default #40477 : object's read property handler not used in zend_print_zval_r_ex


ID: 40477
User updated by: piotrek dot pokora at gmail dot com
Reported By: piotrek dot pokora at gmail dot com
Status: Bogus
Bug Type: Variables related
Operating System: debian/linux
PHP Version: 5.2.1
New Comment:


Zend


Please, f****ve me. But don't you think that do***entation privided by
ZEND clearly states:

"read_property - returns zval *, containing the value of the
property. Is used when value of the property should be retrieved for
reading."

It doesn't tell about any exceptions.

I will be more than glad to ask you about such exceptions at pecl-dev
list but unfortunatelly I didn't get any confirmation after using ( few
times ) submit form at http://pecl.php.net/support.php#lists.

If I can not subscribe to this list with this form , please subscribe
me using my mail.

I am looking forward for detailed clarification.


Previous Comments:
------------------------------------------------------------------------

[2007-02-15 09:48:33] tony2001@php.net


No, this is a list when I'm ready to explain any question regarding
Zend Engine sources to a person who haven't ever heard of respect.

------------------------------------------------------------------------

[2007-02-15 09:36:25] mike@php.net

Stop ranting and grasp the facts.

------------------------------------------------------------------------

[2007-02-15 09:32:19] piotrek dot pokora at gmail dot com

Is this a list for reporting ZEND bugs?

http://cvs.php.net/viewvc.cgi/ZendEngine2/zend.c?revision=1.393&view=markup

function: static void print_hash(HashTable *ht, int indent, zend_bool
is_object TSRMLS_DC)

printing value:
ZEND_PUTS("] => ");
zend_print_zval_r(*tmp, indent+PRINT_ZVAL_INDENT TSRMLS_CC);
ZEND_PUTS("\n");

`tmp` pointer is not a pointer for a zval returned by ANY
read_property. Neither standard nor user defined one.

If you are going to keep this bug with bogus status, I am going to
submit another one.

Logic and consistency is broken here. And this is absolutely a bug.
Behaviour of this function's part is unchanged since ZEND1 engine.

------------------------------------------------------------------------

[2007-02-15 09:03:05] tony2001@php.net

pecl-dev@lists.php.net

------------------------------------------------------------------------

[2007-02-14 20:51:42] piotrek dot pokora at gmail dot com

OK, let's talk code.

Sources.
GObject and GValue wrappers for a case we talk about:
http://midgard.tigris.org/source/browse/midgard/src/apis/php4/php_midgard_gobject_generic.c?rev=1.5&view=log

midgard_config class constructor and methods:
http://midgard.tigris.org/source/browse/midgard/src/apis/php4/php_midgard_config.c?rev=1.4&view=markup

PAY SPECIAL ATTENTION! There's no get_properties hook function.

PHP code:

$a = new midgard_config();
/* $a has underlying GObject object so properties for this object are
already assigned */
$a->read_file("my_config", TRUE);
print_r($a);
echo $a->dbtype;

Output:

midgard_config Object
(
[__res] => Resource id #8
[dbtype] =>
[database] =>
[dbuser] =>
[dbpass] =>
[host] =>
[blobdir] =>
[logfilename] =>
[schema] =>
[defaultlang] =>
[loglevel] =>
[tablecreate] =>
[tableupdate] =>
[testunit] =>
[midgardusername] =>
[midgardpassword] =>
[authtype] => 0
[pamfile] =>
)
MySQL

Do you see 'MySQL' value in print_r output?
Why then echo $a->dbtype; outputs MySQL? Even if I use standard ( not
defined by me ) get_properties handler??

Because language respect my read_property hook, isn't it.

Do you want similiar code for derived class?
Or maybe you can look at zend_print_zval_r_ex and notice that
print_hash is used for IS_ARRAY and IS_OBJECT value type?

DO YOU SEE read_property hook invoked by print_hash function??

Maybe I misunderstood something here but this is not the fact that
IS_ARRAY != IS_OBJECT and zend_print_zval_r_ex
ignores completely user's read_property hook.

------------------------------------------------------------------------

The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
http://bugs.php.net/40477

--
Edit this bug report at http://bugs.php.net/?id=40477&edit=1
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