#43983 [Com]: Weird referencing with stdClass objects
| From: | ben at mailinator dot com | Date: | Mon, 07 Apr 2008 19:02:45 +0000 |
| Subject: | #43983 [Com]: Weird referencing with stdClass objects | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-124059@lists.php.net to get a copy of this message | ||
ID: 43983
Comment by: ben at mailinator dot com
Reported By: rubens21 at gmail dot com
Status: Open
Bug Type: Scripting Engine problem
PHP Version: 5.2.5
New Comment:
How is this weird? $test is an object. You store a reference to
$test,
and then you modify $test. Since you only stored a reference to the
original object, of course you will see the new value when you print
out
the reference.
This changed between PHP4 and PHP5. PHP4 stores a copy rather than a
reference. If you are looking for the PHP4 behavior, you can use the
"clone" keyword. e.g. $Objeto->valorDeTeste[] = clone $test;
Previous Comments:
------------------------------------------------------------------------
[2008-02-24 20:17:54] rubens21 at gmail dot com
I'm sorry, 'The same' = 'The same problem'
CODE:
$test = new stdClass();
$Objeto = new stdClass();
$test->valor = "The first value";
$Objeto->valorDeTeste[] = $test;
$test->valor = "The second value";
echo "<pre>";
print_r($Objeto->valorDeTeste);
echo "<br />";
var_dump($Objeto->valorDeTeste);
echo "</pre>";
Array
(
[0] => stdClass Object
(
[valor] => The second value
)
)
array(1) {
[0]=>
object(stdClass)#1 (1) {
["valor"]=>
string(16) "The second value"
}
}
------------------------------------------------------------------------
[2008-02-24 19:44:21] jani@php.net
That's impossible, the output of var_dump() differs a LOT from
print_r(). So can you please really test it?
------------------------------------------------------------------------
[2008-02-23 17:04:12] rubens21 at gmail dot com
"What does it output when you replace print_r() with var_dump() ?"
R: The same
------------------------------------------------------------------------
[2008-02-01 22:28:15] jani@php.net
What does it output when you replace print_r() with var_dump() ?
------------------------------------------------------------------------
[2008-01-30 15:40:53] rubens21 at gmail dot com
This example is more simple:
$test = new stdClass();
$Objeto = new stdClass();
$test->valor = "The first value";
$Objeto->valorDeTeste[] = $test;
$test->valor = "The second value";
print_r($Objeto->valorDeTeste);
Expected:
Array
(
[0] => stdClass Object
(
[valor] => The first value
)
)
Actual
Array
(
[0] => stdClass Object
(
[valor] => The second value
)
)
------------------------------------------------------------------------
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the rest of the comments, please view the bug report online at
http://bugs.php.net/43983
--
Edit this bug report at http://bugs.php.net/?id=43983&edit=1