ID: 29736
Updated by: [EMAIL PROTECTED]
Reported By: hans at velum dot net
-Status: Open
+Status: Bogus
Bug Type: Feature/Change Request
-Operating System: All
+Operating System: *
PHP Version: 5.0.1
New Comment:
Can't reproduce:
[EMAIL PROTECTED] /usr/src/PHP_5_0 $ php -r 'function __autoload($name) {
var_dump($name); } $x = NULL; var_dump($x instanceof test);'
make: `sapi/cli/php' is up to date.
string(4) "test"
Fatal error: Class 'test' not found in Command line code on line 1
[EMAIL PROTECTED] /usr/src/PHP_5_0 $ php -r 'function __autoload($name) {
var_dump($name); eval("class $name {}");} $x = NULL; var_dump($x
instanceof test);'
make: `sapi/cli/php' is up to date.
string(4) "test"
bool(false)
So the problem lies in unserialize() -> other bug
Previous Comments:
------------------------------------------------------------------------
[2004-08-18 16:31:23] hans at velum dot net
Description:
------------
[pasted from messages on internals@ list]
I like the new $obj instanceof ClassName way of checking class /
interface types, .... but this method does have one major drawback
compared to the old is_a() approach:
The class must be loaded in order to perform an instanceof check!
There are many situations where you do not want to have to load every
class to see whether a returned object is a class of that type. In
particular for driver classes, the current model requires loading
*every* possible driver in order to check to see which type of class
was returned.
is_a() works great, but has been deprecated and is now generating
E_STRICT errors.
Reproduce code:
---------------
[conributed by Sean Coates on internals@ list]
<?php
class Foo {}
$foo = unserialize('O:3:"Foo":0:{}');
echo '$foo is_a Foo? '. (is_a($foo, 'Foo') ? 'yes' : 'no') ."\n";
echo '$foo instanceof Foo? '. ($foo instanceof Foo ? 'yes' : 'no')
."\n";
?>
---- and ----
<?php
//class Foo {}
$foo = unserialize('O:3:"Foo":0:{}');
echo '$foo is_a Foo? '. (is_a($foo, 'Foo') ? 'yes' : 'no') ."\n";
echo '$foo instanceof Foo? '. ($foo instanceof Foo ? 'yes' : 'no')
."\n";
?>
Expected result:
----------------
$foo is_a Foo? yes
$foo instanceof Foo? yes
---- and ----
$foo is_a Foo? no
$foo instanceof Foo? no
Actual result:
--------------
$foo is_a Foo? yes
$foo instanceof Foo? yes
---- and ----
$foo is_a Foo? no
Fatal error: Class 'Foo' not found in
/home/sean/phpdoc/scripts/tmp/is_a.php on line 8
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=29736&edit=1
