Description:
------------
When I write the codes concerning type conversion, I found the entitled "bug". Then, I check the documentation, and I found the statement "an object with zero member variables (PHP 4 only) is considered FALSE" in~ 
http://php.net/manual/en/language.types.boolean.php
However, I am NOT going to ask for reopening the above "feature". Instead, I am going to ask for correcting the "bug" so that "an object with class stdClass and zero member variables is considered FALSE". The behavior of empty() should also be changed accordingly. 

The extensions that I used: 
[PHP_GD2]
extension=php_gd2.dll
[PHP_MBSTRING]
extension=php_mbstring.dll
[PHP_MCRYPT]
extension=php_mcrypt.dll
[PHP_MYSQL]
extension=php_mysql.dll
[PHP_MYSQLI]
extension=php_mysqli.dll
[Zend]
zend_extension_ts="C:\Program Files\PHP\lib\ZendExtensionManager.dll"
zend_extension_manager.optimizer_ts="C:\Program Files\PHP\lib\Optimizer-3.3.0"
zend_extension_manager.debug_server_ts="C:\Program Files\PHP\lib\Debugger-5.2.10"

Reproduce code:
---------------
$foo = null; settype($foo, 'object');
$cv_foo = get_class_vars(get_class($foo)); $ov_foo = get_object_vars($foo);
echo gettype($foo).'<br/>'.get_class($foo).'<br/>'.var_export($cv_foo, true).'<br/>'.var_export($ov_foo, true).'<br/>'.isset($foo).'<br/>'.!empty($foo).'<br/>'.var_export($foo, true).'<br/><br/>';
$goo = null; settype($goo, 'array');
echo gettype($goo).'<br/>'.isset($goo).'<br/>'.!empty($goo).'<br/>'.var_export($goo, true).'<br/><br/>';
$hoo = false; settype($hoo, 'object');
$cv_hoo = get_class_vars(get_class($hoo)); $ov_hoo = get_object_vars($hoo);
echo gettype($hoo).'<br/>'.get_class($hoo).'<br/>'.var_export($cv_hoo, true).'<br/>'.var_export($ov_hoo, true).'<br/>'.isset($hoo).'<br/>'.!empty($hoo).'<br/>'.var_export($hoo, true).'<br/><br/>';
$joo = false; settype($joo, 'array');
echo gettype($joo).'<br/>'.isset($joo).'<br/>'.!empty($joo).'<br/>'.var_export($joo, true).'<br/><br/>';

Expected result:
----------------
object
stdClass
array (
)
array (
)
1

stdClass::__set_state(array(
))

array
1

array (
)

object
stdClass
array (
)
array (
  'scalar' => false,
)
1
1
stdClass::__set_state(array(
   'scalar' => false,
))

array
1
1
array (
  0 => false,
)

Actual result:
--------------
object
stdClass
array (
)
array (
)
1
1
stdClass::__set_state(array(
))

array
1

array (
)

object
stdClass
array (
)
array (
  'scalar' => false,
)
1
1
stdClass::__set_state(array(
   'scalar' => false,
))

array
1
1
array (
  0 => false,
)