#36422 [Opn->Csd]: unserialize() __autoloads invalid objects

ID: 36422 Updated by: colder@php.net Reported By: tomas_matousek at hotmail dot com -Status: Open +Status: Closed Bug Type: Documentation problem Operating System: WinXP PHP Version: 5.1.2 -Assigned To: +Assigned To: colder New Comment: Note is now integrated in the manual. Previous Comments: ------------------------------------------------------------------------ [2006-02-17 11:42:58] colder@php.net It is an object, but not a valid one. The object is not expected to work, so is_object() will return false. It's already stated in the user comments: http://php.net/is_object#59209 ------------------------------------------------------------------------ [2006-02-17 10:22:33] tomas_matousek at hotmail dot com An what is it if it is not an object? Array? Some new PHP type? So, why var_dump reports is as object? This: var_dump(gettype($o)); var_dump($o->__PHP_Incomplete_Class_Name); displays: string(6) "object" NULL ------------------------------------------------------------------------ [2006-02-16 20:59:07] tony2001@php.net This is expected, as object of __PHP_Incomplete_Class is actually not valid object. Reclassified as docu problem. ------------------------------------------------------------------------ [2006-02-16 20:36:56] tomas_matousek at hotmail dot com Description: ------------ When unserialize calls __autoload() and this dosn't load the required class unserialize returns an object that doesn't behave like object; var_dump displays it as an object but is_object gives false. Reproduce code: --------------- function __autoload($class_name) { } var_dump($o = unserialize('O:1:"X":0:{}')); var_dump(is_object($o)); Expected result: ---------------- object(__PHP_Incomplete_Class)#1 (1) { ["__PHP_Incomplete_Class_Name"]=> string(1) "X" } bool(true) Actual result: -------------- object(__PHP_Incomplete_Class)#1 (1) { ["__PHP_Incomplete_Class_Name"]=> string(1) "X" } bool(false) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=36422&edit=1