note 48766 added to language.oop.magic-functions

From: Date: Thu, 06 Jan 2005 16:09:22 +0000
Subject: note 48766 added to language.oop.magic-functions
Groups: php.notes 
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There is a weird behavior occuring when serializing/unserializing a class derived from a (abstract) base class. The base may not unserialize itself if it has private members, because even if the derived class' __wakeup function is contains only parent::__wakeup() as its code, the unserialization takes place from the children's __wakeup() function and the parent's __wakeup() wont be called (as of php 5.0.3) and hence, private members from the parent wont ever be restored, even though they do serialize properly. This might/might not be a bug, but it is evil and is works not nicely with object oriented concepts. A workaround would be to put the base class' members protected or to (un)serialize manually the base class' via its derived class' __sleep() and __wakeup() ---- Manual Page -- http://www.php.net/manual/en/language.oop.magic-functions.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+48766 Delete -- http://master.php.net/manage/user-notes.php?action=delete+48766&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+48766&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+48766&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+48766&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+48766&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+48766&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+48766&report=yes Search -- http://master.php.net/manage/user-notes.php

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