note 52453 added to language.oop5.overloading

From: Date: Mon, 02 May 2005 09:15:37 +0000
Subject: note 52453 added to language.oop5.overloading
Groups: php.notes 
Request: Send a blank email to php-notes+get-88855@lists.php.net to get a copy of this message
for anyone who's thinking about traversing some variable tree by using __get() and __set(). i tried to do this and found one problem: you can handle couple of __get() in a row by returning an object which can handle consequential __get(), but you can't handle __get() and __set() that way. i.e. if you want to: <?php print($obj->val1->val2->val3); // three __get() calls ?> - this will work, but if you want to: <?php $obj->val1->val2 = $val; // one __get() and one __set() call ?> - this will fail with message: "Fatal error: Cannot access undefined property for object with overloaded property access" however if you don't mix __get() and __set() in one expression, it will work: <?php $obj->val1 = $val; // only one __set() call $val2 = $obj->val1->val2; // two __get() calls $val2->val3 = $val; // one __set() call ?> as you can see you can split __get() and __set() parts of expression into two expressions to make it work. by the way, this seems like a bug to me, will have to report it. ---- Manual Page -- http://www.php.net/manual/en/language.oop5.overloading.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+52453 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+52453&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+52453&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+52453&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+52453&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+52453&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+52453&report=yes Search -- http://master.php.net/manage/user-notes.php

« previous php.notes (#88855) next »