note 61849 added to language.references.pass

I'm still new to PHP so please bear with me. I have two simple classes: class Foo { private $Bars; // an array of Bar objects function Foo() { $this->Bars = array(); } function addBar( &$bar ) { array_push( $this->Bars, $bar ); } function toString() { while ( $bar = each( $this->Bars) ) { echo $bar->toString() // this generates an error } } } class Bar { function toString() { return "Test"; } } $foo = new Foo(); $foo->addBar( new Bar() ); $foo->toString(); Which generates the following error: Fatal error: Call to a member function toString() on a non-object in test.php Can any of you PHP gurus point me to what I'm doing wrong? ---- Server IP: 64.71.164.2 Probable Submitter: 139.76.128.68 ---- Manual Page -- http://www.php.net/manual/en/language.references.pass.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+61849 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+61849&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+61849&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+61849&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+61849&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+61849&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+61849&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+61849&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+61849&report=yes Search -- http://master.php.net/manage/user-notes.php