#33652 [Opn->Asn]: $this not available in a variable variable

ID: 33652 Updated by: sniper@php.net Reported By: ludvig dot ericson at gmail dot com -Status: Open +Status: Assigned Bug Type: Scripting Engine problem -Operating System: Windows XP +Operating System: * -PHP Version: 5.0.4 +PHP Version: 5CVS-2005-07-11 -Assigned To: +Assigned To: dmitry New Comment: Works fine with PHP 4.4.0, not with latest CVS HEAD. Previous Comments: ------------------------------------------------------------------------ [2005-07-12 03:30:20] colder@php.net Notice also that ${'this'} will work but not ${'this'.''} or ${(string)'this'} for example. It should be at least documented that this pseudo-variable lacks some features. ------------------------------------------------------------------------ [2005-07-12 03:06:43] ludvig dot ericson at gmail dot com Description: ------------ Using variable variables ($$MyVar) in classes, through functions that is, doesn't allow $this to be used. I tried with $this (notice the $) too, no difference. A workaround is to check the object name, if it's "this" you could $this->$Mem instead. Reproduce code: --------------- <?php class Foo { public $MyVal = "Test"; public Bar($Obj, $Mem) { return ${$Obj}->$Mem; } } $TheObject = new Foo(); $Objname = "this"; $Memname = "MyVal"; echo $TheObject->Bar($Objname, $Memname); ?> Expected result: ---------------- I expect it to output "Test" Actual result: -------------- Notice: Undefined variable: this in (filepath) on line 6 Notice: Trying to get property of non-object in (filepath) on line 6 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=33652&edit=1