TYPO3 Core

I'm curious; how did you stumble over this issue? Did TYPO3 actually executed this code?

I'm asking as there was a discussion recently about removing nusoap completely.

I just turned on some debugging, that's all.
PHP did show the hint on several frames in BE.

this is strange. There is no call, the only occurance i found is here:
// Avoid autoloading "soapclient", since it's only a strategy check here:
$content = (!defined('SOAP_1_2') && class_exists('soapclient', false)) ? base64_encode($infoArr['content']) : $infoArr['content']; // bug in NuSOAP - no automatic encoding

in class.em_terconnection.php

But there is no reference to the nusoap class. To be sure i renamed the file and tested EM again, without any error.
Why don't we remove this file?

Actually, I made an effort to remove nosoap completely in #19791. See also core list.
@see http://lists.netfielders.de/pipermail/typo3-team-core/2009-January/022233.html

This warning is shown in the EM's list of extensions.

Does this problem still occur with the latest TYPO3 4-3 version?

Please check.

TYPO3 v4.5+ does not ship with nusoap anymore.

Assignment by refernece was fixed for 4.3 between 4.3.0alpha3 and 4.3.0beta1 with:
commit f32a015e4162f2aa39b383e50f88ef342caaac1c
Author: Oliver Hader <oliver.hader@typo3.org>
Date: Fri Sep 18 10:44:02 2009 +0000
Follow-up to bug #11831: Removed reference operator from an object
git-svn-id: https://svn.typo3.org/TYPO3v4/Core/trunk@5974 709f56b5-9817-0410-a4d7-c38de5d9e867

- $this->wsdl =& new wsdl($this->wsdlFile,$this->proxyhost,$this->proxyport,$this->proxyusername,$this->proxypassword,$this->timeout,$this->response_timeout);
+ $this->wsdl = new wsdl($this->wsdlFile,$this->proxyhost,$this->proxyport,$this->proxyusername,$this->proxypassword,$this->timeout,$this->response_timeout);