Description:
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I've been using php to create web services and experiment with them. One of the things I think is important to web services is true object functionality, which means setting a value and being able to retrieve that same value later. For example, if I want to call an operation (a setter) to set a certain value for an instance of a service port, I want to be able to retrieve that same value with a call to other operation (a getter) if I wanted to. The problem I've been having is when I make more than one operation call on a single instance of SoapClient. However, this problem only occurs when I use another php script as the service port itself. In other words, I'm using php at both ends: client and server. But when the service port is, say, a coldfusion component, I get no trouble at all. Could this be an issue with the web server I'm running? I am running Abyss Web Server X1 for both my client and server scripts.

Reproduce code:
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client side script:
$c = new SoapClient("http://localhost/session.php?wsdl");
$c->setString("my name is dennis");
echo $c->getString(); //this causes the error. If I called this first it would cause no trouble until I made another call to an operation

server side script:
//Session class definition goes above the follwing code:
$server = new SoapServer("Session.wsdl");
$server->setClass("Session");
$server->setPersistence(SOAP_PERSISTENCE_SESSION);
$server->handle();

Expected result:
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my name is dennis

Actual result:
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SoapFault exception: [HTTP] Error Fetching http headers in C:\Program Files\Abyss Web Server\htdocs\client.php:9
Stack trace:
#0 [internal function]: SoapClient->__doRequest('<?xml version="...', 'http://localhos...', 'http://tempuri....', 1)
#1 [internal function]: SoapClient->__call('getString', Array)
#2 C:\Program Files\Abyss Web Server\htdocs\client.php(9): SoapClient->getString()
#3 {main}