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Adding Class Methods - PHP

In this conclusion to a five-part article series on Web Services, you'll learn how to create a SOAP server, add server functions, and more. This article is excerpted from chapter 20 of the book Beginning PHP and Oracle: From Novice to Professional, written by W. Jason Gilmore and Bob Bryla (Apress; ISBN: 1590597702).

  1. SOAP Servers and Web Services
  2. Creating a SOAP Server
  3. Adding a Server Function
  4. Adding Class Methods
  5. SOAP Client and Server Interaction
By: Apress Publishing
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August 10, 2010

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Although the addFunction() method works fine for adding functions, what if you want to add class methods? This task is accomplished with the setClass() method. Its prototype follows:

void SoapServer->setClass(string class_name [, mixed args])

Theclass_nameparameter specifies the name of the class, and the optionalargs parameter specifies any arguments that will be passed to a class constructor. Letís create a class for the boxing quote service and export its methods usingsetClass():

class boxingQuotes {
function getQuote($boxer) {
            if ($boxer == "Tyson") {
$quote = "My main objective is to be professional
but to kill him. (2002)";
} elseif ($boxer == "Ali") {
$quote = "I am the greatest. (1962)";
} elseif ($boxer == "Foreman") {
$quote = "Generally when there's a lot of smoke,
there's just a whole lot more smoke. (1995)";
} else {
$quote = "Sorry, $boxer was not found.";
return $quote;

    $soapserver = new SoapServer("boxing.wsdl");


The decision to usesetClass()instead ofaddFunction()is irrelevant to any requesting clients.

Directing Requests to the SOAP Server

Incoming SOAP requests are received by way of either the input parameter soap_request or the PHP global $HTTP_RAW_POST_DATA. Either way, the method handle() will automatically direct the request to the SOAP server for you. Its prototype follows:

void SoapServer->handle([string soap_request])

Itís the last method executed in the server code. You call it like this:


Persisting Objects Across a Session

One really cool feature of the SOAP extension is the ability to persist objects across a session. This is accomplished with the setPersistence() method. Its prototype follows:

void SoapServer->setPersistence(int mode)

This method only works in conjunction withsetClass(). Two modes are accepted:

SOAP_PERSISTENCE_REQUEST: This mode specifies that PHPís session-handling feature should be used to persist the object.

SOAP_PERSISTENCE_SESSION: This mode specifies that the object is destroyed at the end of the request.

>>> More PHP Articles          >>> More By Apress Publishing

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