Developing Web Services Using PHP
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Developing Web Services Using PHP
A web service consists of a server to serve requests to the web service and a client to invoke methods on the web service. The PHP class library provides the SOAP extension to develop SOAP servers and clients and the XML-RPC extension to create XML-RPC servers and clients.

Here's a tutorial on how to create XML-RPC and SOAP webservices in cases where REST won't do.
jQuery Taconite Plugin
jQuery Taconite Plugin This plugin for jQuery allows to send several fragments of HTML to the client, replace the existing content or append elements and even execute javascript all packaged in a neat XML document.
Turbo-charging xmlrpc
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Turbo-charging xmlrpc
A nice tutorial on usage of xmlrpc ajn jsonrpc in PHP and Ajax
ZeeMaps
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ZeeMaps
Decent international geocoding (address to geographical location) API published as REST, XMLRPC and SOAP webservice.
Flickr Services
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Flickr Services
One of the coolest features of Flickr is the open API.
Everything is open aand available trough REST, XMLRPC and SOAP calls
XML-RPC vs. SOAP
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XML-RPC vs. SOAP
A comparison of the two protocols
XMLRPC in ASP with UTF8
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Recently I needed to call XMLRPC functions from an ASP server.
There is a nice XMLRPC library available from David Carter-Tod but I had a small problem with it.
It messed up the UTF8 encoding of my strings.
I'm sure that I'm not the only one with this problem, so here's a simple solution:
Just add the following line at the beginning of the xmlrpc.asp file:
<%@ CodePage=65001 %>

Simple and effective :)
SoapWare.Org : xmlStorageSystem
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SoapWare.Org : xmlStorageSystem

xmlStorageSystem is an Internet storage system for XML documents that's programmable via XML-RPC and SOAP 1.1. This specification documents the system for SOAP 1.1, however the same procedures are also available in XML-RPC in UserLand's implementation.
XMLRPC for VB
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EnAppSys - Developers has a free download of VB sources for XMLRPC implemented in COM and ready to be used from VB.
They have a RS reader and a somehow trivial XML parser too.
XMLRPCCOM
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XMLRPCCOM
A COM component that implements a XMLPRC client and server.