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Remote Procedure Calls with PEAR::XML-RPC

By: bluephoenix	Search For More Articles! Disclaimer Author Terms
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2004-01-29

Table of Contents:

Remote Procedure Calls with PEAR::XML-RPC

The Example Script

An XML_RPC Exchange

Client Rewritten Example

Client Sending

Client Receiving

Server Rewritten Example

Distributed Function Requirements

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Remote Procedure Calls with PEAR::XML-RPC - An XML_RPC Exchange

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Now assume the script can be been divided into two segments. The first segment could be the getNameLength function which will reside at a distant RPC host. The second segment could reside in our XML-RPC client which sets the variables, calls the function and displays the results.

During the remote procedure, the XML-RPC client would send the RPC host the following XML:

&lt;?xml version="1.0"?&gt;
&lt;meathodCall&gt;
  &lt;methodName&gt;getLength&lt;/methodName&gt;
  &lt;params&gt;
    &lt;param&gt;
      &lt;value&gt;&lt;string&gt;George&lt;/string&gt;&lt;/value&gt;
    &lt;/param&gt;
    &lt;param&gt;
      &lt;value&gt;&lt;string&gt;Washington&lt;/string&gt;&lt;/value&gt;
    &lt;/param&gt;
  &lt;/params&gt;
&lt;/meathodCall&gt;

The RPC host would respond to the XML-RPC client with the following XML:

&lt;?xml version="1.0"?&gt;
&lt;methodResponse&gt;
  &lt;params&gt;
    &lt;param&gt;
      &lt;value&gt;&lt;int&gt;16&lt;/int&gt;&lt;/value&gt;
    &lt;/param&gt;
  &lt;/params&gt;
&lt;/methodResponse&gt;

Next: Client Rewritten Example >>

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