Remote Procedure Calls with PEAR::XML-RPC - Client Rewritten Example

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An XML-RPC package is provided by the default PEAR installation, which we can take advantage of to ease the creation and processing of XML-RPC calls. For more information on PEAR you may want to view one of my previous tutorials entitled Introduction to PEAR or visit the PEAR website at http://pear.php.net.

Our example script has now been rewritten to make an XML-RPC call to getNameLength using the PEAR::XML-RPC class. Also, the output is now more verbose so that we see the XML data that's transferred.

<?php require_once("XML/RPC.php"); $first = "George"; $last = "Washington"; $function = "getNameLength"; $p1 = new XML_RPC_Value($first, "string"); $p2 = new XML_RPC_Value($last, "string"); $params = array($p1, $p2); $message = new XML_RPC_Message($function, $params); $client = new XML_RPC_Client("/RPC2.php", "localhost", 80); $result = $client-&gt;send($message); echo "&lt;p&gt;&lt;b&gt;Function Call:&lt;/b&gt; $function($first, $last)&lt;/p&gt;"; echo "&lt;p&gt;&lt;b&gt;Sent XML Message:&lt;/b&gt;"; echo "&lt;pre&gt;" . htmlentities($message-&gt;serialize()). "&lt;/pre&gt;&lt;/p&gt;"; $value = $result-&gt;value(); $number = $value-&gt;scalarval(); echo "&lt;p&gt;&lt;b&gt;Return Value:&lt;/b&gt; $number &lt;/p&gt;"; echo "&lt;p&gt;&lt;b&gt;Received XML Message:&lt;/b&gt;"; echo "&lt;pre&gt;" . htmlentities($result-&gt;serialize()) . "&lt;/pre&gt;&lt;/p&gt;"; echo "&lt;p&gt;$first $last's name is $number letters long.&lt;/p&gt;"; ?>

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