<?php
$intvar = "77";
settype($intvar, "integer");
$req = xmlrpc_encode_request("NameOfRemoteCall', $intvar);
echo $req;
?>

<?xml version="1.0" encoding="iso-8859-1"?>
<methodCall>
<methodName>NameOfRemoteCall</methodName>
<params>
<param>
<value><int>77</int></value>
</param>
</params>
</methodCall>