pabx-app/integracao/rest.php

<?php

require 'zend/Rest/Server.php';
require 'zend/Rest/Exception.php';
$server = new Zend_Rest_Server();
$server->setEncoding('ISO-8859-1');

/**
 * Hello
 *
 * @param string $msg
 * @return string
 *
 */
function Hello($msg) {
    $encode = $GLOBALS['server']->getEncoding();
    $xml = "<?xml version=\"1.0\" encoding=\"$encode\"?>
         <integracao>
              <value>$msg</value>
               <code>200</code>
        </integracao>";

    $xml = simplexml_load_string($xml);
    return $xml;
}

function Div($num, $div) {
    $erro = "";
    $status = "OK";
    $result = @($num / $div);
    $erro = error_get_last();
    if ($erro)
        throw new Zend_Rest_Exception("Erro");
    return $result;
}

/*
  function Div($num, $div)
  {
  $erro = "";
  $status = "OK";
  try
  {
  $result = @($num / $div);
  $erro = error_get_last();
  if($erro)
  throw new Exception($erro['message']);
  }
  catch(Exception $e)
  {
  $status = "ERRO";
  $erro = $e->getMessage() . "Linha: " . $e->getLine();
  }
  $encode = $GLOBALS['server']->getEncoding();
  $xml = "<?xml version=\"1.0\" encoding=\"$encode\"?>
  <integracao>
  <value>$result</value>
  <status>$status</status>
  <erro>$erro</erro>
  </integracao>";

  $xml = simplexml_load_string($xml);
  return $xml;
  }
 */

$server->addFunction("Hello");
// $server->addFunction("Div");
$server->handle();
?>