<?php  header("Content-Type: application/json");
//Configuration begin
$access = "1C957AEB4365B1A8";
$userid = "wangtong";
$passwd = "ajaxU2012";
$AVurl = 'https://wwwcie.ups.com/ups.app/xml/AV';
$myctx="Testing1234";
//Configuration end

//// functions begin
function getResponse(&$AVurl, &$reqXMLstr)
{ try
  { $form = array //create Post request
    ( 'http' => array
      ( 'method' => 'POST',
        'header' => 'Content-type: application'
             . '/x-www-form-urlencoded',
        'content' => "$reqXMLstr"
      )
    );
    $request = stream_context_create($form);
    $conn = fopen($AVurl, 'rb' , false , $request);
    if(!$conn) throw new Exception
                 ("{'error':'Connection failed'}");
    $response = stream_get_contents($conn);
    fclose($conn);
    if($response == false) throw new Exception("{'error': 'Bad data'}");
  } catch(Exception $ex) { echo $ex; }
  return $response;
}

function verify(&$response)
{ global $city, $state, $zip;
  try
  { // process response 
    $resp = new SimpleXMLElement($response);
    $status=$resp->Response->ResponseStatusDescription;
    $quality=$resp->AddressValidationResult->Quality;
    $vcity=$resp->AddressValidationResult->Address->City;
    $vstate=$resp->AddressValidationResult->Address->StateProvinceCode;
    if ( $status=="Success" && $quality > 0.96 
         && $vcity == strtoupper($city)
         && $vstate == strtoupper($state) 
       ) echo'{"AV": 1}'; 
    else echo '{"AV": 0}';
  } catch(Exception $ex) { echo "{'error':'" . $ex . "'}"; }
}
//// functions end

// testing from command line
if ( !empty($argv[1]) )
{  $city=$argv[1]; $state=$argv[2]; $zip=$argv[3]; 
   //// php  AVClient.php Kent OH 442420001
   ////   outputs "{"AV": 1}" if OK
   ////   outputs "{"AV": 0}" if not OK
}
else if ( !empty($_REQUEST['c']) &&
          !empty($_REQUEST['s']) &&
          !empty($_REQUEST['z']) )
{  $city=$_REQUEST['c']; $state=$_REQUEST['s'];
   $zip=$_REQUEST['z'];
}
else {  exit;  }

require("AVRequestXML.php");   // sets $reqXMLstr
verify(getResponse($AVurl, $reqXMLstr));
?>