Those days had problems on getting to work zend_amf on a production server.

On my developement machine everything was working fine. Services were working, sending strings, arrays and custom VO’s from and to flex was working like a charm.

Once uploaded via ftp to the production server I started testing and got into the famous “Unable to parse null body data…” error.

google(Unable to parse null body data zend_amf)

Magically after 5 hours reading blog posts and official zend’s jira i got myserlf lost. I had typed VO’s going our from the services but no way to send from flex a VO to a zend_amf Service.

The thing started working right when included directly the VO file in gateway.php
instanced in a variable and then echoed to the buffer file. see below Tweaked code

Once verified the class was instantiated and the trace was ok i switched back to the original gateway code and everything started working. see gateway.php

Now the question is.. is it a php5 common behaviour or a zend_amf problem?

Comments on this topic are welcome

Follows example code

Before tweak
[php]

require_once 'Zend/Amf/Server.php';

//include all the dao related files
require_once('include_dao.php');

$server = new Zend_Amf_Server();

$server->setProduction(true);

$server->addDirectory(dirname(__FILE__) .’/dao/’);

// as php
$server->setClassMap(‘User’,'User’);

echo($server->handle());

?>
[/php]

Tweaked

[php]

require_once 'Zend/Amf/Server.php';

//include all the dao related files
//require_once('include_dao.php');

// DO NOT IMPORT ALL THE CLASSES import directly the class
require_once('dao/vo/User.php');

$server = new Zend_Amf_Server();

$server->setProduction(true);

$server->addDirectory(dirname(__FILE__) .’/dao/’);

// as php
$server->setClassMap(‘User’,'User’);

// do not start server
//echo($server->handle());

// instance object
$myuser = new User();

// trace to page buffer
echo(print_r($myuser,true));

?>
[/php]

User.php in “dao/vo/”

[php]
/**
* Object representing record of table 'user'
*
* @author: MattiMatti
* @date: 2009-03-23 12:21
*/
class User{

// ZEND AMF DO NOT REQUIRE $_explicitType

function User(){

}

public $id;

public $code;

public $validated;

public $validationDate;

public $username;

public $password;

public $email;

}
?>
[/php]

include_dao.php in same folder as gateway.php

[php]
//include all DAO files
require_once('dao/DAOFactory.php');
require_once('dao/vo/User.php');
require_once('dao/UserController.php');
?>
[/php]

2 Responses

1. JaneRadriges says:

   13 June 2009 at 6:55 pm

   Hi, gr8 post thanks for posting. Information is useful!
2. LeraJenkins says:

   22 June 2009 at 3:35 pm

   Bravo, very good idea