SoapServer::setPersistence

(PHP 5, PHP 7, PHP 8)

SoapServer::setPersistence — Activa el modo persistente de SoapServer

Descripción

public SoapServer::setPersistence(int $mode): void

Esta función permite cambiar la persistencia de un objeto SoapServer entre las peticiones. Permite guardar los datos entre las peticiones, mediante las sesiones PHP. Esta función solo tiene efecto después de haber exportado la lista de funciones mediante SoapServer::setClass().

Nota:
La constante de persistencia SOAP_PERSISTENCE_SESSION hace persistentes únicamente los objetos de la clase dada, pero no los datos estáticos. En este caso, $this->bar en lugar de self::$bar.

Nota:
SOAP_PERSISTENCE_SESSION serializa los datos del objeto entre las peticiones. En el caso de los recursos (por ejemplo PDO), __wakeup() y __sleep() deben ser utilizadas.

Parámetros

mode

Una de las constantes SOAP_PERSISTENCE_*.

SOAP_PERSISTENCE_REQUEST - Los datos de SoapServer no son persistentes entre las peticiones. Este es el comportamiento por omisión de todo objeto SoapServer después de llamar a setClass().

SOAP_PERSISTENCE_SESSION - Los datos de SoapServer persisten entre las peticiones. Esto se realiza serializando los datos de la clase SoapServer en $_SESSION['_bogus_session_name'], por lo que session_start() debe ser llamada antes de pasar a este modo de persistencia.

Valores devueltos

No se retorna ningún valor.

Ejemplos

Ejemplo #1 Ejemplo SoapServer::setPersistence()

<?php
 class MyFirstPersistentSoapServer {
     private $resource; // (Por ejemplo PDO, mysqli, etc..)
     public $myvar1;
     public $myvar2;

     public function __construct() {
         $this->__wakeup(); // Se llama a nuestro wakeup para reiniciar nuestro recurso
     }

     public function __wakeup() {
         $this->resource = CodeToStartOurResourceUp();
     }

     public function __sleep() {
         // Se asegura de eliminar $resource aquí, así nuestros datos pueden persistir en sesión
         // Si se olvida, la deserialización en la próxima petición fallará y nuestro objeto
         // SoapObject no será persistente entre las peticiones.
         return array('myvar1','myvar2');
     }
 }

 try {
     session_start();
     $server = new SoapServer(null, array('uri' => $_SERVER['REQUEST_URI']));
     $server->setClass('MyFirstPersistentSoapServer');
     // setPersistence() DEBE ser llamada después de setClass(), ya que el comportamiento de setClass()
     // afecta SESSION_PERSISTENCE_REQUEST.
     $server->setPersistence(SOAP_PERSISTENCE_SESSION);
     $server->handle();
 } catch(SoapFault $e) {
     error_log("SOAP ERROR: ". $e->getMessage());
 }
?>

Ver también

SoapServer::setClass() - Configura la clase que será utilizada para gestionar las peticiones SOAP

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User Contributed Notes 6 notes

down

csnaitsirch at web dot de ¶

15 years ago

I want to give one example for the order of commands if you want to use a class in persistence mode.

<?php
// 1. class definition or include
class UserService
{
    public function __construct() { }
}

// 2. start the session after defining or including the class!!
session_start();

// 3. instanciate the server
$server = new SoapServer(null, array("something"));

// 4. set the class to use
$server->setClass('UserService');

// 5. set persistance mode
$server->setPersistence(SOAP_PERSISTENCE_SESSION);

// 6. handle the request
$server->handle();
?>

down

boogiebug at gmail dot com ¶

17 years ago

setPersistence works only for a single instance of service class.

To use multiple instance of services objects, you need to instantiate the classes into objects and use an undocumented SoapServer's method - setObject() to add the service object into the SoapServer object, and handle the service object persistence with $_SESSION instead.

For example:

$ServiceObjects = array()
$ServiceObjects[0] = new ServiceClass1();
$ServiceObjects[1] = new ServiceClass2();
$ServiceObjects[2] = new ServiceClass3();

$_SESSION['ServiceClass1'] = $ServiceObjects[0];
$_SESSION['ServiceClass2'] = $ServiceObjects[1];
$_SESSION['ServiceClass3'] = $ServiceObjects[2];

...

$Servers = array()
for ( $i = 0; $i < count($ServiceObjects); i++)
{
  $s = new SoapServer($wsdl);
  $s->setObject($ServiceObject[$i]);
  $Servers[] = $s;
}

...

$Server[$i]->handle()

...

down

jan at pinna dot nl ¶

17 years ago

I found that using both modes (SOAP_PERSISTENCE_SESSION and SOAP_PERSISTENCE_REQUEST) cannot be used simultaniously. Because it didn't work at once, I started experimenting by using different settings and as stated below in the comments, "...also use SOAP_PERSISTENCE_REQUEST to save objects between requests" led me to think it was nessecary to use both modes. Well, it might for others, be but for me it turned out a day of freaking out ;) (trying all kinds of session stuff, etc etc).
Also, if persistence doesn't work, please check if session_start() is called somewhere in the script and try not to call it twice or whatsoever: it won't work...

down

jared at ws-db dot com ¶

20 years ago

I had some issues getting session persistence (SOAP_PERSISTENCE_SESSION) to work. I finally got it working after setting session.auto_start=0, and then only calling session_start() in the script containing the SoapServer. Maybe this is obvious, but took me a bit to figure it out.

I only tried it with session.use_cookies=1, so if the settings above don't work for you, make sure cookies are enabled, though it may work without the need for cookies.

down

cperez1000 at hotmail dot com ¶

20 years ago

Always remember to place the "setPersistence" method before the handle method, otherwise it won't work.  It sounds obvious, but it's still a very common mistake, since no errors are shown.

down

doug dot manley at gmail dot com ¶

17 years ago

When using "SoapServer::setPersistence( SOAP_PERSISTENCE_SESSION )", you apparently MUST include the class that was used in "SoapServer::setClass()" BEFORE any "session_*" commands.

I found this out using "__autoload()" and a whole lot of "syslog()"; it kept failing to include the class that I was using for my soap server, but that class is ONLY ever referenced by the page itself, and even then only for the purposes of setting the class for the soap server; none of my code would ever cause it to autoload.  The problem was that I was including my session-handling code first.

If the session gets started BEFORE the page defines the class definition, then persistence CANNOT happen.

The order should be:
1. Include the class for use with the soap server.
2. Start up your session.
3. Set up your soap server.
4. Handle your soap request.

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