Giving 2 parameters to remote_function using 'with'

I'm trying to give several parameters in a remote_function like this:

<?php 
echo remote_function(array( 'update' => 'test',
                           'url' => 'conges/verifdate',
                           'with' => "'date_deb=' + $('date_debut').value"
                    ));
?>

This code works (in my action.class I can get the parameter).

But when I开发者_运维百科 try to give a second parameter, it doesn't work:

<?php
    echo remote_function(array( 'update' => 'test',
                           'url' => 'conges/verifdate',
                           'with' => "'date_deb=' + $('date_debut').value"."'+&date_fin=' + $('date_fin')"
                    ))
?>

What am I doing wrong?

I did it like this:

'url' => 'conges/verifdate?vars=serialize(array("var1" => 1, "var2" => 2))'

In your remote action you do:

$vars = unserialize($request->getParameter('vars'));