Description:
------------
For our application we use a $db which represents the database connection object.

In the class, instead of creating a new object every time, we do : global $db, which retrieves the database connection from outside the class.

That works good! 

However, when we call that class from a soap server, for some reason it does not get the $db variable (its blank)...

Reproduce code:
---------------
// Code
$db = new MySQL();


// class

class X extends A
{
        public function __construct($params)
	{
		global $db;
		$this->db = $db;
		$this->init($params);
	}

Expected result:
----------------
that the global $db; in the constructor contains the db connection

Actual result:
--------------
blank variable