Description:
------------
When connecting to the memcache server the variable "dissappears".

Reproduce code:
---------------
<?php
class A{
    function connect(){
        $memcache = new Memcache;
        if ( $memcache->pconnect ('10.1.1.10','11211') ){
            return 'OK';
        }
    }
}

$a = new A();
echo $a->connect(); //it says that $a does not exist
?>

Note, this works:

<?php
$a = new A();

class A{
    function connect(){
        $memcache = new Memcache;
        if ( $memcache->pconnect ('10.1.1.10','11211') ){
            return 'OK';
        }
    }
}
echo $a->connect(); //everything is OK
?>

Expected result:
----------------
OK

Actual result:
--------------
Notice: Undefined variable: a in /www/test.php on line 12

Fatal error: Call to a member function connect() on a non-object in /www/test.php on line 12