Description:
------------
I'm putting socket resource or any other resource into shared memory using shm_put_var and when im using shm_get_var i'm getting (int)0.

Test script:
---------------
Based on script finded on doc site.

<?php
define("FOPEN_RESOURCE", 1);
define("FOPEN_FILEPATH", __FILE__);

$fopen_resource = fopen(FOPEN_FILEPATH, "r");

var_dump($fopen_resource);

$shm_id = shm_attach(1);
if ($shm_id === false)
{
    echo "Fail to attach shared memory.\n";
}

if (!shm_put_var($shm_id, FOPEN_RESOURCE, $fopen_resource))
{
    echo "Failed to put var 1 in shared memory $shm_id.\n";
}

$sm_fopen_resource = shm_get_var($shm_id, FOPEN_RESOURCE);
if ($sm_fopen_resource === false)
{
    echo "Failed to retreive fopen_resource from Shared memory\r\n";
}

var_dump($sm_fopen_resource);

if($shm_id) shm_remove($shm_id);
if($fopen_resource) fclose($fopen_resource);


?>

Expected result:
----------------
resource(5) of type (stream)
resource(5) of type (stream)

Actual result:
--------------
resource(5) of type (stream)
int(0)