Permissions for specific user

[TheAdminMarket]

Hello,

I've seen that with the code below I can check if the active user has permissions for a specific action:

if ($permissions["my_plugin"] & $vbulletin->bf_ugp["my_plugin"]["post"])
{
     echo "He can post";
} else {
     echo "No permissions to post";
}

But as I said before this works for the current active user. What if I want to check if the user with userid=77 has such permission?

Checking a relevant code I found how to get the online status of a specific user:

$userid = 77;
$userinfo = verify_id('user', $userid, 1, 1);
$online_status = fetch_online_status($userinfo, true);

So, is there any similar way to get as true/false if a specific user has a specific permission?

EDITED ----------------

Currently I'm using the follow way to do it:
1.- I'm setting a vBulltin option to hold the usegroupids that have this permission: eg 1,4,5
2.- With the help of a function I'm getting the result

PHP Code:

function getPostPermission($userid)
{
    global $db, $vbulletin, $vboptions, $permission;

    if (!$userid || $userid <= 0)
    {
        $permission = 0;
    } else {
        $sql_user = $vbulletin->db->query_first("SELECT * FROM ".TABLE_PREFIX."user WHERE userid=$userid LIMIT 1");
        $all_ids = array();
        $all_ids = explode(',', $sql_user["membergroupids"]);
        array_push($all_ids, $sql_user["usergroupid"]);
        $allowed = array();
        $allowed = explode(',', $vbulletin->options["post_usergroups"]);
        $has_common = array_intersect($all_ids, $allowed);
        if (count($has_common) == 0)
        {
            $permission = 0;
        } else {
            $permission = 1;
        }
    }
    return $permission;
} 


Thank you