eloquent collection - unique field on relationship - collections

Question

I have a User model and a Team model, and there can be many users (belongsToMany relatioship) in a Team. What I need now is to extract a list of all users from the teams that the logged in user is a member of.
I have below code currently:
$teams = $user->teams()->get()->pluck('id')->toArray();
return Team::whereIn('id', $teams)->with(['users'])->get()->map(function ($item) {
return $item->users->map(function ($user) {
return [
'name' => $user->name,
'email' => $user->email,
];
});
});
Above returns a collection, similar to below:
Collection {#375 ▼
#items: array:2 [▼
0 => array:3 [▼
0 => array:2 [▼
"name" => "John Doe",
"email" => "john.doe#mail.com"
]
1 => array:2 [▼
"name" => "Jane Doe",
"email" => "jane.doe#mail.com"
]
2 => array:2 [▶]
]
1 => array:2 [▼
0 => array:2 [▼
"name" => "Jane Doe"
"email" => "jane.doe#mail.com"
]
1 => array:2 [▼
"name" => "John Doe",
"email" => "john.doe#mail.com"
]
]
]
}
Here's a better view:
[
[
{
"name": "John Doe",
"email": "john.doe#mail.com"
},
{
"name": "Jane Doe",
"email": "jane.doe#mail.com"
},
{
"name": "John Doe",
"email": "john.doe#mail.com"
}
],
[
{
"name": "Jane Doe",
"email": "jane.doe#mail.com"
},
{
"name": "John Doe",
"email": "john.doe#mail.com"
}
]
]
As you can see I have duplicates, I need to get rid of those. I've tried using distinct and unique without success.

Answer 1

I partly solved it by using a foreach loop, but would prefer if I could get this data using the eloquent query.
$userArray = array();
foreach ($users as $user) {
if (array($user)) {
foreach ($user as $u) {
$userArray[] = $u['email'];
}
} else {
$userArray[] = $user['email'];
}
}
return array_unique($userArray);