How to extract initials from a name using Laravel

I have the method below that returns me a list of registered users:

$users = \App\Models\User::all();

It turns out that I would like to present only the initials of the names on that list.

Example:

Carlos Pereira do Nascimento = CN

Marcos Aurelio = MA

Sandra Lopes = SL

How could I do this by getting this data from the list?

Is it possible for me to treat this list by taking only the initials of the variable $ name?

Something like this should work:

$names = \App\Models\User::pluck('name');
$initials = [];
foreach($names as $name) {
    $nameParts = explode(' ', trim($name));
    $firstName = array_shift($nameParts);
    $lastName = array_pop($nameParts);
    $initials[$name] = (
        mb_substr($firstName,0,1) .
        mb_substr($lastName,0,1)
    );
}

var_dump($initials);

Output:

array(1) {
  ["Carlos Pereira do Nascimento"]=>
  string(2) "CN"
  ["Marcos Aurelio"]=>
  string(2) "MA"
  ["Émile Durkheim"]=>
  string(2) "ÉD"
}

Note the use of mb_substr as opposed to regular substr or a string index. This will return correct values for names starting with non ASCII characters like for example "Émile"

echo substr('Émile Durkheim', 0, 1);
// output: b"Ã"
echo 'Émile Durkheim'[0];
// output: b"Ã"
echo mb_substr('Émile Durkheim', 0, 1);
// output: É