$users = [
    [
        "name" => "Alireza",
        "family" => "Ebrahimi",
        "age" => 42,
    ],
    [
        "name" => "Samyar",
        "family" => "Ebrahimi",
        "age" => 7,
    ],
];
$myArray = array_filter($users , function($user){
    return $user;
});
echo "<pre>";
print_r($myArray);
echo "</pre>";
echo "<hr>";
print_r($users[1]["name"]);
echo "<br>";
print_r($users[1]["family"]);
echo "<br>";
print_r($users[0]["age"]);
echo "<hr>";