PHP 8.0 Features in PHP

// Named arguments
function createUser($name, $email, $role = 'user') {
    // ...
}
createUser(email: 'john@example.com', name: 'John');

// Union types
function processValue(int|string $value): void {
    // ...
}

// Match expression
$result = match($value) {
    1, 2 => 'low',
    3, 4, 5 => 'medium',
    default => 'high'
};

// Nullsafe operator
$country = $user?->getAddress()?->getCountry();