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Customer.php
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Customer.php
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<?php
interface SayHello {
function sayHello(): string;
}
trait IndonesiaGender {
function inIndonesia(): string {
return match ($this){
Gender::Male => "Tuan",
Gender::Female => "Nyonya",
};
}
}
enum Gender: string implements SayHello
{
use IndonesiaGender;
case Male = "Mr";
case Female = "Mrs";
const Unknown = "Unknown";
static function fromIndonesia(string $value): Gender {
return match ($value){
"Tuan" => Gender::Male,
"Nyonya" => Gender::Female,
default => throw new Exception("Unsupported Indonesian Value")
};
}
function sayHello(): string{
return "Hello " . $this->value;
}
}
class Customer
{
public function __construct(public string $id,
public string $name,
public ?Gender $gender)
{
}
}
function sayHello(Customer $customer): string
{
if($customer->gender == null){
return "Hello " . $customer->name;
}else{
return "Hello " . $customer->gender->value . "." . $customer->name;
}
}
var_dump(sayHello(new Customer("1", "Budi", Gender::from("Mr"))));
var_dump(sayHello(new Customer("2", "Shinta", Gender::from("Mrs"))));
var_dump(sayHello(new Customer("2", "Shinta", Gender::tryFrom("Salah"))));
var_dump(Gender::cases());
var_dump(Gender::Male->sayHello());
var_dump(Gender::Female->sayHello());
var_dump(Gender::Male->inIndonesia());
var_dump(Gender::Female->inIndonesia());
var_dump(Gender::fromIndonesia("Tuan"));
var_dump(Gender::fromIndonesia("Nyonya"));
// var_dump(Gender::fromIndonesia("Salah")); // error
var_dump(Gender::Unknown);