Email Address VO

EmailAddress.php

<?php

declare(strict_types=1);

namespace My\Model;

final class EmailAddress implements ValueObject
{
    /** @var string */
    private $email;

    private function __construct(string $email)
    {
        $this->email = $email;
    }

    public static function fromString(string $email): EmailAddress
    {
        if (! \filter_var($email, FILTER_VALIDATE_EMAIL)) {
            throw new EmailAddressNotValid();
        }

        return new self($email);
    }

    public function toString(): string
    {
        return $this->email;
    }

    public function sameValueAs(ValueObject $other): bool
    {
        /** @var $other EmailAddress */

        return \get_class($this) === \get_class($other) && $this->email === $other->email;
    }
}