Built-in Casts Overview

Casts implement CastsValue with two methods:

• get(mixed $value): mixed — transforms raw input → typed PHP value (hydration)
• set(mixed $value): mixed — transforms PHP value → serializable form (serialization)

Quick Reference

Cast	Hydration result	Serialization output
DateTimeCast	DateTime	formatted string
DateTimeImmutableCast	DateTimeImmutable	formatted string
EnumCast	BackedEnum instance	backing value
BooleanCast	bool	bool
IntegerCast	int	int
FloatCast	float	float
TrimCast	trimmed string	trimmed string
JsonCast	array	JSON string
EncryptedCast	plaintext string	encrypted ciphertext

Applying Casts

use StdOut\SimpleDataObjects\Attributes\Cast;
use StdOut\SimpleDataObjects\Casts\DateTimeCast;

class EventData extends BaseData
{
    public function __construct(
        #[Cast(new DateTimeCast('Y-m-d H:i:s'))]
        public readonly DateTime $createdAt,
    ) {}
}

CastsValue Interface

interface CastsValue
{
    public function get(mixed $value): mixed;
    public function set(mixed $value): mixed;
}

See Custom Casts → for implementing your own.