Valinor takes care of the construction and validation of raw inputs (JSON, plain arrays, etc.) into objects, ensuring a perfectly valid state. It allows the objects to be used without having to worry about their integrity during the whole application lifecycle.

The validation system will detect any incorrect value and help the developers by providing precise and human-readable error messages.

The mapper can handle native PHP types as well as other advanced types supported by PHPStan and Psalm like shaped arrays, generics, integer ranges and more.

The library also provides a normalization mechanism that can help transform any input into a data format (JSON, CSV, …), while preserving the original structure.

Serde (pronounced "seer-dee") is a fast, flexible, powerful, and easy to use serialization and deserialization library for PHP that supports a number of standard formats. It draws inspiration from both Rust's Serde crate and Symfony Serializer, although it is not directly based on either.

At this time, Serde supports serializing PHP objects to and from PHP arrays, JSON, YAML, and CSV files. It also supports serializing to JSON or CSV via a stream. Further support is planned, but by design can also be extended by anyone.