prewk/option

Option object for PHP inspired by Rust

4.1.0 2025-08-15 19:01 UTC

Requires

• php: >=8.1.0
• prewk/result: >= 1.2.0

Requires (Dev)

• ergebnis/composer-normalize: 2.42.0
• infection/infection: 0.27.11
• phpunit/phpunit: 10.5.15
• psalm/plugin-phpunit: 0.19.0
• symplify/easy-coding-standard: 12.1.14
• vimeo/psalm: 5.24.0

(MIT or Apache-2.0)

• Oskar Thornblad

README

A PHP implementation of Rust's Option type with roughly the same API.

Version information

Version 4.x.x requires PHP 8.1+. Make sure you match the versions for this and the Result library if you use both.

Installation

composer require prewk/option

Usage

use Prewk\Option;
use Prewk\Option\{Some, None};

function findSomething(): Option {
    // ...
    if ($foundSomething) {
        return new Some($thing);
    } else {
        return new None;
    }
}

function findSomethingElse(): Result {
    // ...
    if ($foundSomething) {
        return new Some($thing);
    } else {
        return new None;
    }
}

// Fallback to value
$value = findSomething()->unwrapOr(null);

// Fallback to option and throw an exception if both fail
$value = findSomething()->or(findSomethingElse())->unwrap();

// Throw custom exception on missing thing (None)
$value = findSomething()->expect(new Exception("Oh noes!"));

License

MIT & Apache 2.0