ts2php

ts2php is a TypeScript to PHP transpiler (v0.30.3, latest release Jan 2021) that converts TypeScript/JavaScript code into PHP. It aims to enable code sharing between front-end and back-end by translating TypeScript into PHP. Key differentiators: it supports a large subset of TypeScript features including classes, interfaces, generics, async/await, and standard library polyfills. It is read-only (not a bidirectional bridge) and generates PHP code that can be used in any PHP project. Releases have slowed, indicating maintenance mode. Requires TypeScript ^3.7.0 as a peer dependency.