Developer ports Quake III Arena engine to PHP, achieves playable result

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A developer has built a partial PHP port of Quake III Arena's engine, capable of loading PK3 game data, parsing BSP maps, handling player movement, and rendering a playable level. The project draws on id Software's GPL-licensed Quake III source code, released in 2005, as its technical and legal foundation. Native windowing is handled via PHP's FFI interface, while core engine logic — including BSP collision, rendering batches, and weapon firing — is implemented directly in PHP. The port does not replicate the full game: it lacks bot AI, multiplayer, QVM support, and menus, and world textures remain incomplete. The author's stated goal was to deepen understanding of the id Tech 3 engine by reimplementing its internals, rather than to argue PHP should replace C for game development.

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