qmllint resolves QML modules by walking the import path looking for a
directory layout that mirrors the URI (PhpQml.Bridge → PhpQml/Bridge/).
qt_add_qml_module's OUTPUT_DIRECTORY defaults to CMAKE_CURRENT_BINARY_DIR
— which, when consumers add_subdirectory() this with their own binary_dir
(skeleton: build/qml/php_qml_bridge, todo: build/qml/php_qml_bridge),
ends in `php_qml_bridge` instead of `PhpQml/Bridge`. cmake configure
warns about the mismatch:
The php_qml_bridge target is a QML module with target path
PhpQml/Bridge. It uses an OUTPUT_DIRECTORY of .../php_qml_bridge,
which should end in the same target path, but doesn't. Tooling
such as qmllint may not work correctly.
…and at lint time, qmllint can't find the module, so every file that
`import PhpQml.Bridge` (AppShell.qml, DevConsole.qml) fails with
"Failed to import PhpQml.Bridge", which cascades into bogus
"Unqualified access" warnings for every BackendConnection reference.
The cascade exits 255 in Qt 6.5.3's qmllint (CI), even when an older
local qmllint would only warn.
Fix: pin OUTPUT_DIRECTORY in the framework's own qt_add_qml_module so
the layout is correct regardless of how consumers wire up the
add_subdirectory binary_dir. Single source of truth in the framework,
no consumer-side change needed.
Verified locally: rebuild from scratch + `make quality` green
(qmllint clean of the cascade — only the pre-existing
DevConsole/Main.qml warnings remain, all non-fatal). PHPStan +
cs-fixer + 16 tests + maker snapshots also still green.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
php-qml
A framework for native desktop applications with a Symfony / FrankenPHP backend and a Qt / QML frontend, packaged as a single distributable per OS.
Status: Phase 5 / pre-v0.1.0. Phases 0–4a are merged (working framework, real POC, Linux AppImage, auto-update, release CI). macOS and Windows packaging are deferred to 4b/4c. See CHANGELOG.md.
What it is
php-qml lets a PHP developer write a desktop app using ordinary Symfony on the backend and ordinary QML on the frontend. The two halves run as a process pair inside one bundled binary:
- A Qt/QML host owns the window, input, and rendering.
- A bundled FrankenPHP child runs a Symfony app in worker mode.
- They communicate over a local socket — HTTP for commands and queries, Mercure SSE for state push.
It is not a PHP↔Qt language binding — the languages run in separate processes; the bridge is a wire protocol, not an FFI layer. That deliberately avoids the failure mode that left php-gtk and php-qt unmaintained.
60-second tour
git clone https://src.bundespruefstelle.ch/magdev/php-qml && cd php-qml
# Scaffold a fresh app
./bin/php-qml-init my-app
# Run it
cd my-app
make doctor # readiness check
make dev # FrankenPHP --watch + Qt host
Add a reactive resource (entity + REST controller + QML snippet) with one maker:
cd my-app/symfony
bin/console make:bridge:resource Todo
bin/console make:migration && bin/console doctrine:migrations:migrate -n
make dev opens the Qt window, connection state flips to Online, and the generated TodoList.qml shows a list whose ReactiveListModel is auto-subscribed to app://model/todo over Mercure. There is no handwritten cross-side glue.
For a non-trivial app with a multi-window test, crash-recovery test, and AppImage packaging, see examples/todo/.
Documentation
The full developer documentation lives under docs/:
- Getting started — prerequisites by distro, first project, troubleshooting.
- Architecture — process pair, transport, dev vs bundled mode.
- Update semantics — connection state machine, optimistic mutations, idempotency.
- Reactive models —
ReactiveListModel,ReactiveObject, Mercure dual-publish. - Makers —
make:bridge:resource/command/window. - Dev workflow — hot reload, dev console, editor setup,
bridge:doctor. - Bundled mode — supervisor, per-session secret rotation, first-launch migrations.
- Linux packaging —
make appimage, auto-update, performance budgets. - Configuration reference — env vars, CLI flags.
- QML API reference / PHP API reference — singletons, components, attributes, services.
Design rationale and roadmap live in PLAN.md. User-facing changes per release are in CHANGELOG.md.
Tech stack
PHP 8.4+ · Symfony 8 · Doctrine ORM 3 · FrankenPHP 1.12+ (worker mode) · Mercure · Qt 6.5+ · CMake · Composer · Gitea Actions
Roadmap
- Phase 0 ✅ throwaway transport spike.
- Phase 1 ✅ framework skeleton, dev mode, single-instance lock, CI quality gate.
- Phase 2 ✅ reactive models, update semantics, headline maker.
- Phase 3 ✅ POC todo app, integration + snapshot tests.
- Phase 4a ✅ bundled mode, Linux AppImage, release CI, AppImageUpdate.
- Phase 4b/4c ⏳ macOS / Windows packaging.
- Phase 5 🚧 DX polish — dev console, init script, hot-reload docs, v0.1.0 prep.
Contributing
Active development happens on the dev branch; main only carries release commits. Pull requests target dev.
cd framework/php && composer quality # PHPStan + cs-fixer + PHPUnit
cd examples/todo && make quality # adds qmllint + integration test
A dedicated CONTRIBUTING.md arrives with Phase 5's wrap-up.
Versioning
Semantic Versioning — MAJOR.MINOR.BUGFIX. Pre-v1.0.0, minor bumps may break public API.
License
To be decided before v0.1.0 is tagged. The framework's own code will be permissively licensed; Qt is shipped under LGPL with relinkability obligations — see PLAN.md §12.