Feat implement

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+jobs:
+  build-and-test:
+    name: PHP ${{ matrix.php-version }} (${{ matrix.ts }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        php-version: ['8.4', '8.5']
+        ts: [nts, zts]
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+          set-safe-directory: true
+          token: ${{ github.token }}
+
+      - name: Setup PHP (${{ matrix.php-version }} ${{ matrix.ts }})
+        uses: shivammathur/setup-php@7c071dfe9dc99bdf297fa79cb49ea005b9fcadbc # 2.37.1
+        with:
+          php-version: ${{ matrix.php-version }}
+          extensions: none
+          coverage: none
+          ini-values: zend.assertions=1
+        env:
+          phpts: ${{ matrix.ts }}
+
+      - name: Show PHP build info
+        run: |
+          php -v
+          php -r 'echo "ZTS: ", PHP_ZTS ? "yes" : "no", PHP_EOL;'
+          php-config --configure-options | tr ' ' '\n' | grep -i zts || true
+
+      - name: phpize
+        run: phpize
+
+      - name: configure
+        run: ./configure --enable-cedar
+
+      - name: make
+        run: make -j2
+
+      - name: make test
+        run: |
+          # NO_INTERACTION=1 keeps run-tests.php non-interactive on
+          # failure; REPORT_EXIT_STATUS=1 makes a single failed test
+          # fail the job.
+          NO_INTERACTION=1 REPORT_EXIT_STATUS=1 make test
+
+      - name: Upload failed test diffs
+        if: failure()
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a #v7.0.1
+        with:
+          name: phpt-failures-${{ matrix.php-version }}-${{ matrix.ts }}
+          path: |
+            tests/**/*.diff
+            tests/**/*.log
+            tests/**/*.out
+          if-no-files-found: ignore

.gitignore

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+# phpize / autotools build artifacts
+*.dep
+*.la
+*.lo
+*.loT
+*.o
+.deps/
+.libs/
+.libtool
+autom4te.cache/
+build/
+config.h
+config.h.in
+config.h.in~
+config.log
+config.nice
+config.status
+configure
+configure~
+configure.ac
+configure.in
+libtool
+ltmain.sh
+Makefile
+Makefile.fragments
+Makefile.global
+Makefile.objects
+mkinstalldirs
+modules/
+run-tests.php
+acinclude.m4
+aclocal.m4
+
+# gen_stub.php artifacts
+cedar_legacy_arginfo.h
+
+# test artifacts
+tests/**/*.diff
+tests/**/*.exp
+tests/**/*.log
+tests/**/*.out
+tests/**/*.php
+tests/**/*.sh
+tests/**/*.mem

LICENSE

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+Copyright (c) 2026 Tatsuya Kamijo
+Copyright (c) 2026 Bengo4.com, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+The bundled Cedar evaluator sources under `src/cedar/` (excluding
+`php_cedar_compat.h`, `php_cedar_compat.c`, and `UPSTREAM.md`) are a snapshot
+of nxe-cedar (https://github.com/kjdev/nxe-cedar). They retain their original
+license from upstream; see `src/cedar/UPSTREAM.md` for the snapshot commit and
+re-import policy.