Support PHP 8.1 and up

Lower the runtime and package floor from PHP 8.2 to 8.1 (composer.json, runtime/composer.json, Dockerfile) and rebuild the committed PHAR so its embedded platform check floors at 8.1.0 rather than rejecting 8.1 at startup. The daemon source already used no syntax above 8.1, so no application code changed.

Expand the CI test matrix to 8.3-8.5, where the Pest 4 toolchain runs (Pest 4 requires PHP 8.3). The PHP 8.1 runtime is validated end to end by the Docker smoke job, which boots the daemon on the php:8.1 image and forwards a payload.

Author: rubenvanassche

.github/workflows/run-tests.yml

@@ -28,7 +28,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest]
-        php: [8.4]
+        php: [8.3, 8.4, 8.5]
         stability: [prefer-lowest, prefer-stable]
 
     name: P${{ matrix.php }} - ${{ matrix.stability }} - ${{ matrix.os }}

Dockerfile

@@ -7,7 +7,7 @@ COPY . .
 RUN composer check-platform-reqs --no-dev
 RUN FLARE_DAEMON_VERSION=${FLARE_DAEMON_VERSION} bash ./build.sh
 
-FROM php:8.2-cli-alpine
+FROM php:8.1-cli-alpine
 
 ARG FLARE_DAEMON_VERSION=dev
 

build/daemon.phar

@@ -19,7 +19,7 @@
     ],
     "require": {
         "composer-runtime-api": "^2.2",
-        "php": "^8.2",
+        "php": "^8.1",
         "ext-zlib": "*"
     },
     "require-dev": {

composer.json

@@ -5,7 +5,7 @@
     "license": "MIT",
     "require": {
         "composer-runtime-api": "^2.2",
-        "php": "^8.2",
+        "php": "^8.1",
         "ext-zlib": "*",
         "psr/http-message": "^1.1|^2.0",
         "react/event-loop": "^1.5",