satackey/openapi-generator-php81

docker run --rm -it -v $PWD:/app -w /app openapitools/openapi-generator-cli:latest generate -i ./openapi.yml -o ./ -g php
docker run --rm -it -v $PWD:/app -w /app composer install
docker run --rm -it -v $PWD:/app -w /app php:8.1 php index.php