grpc1.45.2/examples/php/echo/composer.json

{
  "name": "grpc-php/echo-example",
  "require": {
    "grpc/grpc": "^v1.30.0",
    "google/protobuf": "^3.12.2"
  },
  "autoload": {
    "psr-4": {
      "": "./"
    }
  }
}