PHP_CLI_SERVER_WORKERS has no effect even with --no-reload option

[alanfzf]

Laravel Version

11.43.2

PHP Version

8.4.3

Database Driver & Version

No response

Description

As the title says it seems like PHP_CLI_SERVER_WORKERS has no effect even when i start the server with the following command php artisan serve --no-reload --host=0.0.0.0

Steps To Reproduce

1. Set PHP_CLI_SERVER_WORKERS=5 env var
2. Start the development server with php artisan serve --no-reload --host=0.0.0.0
3. For e.g make a call to own internal api like this:

public function index(Request $request){
    $appUrl = env('APP_URL');
    // or with token what ever...
    $con =  Http::withHeaders([
        'Accept' => 'application/json',
        'Referer' => $appUrl,
        'Cookie' => request()->header('Cookie'),
        'X-CSRF-TOKEN' => csrf_token(),
    ])->baseUrl("$appUrl/api");
    $response = $con->get('/users/', []);
 
    // curl hangs with 30 sec timeout, as the api request cannot be processed in parallel

    return view('users.index', ['data'=>$response->object()]);
}

[crynobone]

@alanfzf What's your OS?

[alanfzf]

@alanfzf What's your OS?

I was able to test it briefly on macos 15.3 and arch-linux on the work, right now im at home and i spinned up a WSL Debian 12 machine, same result for the 3 operating systems.

EDIT: also worth mentioning that we are using nix flakes and direnv to set up the dev environment

Nix flake and flake.lock

{
description = "A multi-architecture flake for development environments";

inputs = {
  nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
  flake-utils.url = "github:numtide/flake-utils";
};

outputs =
  {
    self,
    nixpkgs,
    flake-utils,
    ...
  }@inputs:

  flake-utils.lib.eachSystem [ "x86_64-darwin" "aarch64-darwin" "x86_64-linux" "aarch64-linux" ] (
    system:
    let
      pkgs = import nixpkgs {
        inherit system;
        config.allowUnfree = true;
      };

      mkScript =
        name: text:
        let
          script = pkgs.writeShellScriptBin name text;
        in
        script;

      scripts = [
        (mkScript "php-debug-adapter" ''
          #!/bin/bash
          node ${pkgs.vscode-extensions.xdebug.php-debug}/share/vscode/extensions/xdebug.php-debug/out/phpDebug.js
        '')

        (mkScript "all-format" ''
          #!/bin/bash
          prettier . --check --write && blade-formatter --write "resources/**/*.blade.php" && php-cs-fixer fix --show-progress=dots
        '')

        (mkScript "lara-start" ''
          #!/bin/bash
          trap "echo 'killing php service...'; kill 0" SIGINT
          php artisan serve --no-reload --host=0.0.0.0  &
          php artisan queue:listen --verbose &
          pnpm run dev &
          wait
        '')
      ];

      phpWithXdebug = (
        pkgs.php84.buildEnv {
          extensions = (
            { enabled, all }:
            enabled
            ++ (with all; [
              xdebug
            ])
          );
          extraConfig = ''
            xdebug.mode=debug
            xdebug.start_with_request=yes
            xdebug.client_host=127.0.0.1
            xdebug.client_port=9003
            xdebug.log_level = 0
          '';
        }
      );

      devPackages = with nixpkgs; [
        # base stuff
        phpWithXdebug
        pkgs.nodejs_22
        pkgs.pnpm
        pkgs.curl
        pkgs.zip
        pkgs.unzip
        pkgs.pdftk
        # php packages
        pkgs.php84Packages.composer
        pkgs.php84Packages.php-cs-fixer
        # extensions
        pkgs.php84Extensions.intl
        pkgs.php84Extensions.bcmath
        pkgs.php84Extensions.curl
        pkgs.php84Extensions.mysqli
        pkgs.php84Extensions.xml
        pkgs.php84Extensions.zip
        pkgs.php84Extensions.soap
        pkgs.php84Extensions.mbstring
        pkgs.php84Extensions.gd
        pkgs.php84Extensions.ftp
        pkgs.php84Extensions.xdebug
        # development
        pkgs.intelephense
        pkgs.typescript-language-server
        pkgs.blade-formatter
        pkgs.nodePackages.prettier
        pkgs.vscode-extensions.xdebug.php-debug
      ];

      postShellHook = '''';
    in
    {
      devShells = {
        default = pkgs.mkShell {
          name = "control-finanssoreal";
          nativeBuildInputs = scripts;
          packages = devPackages;
          postShellHook = postShellHook;
        };
      };
    }
  );
}

{
  "nodes": {
    "flake-utils": {
      "inputs": {
        "systems": "systems"
      },
      "locked": {
        "lastModified": 1731533236,
        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
        "owner": "numtide",
        "repo": "flake-utils",
        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
        "type": "github"
      },
      "original": {
        "owner": "numtide",
        "repo": "flake-utils",
        "type": "github"
      }
    },
    "nixpkgs": {
      "locked": {
        "lastModified": 1739866667,
        "narHash": "sha256-EO1ygNKZlsAC9avfcwHkKGMsmipUk1Uc0TbrEZpkn64=",
        "owner": "nixos",
        "repo": "nixpkgs",
        "rev": "73cf49b8ad837ade2de76f87eb53fc85ed5d4680",
        "type": "github"
      },
      "original": {
        "owner": "nixos",
        "ref": "nixos-unstable",
        "repo": "nixpkgs",
        "type": "github"
      }
    },
    "root": {
      "inputs": {
        "flake-utils": "flake-utils",
        "nixpkgs": "nixpkgs"
      }
    },
    "systems": {
      "locked": {
        "lastModified": 1681028828,
        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
        "owner": "nix-systems",
        "repo": "default",
        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
        "type": "github"
      },
      "original": {
        "owner": "nix-systems",
        "repo": "default",
        "type": "github"
      }
    }
  },
  "root": "root",
  "version": 7
}