Console Debug Bundle

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Console Debug Bundle — Production-safe browser console debugging with cdbg(), similar in spirit to Symfony's dd() but non-blocking: it collects file, line, and variable data server-side and injects a <script> that prints grouped console.log() output for authorized users only. Tested on Symfony 7.4, 8.0, and 8.1 (also compatible with Symfony 6.x and 7.0–7.3) · PHP 8.1+ (Symfony 8.x requires PHP 8.4+).

Features

• cdbg() helper — Drop-in debug calls anywhere in PHP; execution continues (no dump-and-die).
• Role-gated — Only authenticated users with configured roles see output, even in production.
• Rich context — Captures caller file, line, optional label, and normalized variable payloads.
• HTML injection — Appends a JSON payload and runner script before </body> on HTML responses.
• Custom gate service — Replace or extend authorization with route/query-param logic.

Installation

composer require nowo-tech/console-debug-bundle

With Symfony Flex, the recipe registers the bundle and adds config. Without Flex, see docs/INSTALLATION.md.

Manual registration in config/bundles.php:

return [
  // ...
  Nowo\ConsoleDebugBundle\NowoConsoleDebugBundle::class => ['all' => true],
];

Grant a debug role to trusted users:

security:
  role_hierarchy:
    ROLE_CONSOLE_DEBUG: ROLE_USER

Configuration

nowo_console_debug:
  enabled: true
  roles:
    - ROLE_CONSOLE_DEBUG
  console_method: log
  label_prefix: '[cdbg]'
  shorten_paths: true
  query_param: console_debug
  # gate_service: App\ConsoleDebug\AppConsoleDebugGate

Usage

use function Nowo\ConsoleDebugBundle\cdbg;

public function show(Request $request): Response
{
    cdbg('items snapshot', $items, $request->query->all());

    return $this->render('page.html.twig', ['items' => $items]);
}

Open DevTools → Console on the rendered HTML page. Each cdbg() call appears as an expanded group with file, line, and values.

Twig (requires twig/twig)

Same behaviour as Symfony's native dump, but output goes to the browser console:

{# full Twig context (macros/templates excluded), like {% dump %} #}
{% cdbg %}

{# one or more variables, like {{ dump(user) }} #}
{{ cdbg(user) }}
{% cdbg user, items %}

When called empty, the label is twig context and the template name/line is used as the source location.

Documentation

• Installation
• Configuration
• Usage
• Performance
• Contributing
• Changelog
• Upgrading
• Release
• Security
• Engram
• Spec-driven development
• GitHub Spec Kit

Additional documentation

• Demo (FrankenPHP)

Requirements

• PHP >=8.1 (<8.6); Symfony 8.0 and 8.1 require PHP 8.4+
• Symfony 7.4, 8.0, or 8.1 (minimum supported minors; also works on Symfony 6.x and 7.0–7.3 via composer.json constraints)
• symfony/security-bundle (or equivalent) in your application for role-based gates

Development

make up
make install
make test
make cs-check
make phpstan
make release-check

Demo

• demo/symfony7 — Symfony 7.4, host port 8010 by default (PORT in .env)
• demo/symfony8 — Symfony 8.1 (PHP 8.4+), host port 8011 by default

Each demo runs FrankenPHP + Caddy in Docker. Login as debugger / debug and visit /debug to see cdbg() in the browser console. See docs/DEMO-FRANKENPHP.md.

Global demo commands: make -C demo help (e.g. make -C demo up-symfony8).

Tests and coverage

• Tests: PHPUnit (PHP)
• PHP: 100%

License and author

MIT · Nowo.tech · Héctor Franco Aceituno