Developing

vendor/bin/jumbo dev

That serves the site on http://localhost:8000 with PHP's built-in server, rendering each page as it's asked for. Pick another address with --host and --port:

vendor/bin/jumbo dev --host=0.0.0.0 --port=3000

Live reload#

Open pages reload when any file in the project changes, skipping vendor/, node_modules/ and dist/. Turn it off with --no-reload.

The dev server runs four PHP workers, so the reload checks never hold up a page. Set PHP_CLI_SERVER_WORKERS to change that.

Errors#

An uncaught exception in development shows the error, the stack trace and the code around it, and the page still reloads once you fix it.

In production, Jumbo logs the error and renders pages/500.php with the exception as $error, or a plain "Internal Server Error" without one. Set DUMBO_ENV=production to see what visitors get. To handle errors yourself, call $site->app->onError() after creating the site.

Listing routes#

vendor/bin/jumbo routes

  /                            prerendered            pages/index.php
  /blog/{slug}                 prerendered            pages/blog/[slug].php
  /search                      on demand              pages/search.php
  /contact                     prerendered + actions  pages/contact.php
  /old                         redirect (301)         /new

Each page shows how it's rendered: built ahead of time, on demand by the server, or with actions that need the server for forms.