Guides

Task-focused guides: build something, move over from PHP or Clojure, and test, debug, tune, and ship your code.

Build a Web App

An end-to-end tutorial: build a guestbook web app in Phel from an empty folder, with routing, HTML rendering, and request handling.

4 min read

What transfers from Clojure to Phel, what differs, and what Phel adds, with a side-by-side form mapping

4 min read

Side-by-side PHP and Phel for the same task: variables, functions, collections, strings, control flow, loops, and interop

5 min read

Runnable Phel recipes grouped by task: collections, strings, files, JSON, HTTP, HTML, dates, CLI tools, errors, and validation.

4 min read

Write tests with deftest, is, mocks, and property-based specs, then run them with phel test.

4 min read

Debug Phel code step by step: dbg, tap>, trace, stack traces, REPL breakpoints, Xdebug, PHP dump tools, compiled PHP, and profiling.

5 min read

Speed up phel test and phel run with CLI opcache, the compiled-code cache, optimization levels, profiling, and type tags.

4 min read

Deploy Phel apps on plain PHP-FPM or keep namespaces warm across requests with FrankenPHP and RoadRunner worker runtimes.

4 min read