Request Flow, Includes, and Configuration

Keep each PHP file focused: bootstrap first, shared helpers next, route logic last.

Edit the panels below and press Run to preview. Nothing you type here is saved — refreshing the page restores the original starter code.

<main class="app-shell">
  <h1>Procedural PHP</h1>
  <p>Plan the request flow before writing features.</p>
</main>

body {
  font-family: system-ui, sans-serif;
  margin: 2rem;
}

console.log("Request flow lesson loaded");