Streaming: Generator yield (SSR)

A route handler that returns a \Generator streams every yield chunk to the browser the moment it produces it — the page renders progressively instead of waiting for the whole HTML to assemble. Click Run below; the chunks arrive in the dark panel.

How it's wired (route side)

$app->route('/stream/ssr', function () {
    return (function () {
        yield '<section><h2>Loading…</h2></section>';
        foreach (slow_data_source() as $row) {
            yield "<article>{$row}</article>";
        }
        yield '<footer>Done.</footer>';
    })();
});

Run it