HTTP Responses

ZealPHP wraps OpenSwoole's response with a clean API. Every method is coroutine-safe — no output buffering leaks across concurrent requests.

Method	Signature	What it does
`json()`	`json($data, $status=200)`	Sets Content-Type: application/json, encodes and ends response
`redirect()`	`redirect($url, $status=302)`	Sets Location header + status, no body
`header()`	`header($key, $value)`	Queues response header (sent on flush)
`cookie()`	`cookie($name, $value, ..., $samesite)`	Sets cookie with full attributes incl. SameSite
`status()`	`status(int $code)`	Sets HTTP status code
`stream()`	`stream(callable $fn)`	Flush headers immediately, stream body via $write() closure
`sse()`	`sse(callable $fn)`	Server-Sent Events — sets event-stream headers, $emit() closure
`end()`	`end(?string $data)`	Send final body and close connection

GET json() — returns JSON with status 200

$app->route('/demo/response/json', function() {
    return ['framework' => 'ZealPHP', 'async' => true, 'time' => time()];
    // Returning an array auto-sets Content-Type: application/json
});

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GET redirect() — 301 permanent redirect

$app->route('/demo/response/redirect-301', function($response) {
    $response->redirect('/routing', 301);
});

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GET header() — custom response headers

$app->route('/demo/response/headers', function($response) {
    $response->header('X-Framework',  'ZealPHP');
    $response->header('X-Async',      'true');
    $response->header('Cache-Control','no-store');
    return ['headers_set' => ['X-Framework', 'X-Async', 'Cache-Control']];
});

LIVE OUTPUT Click Run →

GET cookie() — SameSite cookie

$app->route('/demo/response/cookie', function($response) {
    // Full PHP 7.3+ signature including SameSite
    $response->cookie('session_demo', 'abc123', 0, '/', '', false, true, 'Strict');
    return ['cookie_set' => 'session_demo=abc123; SameSite=Strict; HttpOnly'];
});

Streaming responses — stream() and sse() are covered on the Streaming page. They send headers immediately and bypass the PSR-7 output buffer.