Flash message

flash() method will help you create and get flash message. Is for temporary, once the message shown to client then immidiately remove from session.

The global flash() method is a object of Flash class.

Flash Class Definition

class Flash{
    public add(key: string, message: string): void
    public has(key: string): bool
    public get(key: string): string|mixed
    public clear(): void
}

Examples

$app->get('/test', function () {
    return flash()->add('error', 'You have some validation error.!!');
});

In twig template

{% if flash()->has('error') %}
    <div class="error">
        {{ flash()->get('error') }}
    </div>
{% endif %}