Add simple Flash Messages and Flash Keys to PHP Fat-Free Framework

1.0.2 2020-12-13 08:43 UTC

This package is auto-updated.

Last update: 2021-02-13 09:00:45 UTC


This is a little plugin to add simple Flash Messages and Flash Keys for PHP Fat-Free-Framework, version 3.x


  • Method 1: use composer composer require ikkez/f3-flash

  • Method 2: copy the flash.php file into your F3 lib/ directory or another directory that is known to the AUTOLOADER


To add a message (or multiple) that should only be displayed once in your template on the next request, just do:

\Flash::instance()->addMessage('You did that wrong.', 'danger');
// or 
\Flash::instance()->addMessage('It worked!', 'success');

And to display that in your templates do:

<!-- bootstrap style-->
<F3:repeat group="{{ \Flash::instance()->getMessages() }}" value="{{ @msg }}">
<div class="alert alert-{{ @msg.status }} alert-dismissable">
  <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
  {{ @msg.text | esc }}

That's it.

If you need, you could also add simple keys:

$flash = \Flash::instance()
$f3->set('FLASH', $flash);
$flash->setKey('highlight','bg-success'); // with value
$flash->setKey('show-hint'); // without returns just TRUE
$flash->setKey('error','Catastrophic error occured! ');

for use cases like:

<div class="box {{ @FLASH->getKey('highlight') }}">
  <F3:check if="{{ @FLASH->getKey('show-hint') }}">
  <p>It's new !!!</p>
<F3:check if="{{ @@FLASH && @FLASH->hasKey('error') }}">
    <p>{{ @FLASH->getKey('error') }}</p>


You are allowed to use this plugin under the terms of the GNU General Public License version 3 or later.

Copyright (C) 2017 Christian Knuth [ikkez]