danielbitzer

This is a very simple WordPress plugin for creating frontend notices server side or client side. There are 4 notice types by default success, error, warning, general or you can create custom notice types. Server side notices are stored in the session until displayed.
This plugin hopes to one day solve the problem of complex WordPress sites with multiple plugins all having their own Notices that all require styling.
But for now, the Notices API is useful tool for developers creating custom functionality in their theme.
Server Side Usage
<pre><code><?php
 WP_Notices::success( $title, $message, $timer, $priority ); 
 WP_Notices::warning( 'Login Failed', 'You have entered an incorrect Username or password, please try again.'); 
 WP_Notices::error( $title, $message, $timer, $priority ); 
 WP_Notices::general( $title, $message, $timer, $priority ); 
 WP_Notices::custom( $type, $title, $message, $timer, $priority );
?>
</code></pre>
Client Side Usage
<pre><code>jQuery(document).ready(function($){

 $.WP_Notices.success( title,message, scroll_to, timer, callback );
 $.WP_Notices.error( title, message, scroll_to, timer, callback );
 $.WP_Notices.general( title, message, scroll_to, timer, callback );
 $.WP_Notices.warning( title, message, scroll_to, timer, callback );

 // Custom type
 $.WP_Notices.render_notice( type, title, message, scroll_to, timer, callback );

 // Using the callback parameter
 $.WP_Notices.warning( 'Form Error', 'Invalid form input.', false, 3000, function( $notice ) {
 console.log( $notice );
 });

});
</code></pre>
Options
<pre><code>add_filter( 'notice_api_options', 'customize_notice_options' );

function customize_notice_options( $options )
{
 $options = array(
 'prepend_selector' => '#content',
 'container_class' => 'notices-container',
 'before_title' => '',
 'after_title' => ': ',
 'scrolling_speed' => 500,
 );
 return $options;
}
</code></pre>

Notices API

The simple Notices API currently missing in WordPress.

Jonathan Desrosiers

Linchpin

Aaron Ware

Maxwell Morgan

Brian Fischer

Nate Allen

Courier Notices is a powerful WordPress plugin that allows you to create and display custom notices, alerts, and modals throughout your website. Perfect for announcements, promotions, warnings, or any important information you want to share with your visitors.
Key Features:
<ul>
<li>Easy Customization – Customize colors and icons with no coding required</li>
<li>Multiple Notice Types – Create different types of notices (Primary, Success, Alert, Warning, Feedback, Info)</li>
<li>Flexible Placement – Display notices in header, footer, as modals, or anywhere using CSS selectors</li>
<li>Dismissible Options – Choose whether notices can be dismissed by users</li>
<li>Modal Support – Create full-screen overlay popup notices</li>
<li>AJAX Loading – Compatible with caching plugins and CDNs</li>
<li>Developer Friendly – REST API endpoints and hooks for custom development</li>
</ul>
Perfect for: 
* Website announcements and updates 
* Promotional campaigns and special offers 
* Important warnings or maintenance notices 
* User feedback and success messages 
* Emergency alerts and notifications
Notice Types Include: 
* Primary – General information (#039ad6) 
* Success – Positive confirmations (#04a84e) 
* Alert – Important warnings (#f97600) 
* Warning – Critical alerts (#ea3118) 
* Feedback – Form responses (#8839d3) 
* Info – General information (#878787)
Placement Options: 
* Header – Displays at the top of the page 
* Footer – Fixed position at the bottom 
* Modal – Full-screen overlay popup 
* Custom – Use CSS selectors for specific placement
<h3>Shortcodes</h3>
Note: Shortcodes are deprecated in favor of blocks in the upcoming version 2.0
<pre><code>[courier_notice id="1"]
</code></pre>
Displays a Courier notice based on the Courier post ID, displays a flag to call out the notice as well.
Parameters:
<ul>
<li><code>id</code> – The ID of the notice to display</li>
</ul>

Courier Notices

Add dismissible and non-dismissible notices throughout your WordPress website with customizable colors, icons, and placement options.

Notices API vs Courier Notices