WP-Admin Notification Class

class-admin-message.php

<?php
/**
 * Creates Messages for WP Admin Screens
 *
 * @author gfargo
 */

class Admin_Message {

	/**
	 * Alert Message
	 */
	private $_message;

	/**
	 * Alert Class
	 */
	private $_class;

	public function __construct( $message, $class = 'notice notice-error' ) {
		$this->_message = $message;
		$this->_class = $class;

        add_action( 'admin_notices', array( $this, 'render' ) );
	}


	public function render() {
		printf( '<div class="%1$s"><p>%2$s</p></div>', $this->_class, $this->_message );
	}

}