What are the advantages and disadvantages of using IRC networks and corresponding clients for chat functionality compared to Flash Chat?

Advantages of using IRC networks and corresponding clients for chat functionality include greater customization options, a larger user base, and the ability to connect to multiple servers. However, disadvantages may include a steeper learning curve for new users and potential security risks.

// Sample PHP code implementing IRC chat functionality using the php-irc library

require_once 'vendor/autoload.php';

use PhpIrc\IrcClient;

$irc = new IrcClient('irc.freenode.net', 6667, 'MyBot');
$irc->connect();

$irc->joinChannel('#mychannel');

$irc->sendMessage('#mychannel', 'Hello, world!');

$irc->disconnect();