<?php
require 'protoirc.php';
 
$irc = new ProtoIRC('NickName@hostname:6667/channel');
 
$irc->in('/^:(.*)!~.* PRIVMSG (.*) :!echo (.*)/', function ($irc, $nick, $channel, $args) {
  // Arguments are self-documenting
  $irc->send($channel, "Echoing '{$args}' for you {$nick}", 'green');
});

// Or use the builtin msg shortcut
$irc->msg('/^!echo (.*)/', function ($irc, $nick, $channel, $args) {
  // Arguments are self-documenting
  $irc->send($channel, "Echoing '{$args}' for you {$nick}", 'green');
});
 
$irc->go();

<?php
require 'protoirc.php';

ProtoIRC('NickName@hostname:6667/channel')
  ->stdin('/(.*)/', function ($irc, $text) { $irc->send($irc->channels, $text); })
  ->msg('/^!echo (.*)/', function ($irc, $nick, $channel, $args) { $irc->send($channel, "Echoing {$args}"); })
  ->go();

<?php
$irc = new ProtoIRC('nickname@hostname:port/channel1,channel2', function ($irc) {
  // Optional connect function
});
 
// Useful variables
$irc->nick;
$irc->last; // Last message destination
$irc->channels; // Currently joined channels
 
// Send a message through the IRC connection
$irc->send('RAW MESSAGE');
$irc->irccmd('args'); // eg. $irc->join('#channel');
$irc->send('#destination', 'message');
$irc->send('#destination', 'message', 'color');

// Embedding Colors
$irc->send('#destination', "{$irc->yellow}Yellow!{$irc->default}");
$irc->stdout("{$irc->ansi->yellow}Yellow!{$irc->ansi->default}");
 
// Echo to the terminal
$irc->stdout('message');
$irc->stdout('message', 'color');
 
// Bind a regex to a function, on either stdin, in, out, or msg
$irc->stdin/in/out/msg('regex', function ($irc, $first_match, $second_match etc) {
  // Runs if the regex matches

  // Run stuff asynchronously
  $irc->async(function ($irc) use ($first_match, $second_match) {
          sleep(5);
          $irc->send('#channel', 'This will print after 5 seconds');
  });

  $irc->send('#channel', 'This will print before the above statement');

  // return false in 'out' callback to stop message being sent
});
 
// Bind a timer
$irc->timer(60, function ($irc) {
  // Runs every minute
  $irc->send($irc->channels, 'Alert all channels of something');
});
 
// User defined callbacks (this one is built in now)
$irc->in('/^:(.*)!~.* PRIVMSG (.*) :!(.*)/', function ($irc, $nick, $channel, $args) {
  $irc->msg($args, $nick, $channel); // Calls 'msg' callback, defined below
});
 
$irc->msg('/^echo (.*)/', function ($irc, $nick, $channel, $line) {
  $irc->send($irc->last, $line);
});

// Anything else here is just a shortcut for the send command
$irc->notice('#Channel :blah');
$irc->privmsg('#Channel :blah');

// Fork/Join
$child = $irc->async(function ($irc) {
  // run some asynchronous stuff
  return array('some', 'simple', 'data');
});

$output = $irc->wait($child); // $output contains above array

// Non-blocking version, read only if data is there
// $output will be false if no data was returned yet
$output = $irc->read($child);