PHP Twitch Chat Client

twitch-chat.php

#!/usr/bin/env php
<?php error_reporting(E_ALL); set_time_limit(0);

if (php_sapi_name() !== "cli" || $argc < 4) {
	echo "Usage: php ", $argv[0], " [nickname] [password] [#channel]";
	exit(1);
}

$host = "irc.twitch.tv";
$ip = gethostbyname($host);
$port = 6667;
$regex = "/:(.*)\!(.*)\@(.*)\.tmi\.twitch\.tv PRIVMSG #(.*) :(.*)/s";

$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP) or exit(socket_strerror(socket_last_error()));
socket_connect($socket, $ip, $port) or exit(socket_strerror(socket_last_error()));

send($socket, "PASS {$argv[2]}\n");
send($socket, "NICK {$argv[1]}\n");
send($socket, "JOIN {$argv[3]}\n");

echo PHP_EOL;

while ($buffer = socket_read($socket, 1024)) {
	if (empty($buffer)) {
		break;
	}

	if (preg_match($regex, $buffer)) {
		preg_match_all($regex, $buffer, $matches);

		if (strtoupper(substr(PHP_OS, 0, 3)) !== "WIN") {
			echo "\033[0;36m", $matches[1][0], "\033[37m: ", $matches[5][0];//, PHP_EOL;
		} else {
			echo $matches[1][0], ": ", $matches[5][0];//, PHP_EOL;
		}

		echo "--------------------------------------------------------------------------------", PHP_EOL;
	}

	if ($buffer === "PING") {
		send($socket, "PONG\n");
	}
}

socket_close($socket);

function send ($socket, $buffer) {
	socket_write($socket, $buffer, strlen($buffer)) or exit(socket_strerror(socket_last_error()));
}