This is a simple ajax chat system with a very small footprint on web servers. webirc-client uses a IRC backend written in bash and uses telnet to communicate with IRC servers. With that being said, it's not secured by TLS or anything like that. This is in working condition!
Requirements:
PHP 5.2+
telnet (IRC backend)
Read-Write access for .webirc.log and .webirc.input (server side stuffs)
Installation:
~Download webirc-client
~Extract it to desired web server / htdocs directory
~Customize config.php / webirc.conf to your likings