PHP Shell is a shell wrapped in a PHP script. It's a tool you can use to execute arbiritary shell-commands or browse the filesystem on your remote Web server. This replaces, to a degree, a normal telnet-connection. You can use it for administration and maintenance of your Web site using commands like ps, free, du, df, and more.
psyced is a distributed chat and messaging system based on the Protocol for SYnchronous Conferencing. PSYC is multicast and routed between servers and clients in a scalable and efficient way, but users can also comfortably use IRC clients, telnet, Web chat, WAP, or Jabber to enter the network. psyced also communicates with the network of Jabber/XMPP servers and hosts programmable chat rooms for all of these technologies at once. It also provides gateways to several IRC networks, but unlike IRC, everyone can run a server and be an equal member of the PSYC network. It supports PSYC, XMPP, IRC, TELNET, HTTP, Applet, SMTP, WAP, XML, RSS, and TLS.
Wapsh allows users to login to a Unix workstation using a WAP-capable mobile phone. Features include shortcuts (to save phone typing), input of control and other special characters, command history, and searching and scrolling through long shell output. Wapsh automatically adapts to the main WAP browsers (UP and Nokia), and uses configuration files to further tailor the system for specific phones. A corresponding HTML (Web) interface is also included.
PSHAW is a pseudo command prompt for accessing a machine remotely using only a Web browser. It cannot run interactive programs. It can only run programs that run, spit out text (or not), and then quit. There is a handy drop-down box of previously run commands. The page never reloads thanks to AJAX.
PHPsh allows you to have shell commands run on your behalf by Web servers that serve PHP pages, and solves these issues and more. It is a simplified version of the shell that allows you to execute arbitrary commands remotely through PHP. It is a handy way to run simple commands and maintain a history of executed commands, and a helpful environment that allows you to browse the filesystem and fetch or upload files.