This is a VIM plugin to enable php debuging with Xdebug, to enable python debugging with Komodo-PythonRemoteDebugging-Client, which originates from http://www.vim.org/scripts/script.php?script_id=1152. But most of the code, especially the debugger backend has been rewritten. Generally speaking, this is a plugin to make VIM working as a DBGP server, so that VIM can talk with DBGP clients like Xdebu