Mine

on *:text:!setworld*:#:{
  if ($nick isop $chan || $nick ishop $chan)
  set %World $2
  msg $chan The pcw has been updated type !world or pcw
}

on *:text:!world:#:{
if ($nick isop $chan || $nick ishop $chan || $nick isvoice $chan)
  notice $nick The world for $chan is %world
}


on *:text:!pcw:#:{
if ($nick isop $chan || $nick ishop $chan || $nick isvoice $chan)
  notice $nick The world for $chan is %world
}