Mine

on *:TEXT:!setpkw*:#: {
  if ($nick isop $chan || $nick ishop $chan) {
    set %pkw NONE | msg $chan No world has been set! 
  }
  elseif ($nick isop $chan || $nick ishop $chan) && (!$2) { 
    set %pkw $2- | msg $chan The current pk world has been changed! Type !pk to see it! 
  }  
  elseif ($nick isvoice $chan || $nick isreg $chan) { 
    notice $nick Only Ops/Half-Ops can do that! 
  }
}
on *:TEXT:!delpkw:#: {
  if ($nick isop $chan || $nick ishop $chan) {
    set %pkw NONE | msg $chan All PK World records has been deleted! 
  }
}
on *:TEXT:!pkw:#: {
  if ($nick isreg $chan) { 
    notice $nick Sorry shit head. Your not voiced 
  }
  else { 
    notice $nick The current pk world for # is: %pkw 
  }
}