get iconos en lightirc

<?php
$nick = $_GET["getImage"];
if ($nick == "admin") {
header('Content-Disposition: Attachment;filename=/c/icons/admin.png');
header('Content-type: image/png');
}
elseif ($nick == "halfop") {
header('Content-Disposition: Attachment;filename=/c/icons/halfop.png');
header('Content-type: image/png');
}
elseif($nick == "operator") {
header('Content-Disposition: Attachment;filename=/c/icons/operator.png');
header('Content-type: image/png');
}
elseif($nick == "voice") {
header('Content-Disposition: Attachment;filename=/c/icons/voice.png');
header('Content-type: image/png');
}
elseif($nick == "owner") {
header('Content-Disposition: Attachment;filename=/c/icons/owner.png');
header('Content-type: image/png');
}
else {
header('Content-Disposition: Attachment;filename=/c/icons/troll.png');
header('Content-type: image/png');
}
?>