<?
$ntime = date("H",time());

if($ntime == "09" or $ntime == "10" or $ntime == "11"){
echo "아침";
} else if($ntime == "12"){
echo "점심";
} else if($ntime == "13" or $ntime == "14" or $ntime == "15" or $ntime == "16" or $ntime == "17" or $ntime == "18" or $ntime == "19"){
echo "저녁";
} else if($ntime == "20" or $ntime == "21" or $ntime == "22" or $ntime == "23"){
echo "밤";
} else if($ntime == "00" or $ntime == "01" or $ntime == "02" or $ntime == "03" or $ntime == "04" or $ntime == "05"){
echo "새벽";
} else if($ntime == "06" or $ntime == "07" or $ntime == "08"){
echo "이른아침";
}
?>

뭐 대충 이런식일까요?? if 문 좀 다듬으면 될듯도 한데..
테스트는 안해봤고요.. 그냥 생각나는대로...

좋은 정보 감사합니다^^