Paper's Program Note

今日の日付を出す

$date = new DateTime('now');
echo $date->format('Y年m月d日 H時i分s秒');

もしくは単に

echo date("Y/m/d H:i:s");

n日後の日付と曜日を返す関数

function get_date_and_week($n){
    $weekday = array( "日", "月", "火", "水", "木", "金", "土" );
    $date = new DateTime(date('Y-m-d'));
    $date->modify('+'.$n.'day');
    return $date->format('Y-m-d') .'　'.$weekday[$date->format('w')]."曜日";
}