PHP取得上週、本週、上月、本月、本季、上季的程式碼

    echo date("Ymd",strtotime("now")), "\n";
    echo date("Ymd",strtotime("-1 week Monday")), "\n";
    echo date("Ymd",strtotime("-1 week Sunday")), "\n";
    echo date("Ymd",strtotime(" 0 week Monday")), "\n";
    echo date("Ymd",strtotime(" 0 week Sunday")), "\n";

    echo "*********第几个月:";
    echo date('n');
    echo "*********本周周几:";
    echo date("w");
    echo "*********本月天数:";
    echo date("t");
    echo "*********";

    echo '上周起始时间:';
    echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w") 1-7,date("Y"))),"\n";
    echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w") 7-7,date("Y"))),"\n";
    echo '本周起始时间:';
    echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w") 1,date("Y"))),"\n";
    echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w") 7,date("Y"))),"\n";

    echo '上月起始时间:';
    echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m")-1,1,date("Y"))),"\n";
    echo date("Y-m-d H:i:s",mktime(23,59,59,date("m") ,0,date("Y"))),"\n";
    echo '本月起始时间:';
    echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),1,date("Y"))),"\n";
    echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("t"),date("Y"))),"\n";

    $season = ceil((date('n'))/3);//当月是第几季度
    echo '本季度起始时间:';
    echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season*3-3 1,1,date('Y'))),"\n";
    echo date('Y-m-d H:i:s', mktime(23,59,59,$season*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'))),"\n";

    $season = ceil((date('n'))/3)-1;//上季度是第几季度
    echo '上季度起始时间:';
    echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season*3-3 1,1,date('Y'))),"\n";
    echo date('Y-m-d H:i:s', mktime(23,59,59,$season*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'))),"\n";
?>

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