PHP获取上周、本周、上月、本月、本季度、上季度时间方法大全

<?php

    echo date("Ymd",strtotime("now")), " ";

    echo date("Ymd",strtotime("-1 week Monday")), " ";

    echo date("Ymd",strtotime("-1 week Sunday")), " ";

    echo date("Ymd",strtotime("+0 week Monday")), " ";

    echo date("Ymd",strtotime("+0 week Sunday")), " ";

 

    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 '<br>上周起始时间:<br>';

    echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1-7,date("Y")))," ";

    echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7-7,date("Y")))," ";

    echo '<br>本周起始时间:<br>';

    echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1,date("Y")))," ";

    echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7,date("Y")))," ";

 

    echo '<br>上月起始时间:<br>';

    echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m")-1,1,date("Y")))," ";

    echo date("Y-m-d H:i:s",mktime(23,59,59,date("m") ,0,date("Y")))," ";

    echo '<br>本月起始时间:<br>';

    echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),1,date("Y")))," ";

    echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("t"),date("Y")))," ";

 

    $season = ceil((date('n'))/3);//当月是第几季度

    echo '<br>本季度起始时间:<br>';

    echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season*3-3+1,1,date('Y')))," ";

    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')))," ";

 

    $season = ceil((date('n'))/3)-1;//上季度是第几季度

    echo '<br>上季度起始时间:<br>';

    echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season*3-3+1,1,date('Y')))," ";

    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')))," ";