PHP retrieves the start date and end date of the Week (month) of the current date (implementation code)

Code Copy codeThe Code is as follows: // obtain the start time and end time of the week of the specified date.
Function getWeekRange ($ date ){
$ Ret = array ();
$ Timestamp = strtotime ($ date );
$ W = strftime ('% U', $ timestamp );
$ Ret ['sdate'] = date ('Y-m-d 00:00:00 ', $ timestamp-($ W-1) * 86400 );
$ Ret ['update'] = date ('Y-m-d 23:59:59 ', $ timestamp + (7-$ w) * 86400 );
Return $ ret;
}

// Obtain the start date and end date of the month of the specified date.
Function getMonthRange ($ date ){
$ Ret = array ();
$ Timestamp = strtotime ($ date );
$ Mdays = date ('T', $ timestamp );
$ Ret ['sdate'] = date ('Y-M-1 00:00:00 ', $ timestamp );
$ Ret ['update'] = date ('Y-m-'. $ mdays. '23:59:59', $ timestamp );
Return $ ret;
}

// Application of the above two functions
Function getFilter ($ n ){
$ Ret = array ();
Switch ($ n ){
Case 1: // Yesterday
$ Ret ['sdate'] = date ('Y-m-d 00:00:00 ', strtotime ('-1 Day '));
$ Ret ['update'] = date ('Y-m-d 23:59:59 ', strtotime ('-1 Day '));
Break;
Case 2: // this week
$ Ret = getWeekRange (date ('Y-m-d '));
Break;
Case 3: // last week
$ StrDate = date ('Y-m-d', strtotime ('-1 week '));
$ Ret = getWeekRange ($ strDate );
Break;
Case 4: // last week
$ StrDate = date ('Y-m-d', strtotime ('-2 week '));
$ Ret = getWeekRange ($ strDate );
Break;
Case 5: // this month
$ Ret = getMonthRange (date ('Y-m-d '));
Break;
Case 6: // last month
$ StrDate = date ('Y-m-d', strtotime ('-1 month '));
$ Ret = getMonthRange ($ strDate );
Break;
}
Return $ ret;
}