To a specified date, month date, and date of the week.

To the specified date, Month day, get the start date of the week (example: 2016.6.15  get 2016.6.13-2016.6.19) public
	function   Get_oneweek ($one _date) {
		//$first =1 indicates that the starting date of Monday per week is 0 for each Sunday as the start date
		$first =1;
		Gets the day ordinal of the current week Sunday is 0 weeks a to Saturday is 1-6
		$w =date (' W ', Strtotime ($one _date));
		Gets the start date of the week, if $w is 0, then represents Sunday, minus 6 days
		$week _start=date (' y-m-d ', Strtotime ("$one _date-". $w? $w-$first: 6). ' Days ');
		echo $week _start;
		This week's end date
		$week _end=date (' y-m-d ', Strtotime ("$week _start +6 Days"));
		echo $week _end;

		$One _week = Array ($week _start, $week _end);
		return $One _week;
	}