Share 3 php get Calendar function _php Tips

The

Provides a date that gets the calendar list for the week of this date, and the key is the week mark

$month _date = ' 2015-09-25 ';
$start _time = strtotime ($month _date);
$start _week = Date (' W ', $start _time);
 
$total _month_day = date (' t ', $start _time);
 
$weeks _in_month = ceil ($start _week+ $total _month_day)/7);
$month _day_arr = [];
$start _month_day = 1;
      For ($i =0 $i < $weeks _in_month $i + +) {for ($j =0; $j <7; $j + +) {if ($i ==0 && $j >= $start _week) {
      $month _day_arr[$i] [$j] = $start _month_day;
    $start _month_day++;
    } elseif ($i = = 0) {$month _day_arr[$i] [$j] = ';
      else {$month _day_arr[$i] [$j] = $start _month_day;
    $start _month_day++;
    } if ($start _month_day > $total _month_day) {break;
}} echo "<pre>";
 
Print_r ($month _day_arr);
      Array ([0] => Array ([0] => [1] => [2] => 1 [3] => 2 [4] => 3
      [5] => 4 [6] => 5) [1] => Array ([0] => 6 [1] => 7 [2] => 8
[3] => 9 [4] => 10      [5] => [6] => [2] => Array ([0] => [1] => [2] =&gt ; [3] => [4] => [5] => [6] =>) [3] => Array ([0] =
    > [1] => [2] => [3] => [4] => [5] => [6] => 26
 ) [4] => Array ([0] => [1] => [2] => [3] => 30))

Gets the start date and end date of the month on which the specified date is located

/**
   * @param string $date
   * @param Boolean to True returns the start date, otherwise returns the end date
   * @return Array
   * @access Private
   * *
  Private Function Getmonthrange ($date, $returnFirstDay = True) {
    $timestamp = Strtotime ($date);
    if ($returnFirstDay) {
      $monthFirstDay = date (' Y-m-1 00:00:00 ', $timestamp);
      return $monthFirstDay;
    } else {
      $mdays = date (' t ', $timestamp);
      $monthLastDay = Date (' y-m-'. $mdays. ' 23:59:59 ', $timestamp);
      return $monthLastDay;
    }
  

Gets the date range for the current week, which is the date range from Monday to Sunday.

　　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 [' Edate ']=date (' y-m-d 23:59:59 ', $timestamp + (7-$w) *86400);
　　return $ret;
　　//author:zhxia gets the start date and end Date function Getmonthrange ($date) {$ret =array () of the month on which the specified date is located;
　　$timestamp =strtotime ($date);
　　$mdays =date (' t ', $timestamp);
　　$ret [' Sdate ']=date (' y-m-1 00:00:00 ', $timestamp); $ret [' Edate ']=date (' y-m-'. $mdays.
　　23:59:59 ', $timestamp);
　　return $ret;
　　//author:zhxia the application function GetFilter ($n) {$ret =array () of the above two functions;
　　Switch ($n) {case 1://yesterday $ret [' Sdate ']=date (' y-m-d 00:00:00 ', Strtotime ('-1 day '));
　　$ret [' Edate ']=date (' y-m-d 23:59:59 ', Strtotime ('-1 day '));
　　Break
　　Case 2://this week $ret =getweekrange (' y-m-d ');
　　Break
　　Case 3://One weeks $strDate =date (' y-m-d ', Strtotime ('-1 week '));
　　$ret =getweekrange ($strDate);
　　Break
　　Case 4://The week before $strDate =date (' y-m-d ', Strtotime ('-2 week ')); $ret =gEtweekrange ($strDate);
　　Break
　　Case 5://$ret =getmonthrange (Date (' y-m-d ') this month);
　　Break
　　Case 6://last month $strDate =date (' y-m-d ', Strtotime ('-1 month '));
　　$ret =getmonthrange ($strDate);
　　Break
　　return $ret; }