php生成日历

最近工作中用到的一个并没有卵用的功能，根据开始日期和结束日期，生成日历数组

php的部分如下

function build_calendar($start,$end) {

  $start_month = (Int)date('m',strtotime($start));

  $start_year = (Int)date('Y',strtotime($start));

  $end_year = (Int)date('Y',strtotime($end));

  $end_month = (Int)date('m',strtotime($end));

  if ( $start_month == 1 ) {

    $month = 12;

    $year = $start_year - 1;

   }else{

    $month = $start_month - 1;

    $year = $start_year;

  }

  $results = [];

  while ( !($year == $end_year && $month == $end_month) ) {

    if ( $month == 12 ) {

    $year++;

    $month = 1;

    }else{

      $month++;

    }

    // 本月第一天的位置

    $firstDayOfMonth = mktime(0,0,0,$month,1,$year);

    // 获取本月天数

    $numberDays = date('t',$firstDayOfMonth);

    // 获取本月第一天

    $dateComponents = getdate($firstDayOfMonth);

    $dayOfWeek = $dateComponents['wday'];

    // 初始化天数计数器，从1号开始

    $n = 0;

    $result = [];

    $line = 0;

    while ($n < $numberDays) {

      // 7天一行，7天一到新增一行

      if ($dayOfWeek == 7) {

        $dayOfWeek = 0;

       }

      $result[$line][$dayOfWeek] = date('Y-m-d',strtotime('+ '.$n.'days',$firstDayOfMonth));

      if ( $dayOfWeek == 6 ) {

        $line++;

      }

      // 计数器

      $n++;

      $dayOfWeek++;

    }

    $showMonth = str_pad($month, 2, "0", STR_PAD_LEFT);

    $results[$year.'-'.$showMonth] = $result;

  }

  return $results;

}

传入开始日期及结束日期，生成月历如下

{

"2017-10": [

[

"2017-10-01",

"2017-10-02",

"2017-10-03",

"2017-10-04",

"2017-10-05",

"2017-10-06",

"2017-10-07"

],

[

"2017-10-08",

"2017-10-09",

"2017-10-10",

"2017-10-11",

"2017-10-12",

"2017-10-13",

"2017-10-14"

],

[

"2017-10-15",

"2017-10-16",

"2017-10-17",

"2017-10-18",

"2017-10-19",

"2017-10-20",

"2017-10-21"

],

[

"2017-10-22",

"2017-10-23",

"2017-10-24",

"2017-10-25",

"2017-10-26",

"2017-10-27",

"2017-10-28"

],

[

"2017-10-29",

"2017-10-30",

"2017-10-31"

]

],

"2017-11": [

{

"3": "2017-11-01",

"4": "2017-11-02",

"5": "2017-11-03",

"6": "2017-11-04"

},

[

"2017-11-05",

"2017-11-06",

"2017-11-07",

"2017-11-08",

"2017-11-09",

"2017-11-10",

"2017-11-11"

],

[

"2017-11-12",

"2017-11-13",

"2017-11-14",

"2017-11-15",

"2017-11-16",

"2017-11-17",

"2017-11-18"

],

[

"2017-11-19",

"2017-11-20",

"2017-11-21",

"2017-11-22",

"2017-11-23",

"2017-11-24",

"2017-11-25"

],

[

"2017-11-26",

"2017-11-27",

"2017-11-28",

"2017-11-29",

"2017-11-30"

]

]

}