How to get the number of days of the month and date array in php based on the year and month

The example in this article describes how PHP obtains the number of days in the current month and the date array based on the year and month. Share it with everyone for your reference, the details are as follows:

function get_day( $date )  
{
    $tem = explode('-' , $date); //切割日期 得到年份和月份
    $year = $tem['0'];
    $month = $tem['1'];
    if( in_array($month , array( 1 , 3 , 5 , 7 , 8 , 01 , 03 , 05 , 07 , 08 , 10 , 12)))
    {
      // $text = $year.'年的'.$month.'月有31天';
      $text = '31';
    }
    elseif( $month == 2 )
    {
      if ( $year%400 == 0 || ($year%4 == 0 && $year%100 !== 0) )    //判断是否是闰年
      {
        // $text = $year.'年的'.$month.'月有29天';
        $text = '29';
      }
      else{
        // $text = $year.'年的'.$month.'月有28天';
        $text = '28';
      }
    }
    else{
      // $text = $year.'年的'.$month.'月有30天';
      $text = '30';
    }
    return $text;
}
echo get_day('2016-8-1');

The operation result is: 31

Transformation, return date array:

/**
* 获取当月天数
* @param $date 
* @param $rtype 1天数 2具体日期数组
* @return 
*/
function get_day( $date ,$rtype = '1')  
{
    $tem = explode('-' , $date);    //切割日期 得到年份和月份
    $year = $tem['0'];
    $month = $tem['1'];
    if( in_array($month , array( 1 , 3 , 5 , 7 , 8 , 01 , 03 , 05 , 07 , 08 , 10 , 12)))
    {
      // $text = $year.'年的'.$month.'月有31天';
      $text = '31';
    }
    elseif( $month == 2 )
    {
      if ( $year%400 == 0 || ($year%4 == 0 && $year%100 !== 0) )    //判断是否是闰年
      {
        // $text = $year.'年的'.$month.'月有29天';
        $text = '29';
      }
      else{
        // $text = $year.'年的'.$month.'月有28天';
        $text = '28';
      }
    }
    else{
      // $text = $year.'年的'.$month.'月有30天';
      $text = '30';
    }
    if ($rtype == '2') {
      for ($i = 1; $i <= $text ; $i ++ ) {
        $r[] = $year."-".$month."-".$i;
      }
    } else {
      $r = $text;
    }
    return $r;
}
var_dump(get_day(&#39;2016-8-1&#39;,&#39;2&#39;));

The running results are as follows:

array(31) {
 [0]=>
 string(8) "2016-8-1"
 [1]=>
 string(8) "2016-8-2"
 [2]=>
 string(8) "2016-8-3"
 [3]=>
 string(8) "2016-8-4"
 [4]=>
 string(8) "2016-8-5"
 [5]=>
 string(8) "2016-8-6"
 [6]=>
 string(8) "2016-8-7"
 [7]=>
 string(8) "2016-8-8"
 [8]=>
 string(8) "2016-8-9"
 [9]=>
 string(9) "2016-8-10"
 [10]=>
 string(9) "2016-8-11"
 [11]=>
 string(9) "2016-8-12"
 [12]=>
 string(9) "2016-8-13"
 [13]=>
 string(9) "2016-8-14"
 [14]=>
 string(9) "2016-8-15"
 [15]=>
 string(9) "2016-8-16"
 [16]=>
 string(9) "2016-8-17"
 [17]=>
 string(9) "2016-8-18"
 [18]=>
 string(9) "2016-8-19"
 [19]=>
 string(9) "2016-8-20"
 [20]=>
 string(9) "2016-8-21"
 [21]=>
 string(9) "2016-8-22"
 [22]=>
 string(9) "2016-8-23"
 [23]=>
 string(9) "2016-8-24"
 [24]=>
 string(9) "2016-8-25"
 [25]=>
 string(9) "2016-8-26"
 [26]=>
 string(9) "2016-8-27"
 [27]=>
 string(9) "2016-8-28"
 [28]=>
 string(9) "2016-8-29"
 [29]=>
 string(9) "2016-8-30"
 [30]=>
 string(9) "2016-8-31"
}

The above is the content of the method of PHP getting the number of days and date array of the current month according to the year and month. More For more related content, please pay attention to the PHP Chinese website (www.php.cn)!