php - 将缺失日期添加到数组

Question

我有以下数组:

Array ( [2010-10-30] => 1 [2010-11-11] => 1 [2010-11-13] => 11 )

我试图用第一个和最后一个元素之间所有缺失的日期来填充数组。我正在尝试使用以下但无处可去:

foreach($users_by_date as $key => $value){
    $real_next_day = date($key, time()+86400);
    $array_next_day = key(next($users_by_date));
    if($real_next_day != $array_next_day){
      $users_by_date[$real_next_day] = $value;
    }
}

Answer 1

DateTime、DateInterval 和 DatePeriod 类在这里真的很有帮助。

$begin=date_create('2010-10-30');
$end=date_create('2010-11-13');
$i = new DateInterval('P1D');
$period=new DatePeriod($begin,$i,$end);

foreach ($period as $d){
  $day=$d->format('Y-m-d');
  $usercount= isset($users_by_date[$day]) ? $users_by_date[$day] :0;
  echo "$day $usercount"; 
}