//統(tǒng)計七天內注冊用戶數量按天進行分組
$user = DB::table('users')->whereBetween('created_at',['2018-01-01','2018-01-07'])
 ->selectRaw('date(created_at) as date,count(*) as value')
 ->groupBy('date')->get();

#獲取的用戶分組數據
{
 "date": "2018-01-01", #日期
 "value": 199  #數量
{
 "date": "2018-01-02",
 "value": 298
},
{
 "date": "2018-01-03",
 "value": 1000
}
 
#在進行圖表統(tǒng)計的時候直接從數據庫取得數據有些日期可能是沒有的,就需要我們手動進行補全一些日期
#計算日期內天數
$stimestamp = strtotime($start_time);
$etimestamp = strtotime($end_time);
#計算日期段內有多少天
$days = ($etimestamp - $stimestamp) / 86400;
#保存每天日期
$date = array();
for($i = 0;$i  $days;$i++){
 $date[] = date('Y-m-d', $stimestamp + (86400 * $i));
}
#循環(huán)補全日期
foreach ($date as $key => $val){
 $data[$key] = [
 'date' => $val,
 'value' => 0
 ];
 foreach ($user as $item => $value){
 if($val == $value['date']){
  $data[$key] = $value;
 }
 }
}
return $data;

#統(tǒng)計一年內注冊用戶數量按月份進行分組
$user = DB::table('users')->whereBetween('created_at',['2018-01-01','2018-12-31'])
 ->selectRaw('DATE_FORMAT(created_at,"%Y-%m") as date,COUNT(*) as value')
 ->groupBy('date')->get();
#獲取的用戶分組數據
{
 "date": "2018-01", #月份
 "value": 1497  #數量
},
{
 "date": "2018-02",
 "value": 2354
},
{
 "date": "2018-03",
 "value": 4560
} 
#在進行圖表統(tǒng)計的時候直接從數據庫取得的數據有的月份可能是沒有的,不過月份比較少可直接寫死,同樣也需要補全
$year = date('Y',time());
#一年的月份
$month = [
 0 => $year.'-01',
 1 => $year.'-02',
 2 => $year.'-03',
 3 => $year.'-04',
 4 => $year.'-05',
 5 => $year.'-06',
 6 => $year.'-07',
 7 => $year.'-08',
 8 => $year.'-09',
 9 => $year.'-10',
 10 => $year.'-11',
 11 => $year.'-12',
];
#循環(huán)補全月份
foreach ($month as $key => $val){
 $data[$key] = [
 'date' => $val,
 'value' => 0
 ];
 foreach ($user as $item => $value){
 if($val == $value['date']){
  $data[$key] = $value;
 }
 }
}
return $data;

use Carbon\Carbon;
 
public function getNumber()
{
  $data = [];

  #今天數據
  $data['customer_today'] = Customer::where('customer_type', 1)->where('created_at', Carbon::today())->count();
  #昨天數據
  $data['customer_yesterday'] = Customer::where('customer_type', 1)->where('created_at', Carbon::yesterday())->count();

  // 本周數據
  $this_week = [Carbon::now()->startOfWeek(), Carbon::now()->endOfWeek()];
  $data['customer_this_week'] = Customer::where('customer_type', 1)->whereBetween('created_at', $this_week)->count();

  // 上周數據
  $last_week = [Carbon::now()->startOfWeek()->subWeek(), Carbon::now()->endOfWeek()->subWeek()];
  $data['customer_last_week'] = Customer::where('customer_type', 1)->whereBetween('created_at', $last_week)->count();

  // 本月數據
  $data['customer_this_month'] = Customer::where('customer_type', 1)->whereMonth('created_at', Carbon::now()->month)->count();

  // 上月數據
  $data['customer_last_month'] = Customer::where('customer_type', 1)->whereMonth('created_at', Carbon::now()->subMonth()->month)->count();

  // 本年數據
  $data['customer_this_year'] = Customer::where('customer_type', 1)->whereYear('created_at', Carbon::now()->year)->count();

  
  return $data;
}