sum() public method

Get the sum of the given values.
public sum ( callable | string | null $callback = null ) : mixed
$callback callable | string | null
return mixed
Collection Class Documentation
Example #1
0
 public function testPipe()
 {
     $collection = new Collection([1, 2, 3]);
     $this->assertEquals(6, $collection->pipe(function ($collection) {
         return $collection->sum();
     }));
 }
Example #2
0
 public function testGettingSumFromEmptyCollection()
 {
     $c = new Collection();
     $this->assertEquals(0, $c->sum('foo'));
 }
Example #3
0
 public function totals($period, Carbon $from, Carbon $to = null)
 {
     switch ($period) {
         case 'week':
             $y_axis = DB::raw("DAY(created_at) as {$period}");
             break;
         case 'month':
             $y_axis = DB::raw("DAY(created_at) as {$period}");
             break;
         case 'year':
             $y_axis = DB::raw("MONTH(created_at) as {$period}");
             break;
         case 'day':
         default:
             $y_axis = DB::raw("HOUR(created_at) as {$period}");
             break;
     }
     $prd = $this->data->select([DB::raw('count(id) as `count`'), $y_axis, 'type'])->groupBy($period)->groupBy('type')->get();
     $colle = new Collection($prd);
     return ['in' => $colle->sum(function ($x) {
         return $x->type == 'in' ? $x->count : 0;
     }), 'out' => $colle->sum(function ($x) {
         return $x->type == 'out' ? $x->count : 0;
     })];
 }