Laravel - 在一个方法中返回多个值

Laravel - Return multiple values within one method

提问by Oliver Vincent Ledesma

Heres where I'm currently stuck at. I am doing multiple methods where I am doing the different queries to the same table:

这就是我目前卡在的地方。我正在执行多种方法，对同一个表执行不同的查询：

public function totalOfA()
{
    return $a = Stocks::where('user_id','=', $this->employee->id)
        ->where('category','=','a')
        ->pluck('qty')
        ->sum();
}

public function totalOfB()
{
    return $a = Stocks::where('user_id','=', $this->employee->id)
        ->where('category','=','a')
        ->pluck('qty')
        ->sum();
}

I'm trying to look for a way to sum that all up to just one function

我正在尝试寻找一种方法来将所有内容总结为一个功能

public function totalStocks()
{
    $stocks = Stocks::where('user_id','=', $this->employee->id)
        ->get();

    $a = $stocks::where('category', '=', 'a')
        ->pluck('qty')
        ->sum();

    $b = $stocks::where('category', '=', 'b')
        ->pluck('qty')
        ->sum();

    return $a and $b
}

So I can just call it from view as totalstocks()->a or totalstocks()->b something like that.

所以我可以从视图中调用它作为 totalstocks()->a 或 totalstocks()->b 类似的东西。

回答by iCoders

You cant call like that.you can create an aray or you can pass seperately to view

你不能那样调用。你可以创建一个数组，也可以单独传递查看

public function totalStocks()
{
    $stocks = Stocks::where('user_id','=', $this->employee->id)
        ->get();

    $a = $stocks::where('category', '=', 'a')
        ->pluck('qty')
        ->sum();

    $b = $stocks::where('category', '=', 'b')
        ->pluck('qty')
        ->sum();

    return view('home',['stocks'=> $stocks,'a'=>$a,'b'=>$b]);

}

Now you can access $a ,$b in your view

现在您可以在视图中访问 $a ,$b

 public function totalStocks()
    {

        $data['stocks'] = Stocks::where('user_id','=', $this->employee->id)
            ->get();

       $data['a'] = $stocks::where('category', '=', 'a')
            ->pluck('qty')
            ->sum();

       $data['b'] = $stocks::where('category', '=', 'b')
            ->pluck('qty')
            ->sum();

        return view('home',['data'=>$data]);

    }

so you can accessin view like {{$data['a']}}

所以你可以像这样访问视图 {{$data['a']}}

回答by HoangNK

Try this:

尝试这个：

 $x = array(
        'a' => $a,
        'b' => $b,
    );
return (object) $x

回答by Pubudu Jayawardana

Possible solution is that you define private/protected variables as aand bwithin the class and in the method totalStocks()you can set values to them.

可能的解决方案是您在类中定义私有/受保护变量，a并b在方法中totalStocks()为它们设置值。

So your function would look like this:

所以你的函数看起来像这样：

public function totalStocks()
{
    $stocks = Stocks::where('user_id','=', $this->employee->id)
        ->get();

    $this->a = $stocks::where('category', '=', 'a')
        ->pluck('qty')
        ->sum();

    $this->b = $stocks::where('category', '=', 'b')
        ->pluck('qty')
        ->sum();

    // Return optional
    return $this;
}

So you can access $this->aand $this->bas properties of the class whenever class is in use.

因此，无论何时使用类，您都可以访问$this->a和$this->b作为类的属性。

回答by Link.de

try this:

尝试这个：

function totalStocks() {
   $a = 1;
   $b = 2;

   return  [$a, $b];
}

list($valueA, $valueB) = totalStocks();
echo $valueA; //1
echo $valueB; //2