在Laravel图表上显示2个小数点

Question

我想为我在控制器中声明的每个变量显示2个小数点

private $dailyCapital=0;
private $dailySale=0;
private $dailyProfit;

所以我尝试在每个$this前面加双倍>

(double)$this->dailySale += (double)$sale->price;
(double)$this->dailyCapital += (double)($item->buying_price * $sale->quantity);
(double)$this->dailyProfit = (double)$this->dailySale - (double)$this->dailyCapital;
[发送给view后，

->dataset('Sales by Day', 'doughnut', [$this->dailyCapital, $this->dailySale, $this->dailyProfit])
所有三个都不返回小数点后两位。

我想为我在控制器private $ dailyCapital = 0中声明的每个变量显示2个小数点；私人$ dailySale = 0;私人$ dailyProfit;因此，我尝试在...

Answer 1

您应使用number_format()：