避免除以零错误 Laravel 框架
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Avoid The Divide by Zero Error Laravel Framework
提问by Phil Nind
I am trying to calculate some stats on my Laravel site...however when I execute the following code it is giving me a 'Divide By Zero Error'
我正在尝试在我的 Laravel 站点上计算一些统计数据……但是，当我执行以下代码时，它给了我一个“除以零错误”
I understand why because there are no records so the calculation is 0 divide 0
我明白为什么因为没有记录所以计算是 0 除以 0
Is there a way that if it eqauls zero to echo '0' rather than throw up that error
有没有办法，如果它等于零来回显“0”而不是抛出那个错误
Controlller
控制器
private function getAverageOddsForLastMonth()
{
$firstDayOfLastMonth = new Carbon('first day of last month');
$lastDayOfLastMonth = new Carbon('last day of last month');
$tipslastmonth = Tip::whereBetween('tip_date',
[
$firstDayOfLastMonth,
$lastDayOfLastMonth
]
)->count();
$sumOfTheOddsLastMonth = Tip::whereBetween('tip_date',
[
$firstDayOfLastMonth,
$lastDayOfLastMonth
]
)->sum('odds');
return ($sumOfTheOddsLastMonth / $tipslastmonth);
}
回答by Thomas Ruiz
Just add a simple condition:
只需添加一个简单的条件：
return $tipslastmonth == 0 ? 0 : ($sumOfTheOddsLastMonth / $tipslastmonth);
回答by Vinay Kaithwas
- As you know, This error occurs Because of 0 in your Variable Simply you do this
- 如您所知，发生此错误的原因是变量中的 0 只需执行此操作
if($tipslastmonth != 0)
$tipslastmonth = $sumOfTheOddsLastMonth / $tipslastmonth;
else
$tipslastmonth = 0;
- When 0 not occur else part will be executed work fine with my project
- 当 0 不发生时，其他部分将在我的项目中正常执行
