在 [php] 中的 foreach 循环中求和值

Question

I want to sum tot_Price and unit_Price respectively so that I can analyze the average of these two attributes.

<tr>
    <td>{{ $X_land->house_Type }}</td>
    <td class="address">{{ $X_land->the_Location }}</td>
    <td>{{ $X_land->tot_Price }}</td>
    <td>{{ $X_land->tran_Area }}</td>
    <td>{{ $X_land->unit_Price }}</td>
    <td><button id="opener<?php echo $opencount?>">詳細資訊</button></td>
</tr>

How should I do this?
Thanks.

Answer 1

You could add sum variable for both tot_Price and unit_Price and add in foreach loop

<?php $sum_tot_Price = 0 ?>
<?php $sum_unit_Price = 0 ?>
@foreach ($yourData as X_land)
<tr>
    <td>{{ $X_land->house_Type }}</td>
    <td class="address">{{ $X_land->the_Location }}</td>
    <td>{{ $X_land->tot_Price }}</td>
    <td>{{ $X_land->tran_Area }}</td>
    <td>{{ $X_land->unit_Price }}</td>
    <td><button id="opener<?php echo $opencount?>">詳細資訊</button></td>
</tr>
<?php $sum_tot_Price += $X_land->tot_Price ?>
<?php $sum_unit_Price += $X_land->unit_Price ?>
@endforeach

<tr>
    <td>Sum tot_Price {{ $sum_tot_Price}}</td>
    <td>Sum unit_Price {{ $sum_unit_Price}}</td>
</tr>

Answer 2

Assume:

@foreach($lands as $X_land)
<tr>
    <td>{{ $X_land->house_Type }}</td>
    <td class="address">{{ $X_land->the_Location }}</td>
    <td>{{ $X_land->tot_Price }}</td>
    <td>{{ $X_land->tran_Area }}</td>
    <td>{{ $X_land->unit_Price }}</td>
    <td><button id="opener<?php echo $opencount?>">詳細資訊</button></td>
</tr>
@endforeach

You can get total like this:

{{$lands->sum('tot_Price')}}
{{$lands->sum('unit_Price')}}

Or you can get average:

{{$lands->avg('tot_Price')}}
{{$lands->avg('unit_Price')}}

Answer 3

To be very simple,

You need to focus on the @foreach loop first,
eg @foreach($people as $person)

and there is the salary which you can access in foreach , Through $person->salary

If you want to calculate the sum of salaries then use a simple sum like this,

$people->sum('salary') , Remember not use $person

In your case
{{$lands->sum('tot_Price')}}
{{$lands->sum('unit_Price')}}