How to get sum of array in foreach in laravel 6 - arrays

Question

from my controller sum is not working
public function show($id)
{
$workers = DB::table('workers')
->select('wrk_id','f_name','m_name','l_name')
;
$attendance = DB::table('attendance')->where('payroll_daily_id', $id)
->select('attendance.*','f_name','l_name','m_name',DB::raw('SUM(reg_hour)as tots'))
->rightjoinSub($workers,'worker', function($join){
$join->on('attendance.wrk_id','=','worker.wrk_id');
})
->groupBy('payroll_attn_id')
->get();
foreach($attendance as $key){
$fetch[$key->wrk_id]['wrk_id'] = $key->wrk_id;
$fetch[$key->wrk_id]['f_name'] = $key->f_name;
$fetch[$key->wrk_id]['l_name'] = $key->l_name;
$fetch[$key->wrk_id]['m_name'] = $key->m_name;
$fetch['total_work_hours'] = $key->tots;
$fetch[$key->wrk_id]['date'][$key->date]['work_hours'] = $key->reg_hour;
}
return $fetch;
}
this is the result total_work_hours display only 8 instead of 56
2: {wrk_id: 2, f_name: "John", l_name: "Doe", m_name: null,…}
date: {2020-09-27: {work_hours: 8}, 2020-09-28: {work_hours: 8}, 2020-09-29: {work_hours: 8},…}
2020-09-27: {work_hours: 8}------------------
2020-09-28: {work_hours: 8}------------------
2020-09-29: {work_hours: 8}------------------
2020-09-30: {work_hours: 8}------------------ TOTAL OF THIS IS 56
2020-10-01: {work_hours: 8}------------------
2020-10-02: {work_hours: 8}------------------
2020-10-03: {work_hours: 8}-----------------
f_name: "John"
l_name: "Doe"
m_name: null
wrk_id: 2
total_work_hours: "8" <------------- 56 is the total off work_hours from array

Answer 1

try this
$fetch = [];
foreach($attendance as $key){
if(!isset($fetch[$key->wrk_id]['total_work_hours'])){
$fetch[$key->wrk_id]['total_work_hours'] = 0;
}
$fetch[$key->wrk_id]['wrk_id'] = $key->wrk_id;
$fetch[$key->wrk_id]['f_name'] = $key->f_name;
$fetch[$key->wrk_id]['l_name'] = $key->l_name;
$fetch[$key->wrk_id]['m_name'] = $key->m_name;
$fetch['s'] = $key->tots;
$fetch[$key->wrk_id]['date'][$key->date]['work_hours'] = $key->reg_hour;
$fetch[$key->wrk_id]['total_work_hours'] += $key->reg_hour;
}
return $fetch;

Answer 2

Use foreach like this:
foreach($attendance as $key){
if(empty($fetch[$key->wrk_id]['total_work_hours'])){
$fetch[$key->wrk_id]['total_work_hours'] = 0;
}
$fetch[$key->wrk_id]['wrk_id'] = $key->wrk_id;
$fetch[$key->wrk_id]['f_name'] = $key->f_name;
$fetch[$key->wrk_id]['l_name'] = $key->l_name;
$fetch[$key->wrk_id]['m_name'] = $key->m_name;
$fetch['s'] = $key->tots;
$fetch[$key->wrk_id]['total_work_hours'] += $key->reg_hour;
}