Updating Multiple columns of database with multiple text fields in Laravel - laravel

Question

I want to update three fields in a three column of my database. Each time i run this, the last field get updated into all fields. Someone please help. Thanks in advance.
public function updateResult(Request $request)
{
$id = $request->student_id;
if(count($request->mark) > 0)
{
foreach($request->mark as $item=>$v){
$data=array(
'mark'=>$request->mark[$item],
'grade'=>$request->grade[$item],
'student_id'=>$request->student_id[$item],
);
Result::where('student_id', $id)->update($data);
}
}
return Redirect()->back();
}

Answer 1

You have fixed id here $id = $request->student_id and everytime you update Result you are updating same row(s) again.
I think you should do this:
public function updateResult(Request $request)
{
// $id = $request->student_id;
// Note: The line above is no longer needed
if(count($request->mark) > 0){
foreach($request->mark as $item=>$v){
$data=array(
'mark'=>$request->mark[$item],
'grade'=>$request->grade[$item]
// Note: There is no need to include student_id here unless you actually intend to change the ID
);
Result::where('student_id', $request->student_id[$item])->update($data);
// Note: In the line above, I replaced $id with $request->student_id[$item] to update the specific student
}
}
return Redirect()->back();
}
Hope this helps you