How to update json column value in Laravel 9? - json

Question

How to update json column value in Laravel. I have this column name requirements. I want to update the requirement value. I already use casts in my model fyi.
This is how it looks in my database
[
{
"requirement":"Ea et ut quis quia r"
},
{
"requirement":"Enim maxime ad eos a"
}
]
$request->addMoreInputFields is the dynamic field
public function update(Request $request, $id)
{
$request->validate([
'image' => 'nullable',
'addMoreInputFields.*.requirement' => 'required'
]);
$photo = $request->old_photo;
$form = Form::find($id);
if ($request->hasfile('photocard')) {
unlink(public_path('uploads/form/' . $photo));
$file = $request->file('photocard');
$filename = time() . '.' . $file->getClientOriginalExtension();
$file->move('uploads/form/', $filename);
$form->photocard = $filename;
} else {
$form->photocard = $request->old_photo;
}
$form->requirements = $request->addMoreInputFields;
$form->save();
return back()->with('success', 'New subject has been added.');
}