Laravel sum relationship column

Laravel eloquent sum column

Product::where('id',$id)->sum('quantity');

Laravel sum relationship column

Auth::user()->products->sum('price');

Source: stackoverflow.com

Laravel sum column values

Auth::user()->products->sum('price');
// And on your App/User.php you need someting like this:public function products(){ return Products::where('id_buyer', Auth::user()->id)->get();}

Sum row data and get all data eloquent laravel

$balance = DB::table('data')->where('user_id' '=' $id)->sum('balance');

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