Call to a member function save() on integer

Question

I'm trying to do a simple save but I get this error.

Call to a member function save() on integer

Here is my code from controller:

foreach ($request['array'] as $key => $value) {

    if(DB::table('users')->where('id',$value)->where('auth',0)->exists() == true){
        $c = DB::table('users')->where('id', $value);
        $c->auth_teacher = '1';
        $c->update();
    }
}

EDIT:

Made changes now I get this:

update() must be of the type array, none given

Answer 1

因为您在此行上将 $c 设置为 1：

       $c = DB::table('users')->where('id', $value)->auth_teacher = 1;

Answer 2

Try this approach

  foreach ($request['array'] as $key => $value) {

    if(DB::table('users')->where('id',$value)->where('auth',0)->exists() == true){
       DB::table('users')->where('id', $value)->update(['auth_teacher' => 1]);
    }

  }