未定义的索引：RegisterController.php中的user_role

Question

i want to save the radio button value to users database. but there is a ERROR:

Undefined index: user_role in RegisterController.php

may i know how to solve this error?

migration:

 Schema::table('users',function(Blueprint $table)
    {
        $table->integer('user_role');

    });

Register controller:

   protected function create(array $data)
{

    return User::create([
        'name' => $data['name'],
        'email' => $data['email'],
        'password' => bcrypt($data['password']),
        'stuID'=> $data['stuID'],
        'user_role'=>$data['user_role'],
    ]);
}

blade file:

  <form class="form-horizontal" role="form" method="POST" action="{{ 
      route('register') }}">
                 {{ csrf_field() }}

 <label for="user_role" class="col-md-4 control-label  ">Role</label>

        <div class="user_role" id="user_role" data-toggle="buttons">
             <label class="btn btn-default user_role">
              <input type="radio" name="user_role" id="lecturer" value="1">
                    <span class="radio-dot"></span>
                      <span class="user_role-word">Lecturer</span>
             </label>

             <label class="btn btn-default user_role">
                <input type="radio" name="user_role" id="student"value="2">
                   <span class="radio-dot"></span>
                     <span class="user_role-word">Student</span>
              </label>
        </div>

Answer 1

If you won't select one of your radio buttons when submitting the form, you won't have $data['user_role'] index in the array. You can prevent this error by making radio buttons required in the form OR check the array for user_role index before use.

return User::create([
        'name' => $data['name'],
        'email' => $data['email'],
        'password' => bcrypt($data['password']),
        'stuID'=> $data['stuID'],
        'user_role'=> isset($data['user_role']) ? $data['user_role'] : null
    ]);