title: How to make default value null in laravel
body: <p>I'm making register form in laravel, first I create the migration </p>
  
  <pre><code>&lt;?php
  
  use Illuminate\Support\Facades\Schema;
  use Illuminate\Database\Schema\Blueprint;
  use Illuminate\Database\Migrations\Migration;
  
  class CreateUsersTable extends Migration
  {
      /**
       * Run the migrations.
       *
       * @return void
       */
      public function up()
      {
          Schema::create('users', function (Blueprint $table) {
              $table-&gt;increments('id');
              $table-&gt;string('name');
              $table-&gt;string('first_name');
              $table-&gt;string('last_name');
              $table-&gt;string('email')-&gt;unique();
              $table-&gt;string('password');
              $table-&gt;rememberToken();
              $table-&gt;timestamps();
          });
      }
  
      /**
       * Reverse the migrations.
       *
       * @return void
       */
      public function down()
      {
          Schema::drop('users');
      }
  }
  </code></pre>
  
  <p>I want first to register name, email and password without first_name and last_name, but when I click register it gives me error that first_name and last_name don't have default values..so how to make default values null, because I want to update that columns later.</p>