title: Laravel 5 Migration change length of existed column
body: <p>It not work, I search so many ways, How can I change length of value in laravel 5</p>
  
  <pre><code>public function up()
  {
      Schema::table('articles', function (Blueprint $table) {
          $table-&gt;string('name',50)-&gt;change();
      });
  }
  </code></pre>
  
  <p>Thank you all for reading!</p>