title: Validate very long text
body: <p>I have a table with description column. Description has a datatype text (but I tried to change to longText type into phpmyadmin). I have a validation rule too:</p>
  
  <pre><code>   public function rules()
      {
          return [
              'title' =&gt; 'required|string|between:6,50',
              'city' =&gt; 'required|integer|exists:cities,id',
              'phone' =&gt; 'required_without:mail|digits:9',
              'mail' =&gt; 'nullable|required_without:phone|email',
              'description' =&gt; 'required|string|between:30,600',
              'file' =&gt; 'nullable|mimes:jpeg,jpg,png|max:3000'
          ];
      }
  </code></pre>
  
  <p>And it works but the problem is that if I write a very long text, I don't receive any error instead just refresh only. I had the same with other controllers method. How I can I solve my problem?</p>