title: unusual error occur in laravel validation
body: <p>In my laravel 4 project i gave a validation like this</p>
  
  <pre><code>'contact_no' =&gt; 'numeric|digits_between:10,10',
  </code></pre>
  
  <p>But this shows error in a weird situation. If I copy and paste the phone number in the field it shows validation error <code>"The contact no must be a number."</code> But when I type the phone number everything is fine.</p>
  
  <p>Did anyone knows why laravel shows this kind of error? and how I can resolve this? 
  <strong>The screen shot is:</strong> </p>
  
  <p><img src="https://i.stack.imgur.com/g7x96.png" alt="enter image description here"></p>