title: I want to add a custom attribute to model in laravel
body: <p>I need to add an extra attribute to my laravel model without using get Attribute. i want to get created_at attribute in both default and custom format.</p>
  
  <pre><code>default : created_at : 2018-07-25 15:38:56
  
  second: 10 Days Ago 
  </code></pre>
  
  <p>if i use getCreatedAtAttribute() it changes the default attribute.</p>