title: how to alias each column in table where column names store as array
body: <p>My column names are stored in n array like below, where the column names are dynamic:</p>
  
  <p><code>$column1='name,address,contact';</code></p>
  
  <p>I want to alias each element of the array like <code>c.name</code>, <code>c.address</code>, <code>c.contact</code>.
  Is it possible?</p>