title: adding content in the middle of smarty variable
body: <p>how can I modify a smarty variable on tpl file and add some data after certain position without using php? is it possible?</p>
  
  <p>suppose,</p>
  
  <pre><code>$var="this is test content for a variable";
  </code></pre>
  
  <p>and i want to add "EXTRA DATA " after 8th character position so that the final output will be "this is EXTRA DATA test content for a variable"</p>