title: variable in variable in php
body: <pre><code>$var="profile['Gamer']['last_name']";
  echo ${$var};
  </code></pre>
  
  <p>Gives </p>
  
  <blockquote>
    <p>Undefined variable: profile['Gamer']['last_name']</p>
  </blockquote>
  
  <p>. But if i try to echo $profile['Gamer']['last_name'] value exist </p>
  
  <p>I have tried echo $$var that too didn't work</p>