php - isset($var) vs. @$var

Question

Is this an okay practice or an acceptable way to use PHP's error suppressing?

if (isset($_REQUEST['id']) && $_REQUEST['id'] == 6) {
  echo 'hi';
}

if (@$_REQUEST['id'] == 6) {
  echo 'hi';
}

EDIT:
I thought so too. The code (and idea) is from friend.
Thanks for proving me right. :)

Answer 1

Suppressing the errors using @ only suppresses the display of the error, not the creation. So you get a small performance hit from the error if you don't check isset() first.