is it possible that mysql_real_escape_string($str) is empty when $str is not empty
<p>I'm trying to understand whether <code>mysql_real_escape_string($str)</code> can be empty if <code>$str</code> is not empty (by <code>$str</code> is empty I mean that <code>empty($str)</code> is <code>true</code>)?</p>
