$url = 'en.wikipedia.org%2Fwiki%2F%22Heroes%22'; // it comes in this way from the DB
$tmp = str_replace('%22','"', $url);
$url_input = urldecode($tmp);
echo "<input type=\"text\" value=\"$url_input\" />";
$url = 'en.wikipedia.org%2Fwiki%2F%22Heroes%22'; // it comes in this way from the DB
//$tmp = str_replace('%22','"', $url);
$url_input = htmlspecialchars(urldecode($url));
echo "<input type=\"text\" value=\"$url_input\" />";