Problem

Whats wrong with this code ?

<?
include(“php.php”);
?>
<form method=“post” action=“view.php?id=<?=$_GET[id]; ?>&_id2=<?=$_GET[id]; ?>&subpage=kommentar”>
Kommentar:( br><textarea name=“answer” rows=“5” cols=“40”></textarea><br>
<input type=“submit” value=“Tilføj”>
</form>
<?php
if ($_GET[‘subpage’] == “answers”) {
$answer = $_REQUEST[“answer”];

mysql_query("INSERT INTO answers(_id, _id2, _username, _answer) values(0, '$_GET[id]', '$answer', '$answer')");

}
?>
<?
$res = mysql_query(“SELECT * FROM answers WHERE _id2=’$_GET[_id2]’ ORDER BY _id DESC”) or die(mysql_error());
while ($row = mysql_fetch_array($res)) {
echo “<hr align=“left” size=“1” width=“100%” color=”#000000">";
echo “<b>$row[_username]</b>”;
echo “<br>”;
echo “$row[_answer]”;
}
?>