どこが悪いか教えて下さい
<form action=htto://www.test.com/test.php method="post">
選択名<BR>
<select name="num">
<option value="1">1
<option value="2">2
<option value="3">3
</select><BR>
<input type="submit" value="OK">
</form>


test.php

<?php
if ( $_POST["num"] == "1" ) {
header("LOCATION:http://www.test.com/1.html");
}elseif ( $_POST["num"] == "2" ) {
header("LOCATION:http://www.test.com/2.html");
}elseif ( $_POST["num"] == "3" ) {
header("LOCATION:http://www.testcom/3.html");
}else {
header("LOCATION: form.html");
}
?>