อยากให้ value="[email protected]" รันเป็น value="[email protected]" value="[email protected]"

<?php
session_start();
$n = 0;
$emails = array("[email protected]","[email protected]","[email protected]");

if (!isset($_SESSION['num']))
{
    $_SESSION['num'] = $n;
}else{
    $n = $_SESSION['num'];
    $n = $n+1;
    if($n >= count($emails))
    {
	$n = 0;
    }
    $_SESSION['num'] = $n;
}

$mail = $emails[$n];
?>
<input name="sender" class="email" type="text" id="sender" value="<?php echo $mail;?>" />