PHP get mail

<?php
$rcv = $_GET['data'];
$user="root";
$password="pass here";
$database="users";
mysql_connect('localhost',$user,$password);
@mysql_select_db($database) or die( "Unable to select database");
$query="SELECT * FROM mail WHERE Reciever='".$rcv."'";
$result=mysql_query($query);
$num=mysql_numrows($result);

mysql_close();

$i = 0;
while ($i < $num) {
echo mysql_result($result,$i,"ID");
echo "µ";
echo mysql_result($result,$i,"Sender");
echo "µ";
echo mysql_result($result,$i,"Message");
$i++;
}
?>