使用curl获得价值后,附加1会附加,但为什么呢？

balance.PHP

<?PHP
$url = "http://localhost/sms/app/user_balance.PHP";
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_POST,2);
curl_setopt($ch,CURLOPT_POSTFIELDS,"id=2&amp;status=Y");
$result = curl_exec($ch);
curl_close($ch);
echo $result;
?>

user_balance.PHP

<?PHP
$conn = MysqL_connect("localhost","root","");
MysqL_select_db("sms",$conn);
$user_id = $_REQUEST["id"];
$sql = "SELECT * From user_sms WHERE user_id='$user_id'";
$rec = MysqL_query($sql);
if($row = MysqL_fetch_array($rec)) {
    $balance = $row["user_sms_balance"];
}
echo "(".$balance.")";
?>