请在这里帮助我,我不确定实际错误是什么意思,但我正在寻找任何方法来完成这项工作!请!
    <?php 
//session_start();
include("config.php");
include("auth.php"); 
if($_SESSION['SESS_MEMBER_ID'] != 'true') {
//  header("location:member-index.php");
    }
//connects to database
$link = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
if (!$link) {
    die("Failed to connect to server: " . mysql_error());
    }
    //selects database
$db = mysql_select_db(DB_DATABASE);
if (!$db) {
    die ("Unable to select database");
    }
这是错误所在
$qry = "UPDATE members set firstname="'.$firstname.'", lastname="'.$lastname.'", location="'.$location.'", email="'.$email.'", cell_number="'.$cell_number.'", home_number="'.$home_number.'", about="'.$about.'" where member_id="'.$_SESSION['SESS_MEMBER_ID'].'" "
$result = @mysql_query($qry);
?>