Php 我在where子句错误中不断得到一个未知列“Andy”

我已经查看了这个问题，但仍然无法在代码中找到错误。我使用Dreamweaver的自动功能来实现这一点，所以我根本不明白为什么会出现错误

我的login.php页面上的代码是：

    if (!isset($_SESSION)) {
session_start();
}

$loginFormAction = $_SERVER['PHP_SELF'];
if (isset($_GET['accesscheck'])) {
$_SESSION['PrevUrl'] = $_GET['accesscheck'];
}

if (isset($_POST['first'])) {
  $loginUsername=$_POST['first'];
  $password=$_POST['password'];
  $MM_fldUserAuthorization = "";
  $MM_redirectLoginSuccess = "index.php";
  $MM_redirectLoginFailed = "login.php";
  $MM_redirecttoReferrer = false;
  mysql_select_db($database_myStoreConn, $myStoreConn);

  $LoginRS__query=sprintf("SELECT `first`, password FROM `admin` WHERE `first`=%s AND     

password=%s",
 GetSQLValueString($loginUsername, "-1"), GetSQLValueString($password, "text")); 

 $LoginRS = mysql_query($LoginRS__query, $myStoreConn) or die(mysql_error());
 $loginFoundUser = mysql_num_rows($LoginRS);
 if ($loginFoundUser) {
 $loginStrGroup = "";

//declare two session variables and assign them
$_SESSION['MM_Username'] = $loginUsername;
$_SESSION['MM_UserGroup'] = $loginStrGroup;       

if (isset($_SESSION['PrevUrl']) && false) {
  $MM_redirectLoginSuccess = $_SESSION['PrevUrl'];  
}
header("Location: " . $MM_redirectLoginSuccess );
}
else {
header("Location: ". $MM_redirectLoginFailed );
}
}

 $colname_admin = "-1";
if (isset($_SESSION['MM_Username'])) {
  $colname_admin = $_SESSION['MM_Username'];
}
mysql_select_db($database_myStoreConn, $myStoreConn);
$query_admin = sprintf("SELECT * FROM `admin` WHERE `first` = %s",             

GetSQLValueString($colname_admin, "text"));
$admin = mysql_query($query_admin, $myStoreConn) or die(mysql_error());
$row_admin = mysql_fetch_assoc($admin);
$totalRows_admin = mysql_num_rows($admin);

index.php页面上的代码是：

    if (!isset($_SESSION)) {
session_start();
}

$loginFormAction = $_SERVER['PHP_SELF'];
if (isset($_GET['accesscheck'])) {
$_SESSION['PrevUrl'] = $_GET['accesscheck'];
}

if (isset($_POST['first'])) {
  $loginUsername=$_POST['first'];
  $password=$_POST['password'];
  $MM_fldUserAuthorization = "";
  $MM_redirectLoginSuccess = "index.php";
  $MM_redirectLoginFailed = "login.php";
  $MM_redirecttoReferrer = false;
  mysql_select_db($database_myStoreConn, $myStoreConn);

  $LoginRS__query=sprintf("SELECT `first`, password FROM `admin` WHERE `first`=%s AND     

password=%s",
 GetSQLValueString($loginUsername, "-1"), GetSQLValueString($password, "text")); 

 $LoginRS = mysql_query($LoginRS__query, $myStoreConn) or die(mysql_error());
 $loginFoundUser = mysql_num_rows($LoginRS);
 if ($loginFoundUser) {
 $loginStrGroup = "";

//declare two session variables and assign them
$_SESSION['MM_Username'] = $loginUsername;
$_SESSION['MM_UserGroup'] = $loginStrGroup;       

if (isset($_SESSION['PrevUrl']) && false) {
  $MM_redirectLoginSuccess = $_SESSION['PrevUrl'];  
}
header("Location: " . $MM_redirectLoginSuccess );
}
else {
header("Location: ". $MM_redirectLoginFailed );
}
}

 $colname_admin = "-1";
if (isset($_SESSION['MM_Username'])) {
  $colname_admin = $_SESSION['MM_Username'];
}
mysql_select_db($database_myStoreConn, $myStoreConn);
$query_admin = sprintf("SELECT * FROM `admin` WHERE `first` = %s",             

GetSQLValueString($colname_admin, "text"));
$admin = mysql_query($query_admin, $myStoreConn) or die(mysql_error());
$row_admin = mysql_fetch_assoc($admin);
$totalRows_admin = mysql_num_rows($admin);

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有谁能帮我不带猎枪去iMac吗

将以下行更改为：

$LoginRS__query = sprintf("SELECT `first`, password FROM `admin` WHERE `first`=%s AND password=%s", GetSQLValueString($loginUsername, "-1"), GetSQLValueString($password, "text"));

对下列事项：

$LoginRS__query = sprintf("SELECT * FROM `admin` WHERE `first`=%s AND password=%s", GetSQLValueString($loginUsername, "-1"), GetSQLValueString($password, "text"));

---

我认为问题在于where子句中的比较值需要单引号：

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您应该首先让它工作，然后可以扩展此代码

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我想你仍然需要引用它SELECT*FROM admin`WHERE first='%s'meda，它不是已经被引用了吗？你只是在格式化一个字符串，如果你需要引用，然后添加它，我仍然会收到相同的错误。添加引号时你会收到错误吗？