授权用户从MySQL数据库

我吮吸PHP，并找不到错误在这里。该脚本从html中获取2个变量“username”和“password”，然后检查它们是否与MySQL数据库相关。当我运行此我得到后续的错误“的查询是空的”授权用户从MySQL数据库

<? 
if ((!$_POST[username]) || (!$_POST[password])) { 
    header("Location: show_login.html"); 
    exit; 
} 
$db_name = "testDB"; 
$table_name = "auth_users"; 
$connection = @mysql_connect("localhost", "admin", "pass") or die(mysql_error()); 
$db = @mysql_select_db($db_name, $connection) or die(mysql_error()); 
$slq = "SELECT * FROM $table_name WHERE username ='$_POST[username]' AND password = password('$_POST[password]')"; 
$result = @mysql_query($sql, $connection) or die(mysql_error()); 
$num = mysql_num_rows($result); 
    if ($num != 0) { 
     $msg = "<p>Congratulations, you're authorised!</p>"; 
    } else { 
     header("Location: show_login.html"); 
     exit; 
    } 
?> 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>Secret Area</title> 
</head> 

<body> 
<? echo "$msg"; ?> 

</body> 
</html>

来源

2010-04-19 Jacksta

你传递给$sqlmysql_query但实际上你存储在查询中$slq

来源

2010-04-19 07:09:57 Matt

+1嘿嘿什么抓!!!! – 2010-04-19 07:12:19

谢谢你！这需要我花3个小时才能挑选出来！ – Jacksta 2010-04-19 07:20:38

授权用户从MySQL数据库

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