我有一个简单的表单,可以在我的服务器上的表中插入数据。我设置了一个特殊用户来处理这个问题,只有插入权限。我收到连接和语法错误。SQL语法错误,连接问题简单表格PHP
这里是我的形式:
<form id="form1" name="form1" method="post" action="mailform.php" onsubmit="return validateForm();">
<input type="text" id="First" maxlength="100" autocorrect placeholder="First name" />
<input type="text" id="Last" maxlength="100" autocorrect placeholder="Last name" />
<input type="text" id="Email" maxlength="100" autocorrect placeholder="Email address" />
<select name="SalesPerson">
<option value="SP1">SP1</option>
<option value="SP2">SP2</option>
<option value="SP3">SP3</option>
</select>
<select name="Show">
<option value="Show1">Show1</option>
<option value="Show2">Show2</option>
</select>
<button type="submit" id="submit" class="oneup">Submit</button>
</form>
上并且在mailform.php我们:
<?php
$name = "xxx_xxx";
$name = mysql_real_escape_string($name);
$SQL = "SELECT * FROM users WHERE username = '$name'";
$con = mysql_connect("localhost","xxx_xxx","xxxxxxxxx");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("xxx_x", $con);
$sql="INSERT INTO email_signup (First, Last, Email, SalesPerson, Show)
VALUES
('$_POST[First]','$_POST[Last]','$_POST[Email]','$_POST[SalesPerson]','$_POST[Show]')";
if (!mysql_query($sql,$con))
{
die('Error: ' . mysql_error());
}
mysql_close($con)
?>
而这里的错误 -
Warning: mysql_real_escape_string() [<a href='function.mysql-real-escape-string'>function.mysql-real-escape-string</a>]: Access denied for user 'xxx'@'localhost' (using password: NO) in <b>.../mailform.php</b> on line 28
Warning: mysql_real_escape_string() [<a href='function.mysql-real-escape-string'>function.mysql-real-escape-string</a>]: A link to the server could not be established in <b>.../mailform.php</b> on line 28 Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Show) VALUES ('','','','SP1','Show1')' at line 1
任何想法为什么我遇到连接问题?我有一个几乎相同的形式在另一个地方设置,工作得很好。
** WARNING ** - 你的代码是SQL注入攻击非常敏感。 – 2012-02-20 19:41:57
你必须连接到数据库才能使用'mysql_real_escape_string':http://www.php.net/manual/pl/function.mysql-real-escape-string.php看看第一个注释。 – 2012-02-20 19:44:49
@Daneil A. White是的,我还有一些代码可以通过筛选出易受影响的字符来防止这种情况发生。 – blackessej 2012-02-20 19:45:46