mysql - 更新时出现“ODBC”@'localhost' 错误

Question

当我尝试更新数据库中的数据时，出现此错误。 这是我的database.php 文件

<?php

 $db_name = "db";
 $db_server = "localhost";
 $db_user = "xxxx";
 $db_pass = "zzzzzzzzz";

 $mysqli = new MySQLi($db_server, $db_user, $db_pass, $db_name)
 or die(mysqli_error());

?>

更新.php

<?php

 require 'database.php';

 $title = mysql_real_escape_string($_POST['title']);
 $id = mysql_real_escape_string($_POST['id']);

 $update_query = "UPDATE photos SET title = '$title' WHERE id='$id'";

 $result = $mysqli->query($update_query) or die(mysqli_error($mysqli));

 if ($result) {
    echo "Success!";
    echo "The title of this photo has been changed to:  <strong>$title</strong>";
 }

?>

错误信息:

Warning: mysql_real_escape_string() [function.mysql-real-escape-string]: Access denied for user 'ODBC'@'localhost' (using password: NO) in C:\wamp\www\myPhotosWebsite\changePhotoTitle.php on line 5

Answer 1

您正在混合过程式调用和面向对象式调用。

尝试:

$title = $mysqli->escape_string(_POST['title']); /* Call as a method */

而不是:

$title = mysql_real_escape_string($_POST['title']);

real_escape_string 需要有效的连接句柄，因为它需要知道连接字符集。

如果将其作为过程调用，则应将连接句柄作为第一个参数传递:

mysql_real_escape_string($connection_handle, $string_to_escape)

或者只是将其作为如上所述的方法调用。

参见mysqli_real_escape_string了解更多详情