PHP/MySQL更新代码

Question

我正在尝试从php调用行更新到mysql数据库.它失败但是当我尝试调用插入新行时,它的工作方式相同.

$result = mysql_query("INSERT INTO auth (username, password, studycode, description, server) VALUES ('$username', '$password', '$studycode', '$description', '$server')");

但是这段代码失败了

$result = mysql_query("UPDATE auth SET username='$username', password='$password', studycode='$studycode', description='$description', server='$server' WHERE index='$id' LIMIT 1;");

index是第一列及其表的键/ id.

编辑:好的所以我刚进入mysql管理员并尝试了我的代码将发送的确切命令来跟踪错误.

UPDATE auth SET username='username', password='password', studycode='ab9102y', description='test change', server='server2' WHERE index='5' LIMIT 1;

给了我错误

#1064 - 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 'index='5' LIMIT 1' at line 1 

Answer 1

可能是索引的保留关键字问题.尝试:

$result = mysql_query("UPDATE auth SET username='$username', password='$password', studycode='$studycode', description='$description', server='$server' WHERE `index` ='$id'");