PHP 对 GET 参数的保护
好的考虑这个网址:
example.com/single.php?id=21424
很明显，PHP 将获取 ID 并通过 mysql 查询运行它以检索 1 条记录以将其显示在页面上.
It's pretty obvious to you and i that the PHP is going to take the id and run it through a mysql query to retrieve 1 record to display it on the page.
无论如何，是否有一些恶意黑客可能会弄乱这个 url 并对我的应用程序/mysql 数据库构成安全威胁?
Is there anyway some malicious hacker could mess this url up and pose a security threat to my application/mysql DB?
谢谢
推荐答案
当然，永远不要认为用户条目(_GET、_POST、_COOKIE 等)是安全的.
Of course, never ever ever consider a user entry (_GET, _POST, _COOKIE, etc) as safe.
使用 mysql_real_escape_string php 函数来清理你的变量:http://php.net/manual/en/function.mysql-real-escape-string.php
Use mysql_real_escape_string php function to sanitize your variables: http://php.net/manual/en/function.mysql-real-escape-string.php
关于 SQL 注入:http://en.wikipedia.org/wiki/SQL_injection
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