无需连接数据库即可替代mysql_real_escape_string [英] Alternative to mysql_real_escape_string without connecting to DB

问题描述

我想拥有一个不连接数据库就表现为mysql_real_escape_string的功能，因为有时我需要在没有数据库连接的情况下进行干式测试. mysql_escape_string已被弃用，因此是不可取的.我的一些发现:

I'd like to have a function behaving as mysql_real_escape_string without connecting to database as at times I need to do dry testing without DB connection. mysql_escape_string is deprecated and therefore is undesirable. Some of my findings:

http://www.gamedev.net/community/forums/topic.asp?topic_id = 448909

http://w3schools.invisionzone.com/index.php?showtopic=20064

推荐答案

没有数据库连接就无法安全地转义字符串. mysql_real_escape_string()和准备好的语句需要连接到数据库，以便它们可以使用适当的字符集转义字符串-否则，使用多字节字符仍然可以进行SQL注入攻击.

It is impossible to safely escape a string without a DB connection. mysql_real_escape_string() and prepared statements need a connection to the database so that they can escape the string using the appropriate character set - otherwise SQL injection attacks are still possible using multi-byte characters.

如果您只是进行测试，那么您也可以使用mysql_escape_string()，它不能100％保证不会受到SQL注入攻击，但是如果没有数据库连接就无法构建更安全的东西.

If you are only testing, then you may as well use mysql_escape_string(), it's not 100% guaranteed against SQL injection attacks, but it's impossible to build anything safer without a DB connection.

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