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      3. PHP 将用户 ID 传递给 mysql 触发器

        时间:2023-07-15
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                  本文介绍了PHP 将用户 ID 传递给 mysql 触发器的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我需要创建一个日志表,正如预期的那样,我需要存储用户 ID 以及旧的和新的行值.

                  I need to create a log table and as expected I need to store the user id and the old and new row values.

                  问题是我想创建一个触发器来对我执行此操作,但我知道无法将参数发送到触发器.

                  The thing is that I want to create a trigger to do that to me but I know that is not possible to send parameters to triggers.

                  有没有办法做到这一点?

                  Is there a way to do that?

                  在此先感谢您的帮助.

                  推荐答案

                  另一个技巧:你可以使用基于连接的变量 @var.

                  Another hack: you can use connection based variable @var.

                  示例:

                    set @user_id = 321
                    update table .....
                    set @user_id = null;
                  

                  并且在更新触发器中你可以使用这个变量@user_id.

                  and in update trigger you can use this variable @user_id.

                  这篇关于PHP 将用户 ID 传递给 mysql 触发器的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

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