douxuzui4590
2014-04-04 00:01
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根据条件将文档根目录内部重定向到另一个文件夹

I currently have the following setup:

*.mysite.com --> /home/public_html/app/index.php

I want to write some code in index.php that changes the whole document root to /home/public_html/app_prev/index.php based on a condition. The reason for this is that I am doing a migration and if they haven't been migrated yet, I want to serve the old version of the code; once they are migrated. Each user has their own database and I will migrate 1 by 1. Normally it would take seconds to migrate all of them, but this release will take awhile to do.

  1. Is this possible?
  2. Is this recommend when making large database schema changes? Will it cause performance problems/errors?
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