I run PHP 5 and My SQL 4.1 on my Mac and I am in middle of building a CMS system. Someone that will be using this small CMS system is running a server with PHP 4.4.2 and MySQL 4.0.27.
As long as I do not use any PHP 5 only functions should I have any problems using the CMS system on their server? My biggest concern is exporting the MySQL 4.1 DB to the older 4.0 version.
