First off, this isn’t meant as a tutorial, but more of a general way of handling various libraries in this situation.

We’ve recently started to use Zend Server CE on our development machines at work.

With the release of Zend Framework 1.9, we wanted to upgrade but still maintain previous versions.

When I download the framework, I prefer to use svn and grab the tag, in this case: http://framework.zend.com/svn/framework/standard/tags/release-1.9.0/

The structure I chose was:

/usr/local/zend/shared/ZendFrameworkSource/<version>

I then created a symbolic link to the version I want and put that in my include_path.

Example: /usr/local/zend/shared/ZendFrameworkLibrary/ -> /usr/local/zend/shared/ZendFrameworkSource/1.9.0/library/

Now with each upgrade, I only update the symbolic link and each application is switched to the new version.

Have a better way? Let me know, I’m always interested in learning.

-Casey