The easiest way to get Zend Framework along with a complete PHP stack is by installing Zend Server. Zend Server has native installers for Mac OSX, Windows, Fedora Core, and Ubuntu, as well as a universal installation package compatible with most Linux distributions.

After you have installed Zend Server, the Framework files may be found under /usr/local/zend/share/ZendFramework on Mac OSX and Linux, and C:\Program Files\Zend\ZendServer\share\ZendFramework on Windows. The include_path will already be configured to include Zend Framework.

Alternately, you can Download the latest version of Zend Framework and extract the contents; make a note of where you have done so.

Optionally, you can add the path to the library/ subdirectory of the archive to your php.ini's include_path setting.

That's it! Zend Framework is now installed and ready to use.