[ Thanks to Lee
Schlesinger for this link. ]
“Zend Framework is probably the top corporate choice among these
PHP tools because it is backed by Zend Technologies, which offers
paid support and consulting, along with Zend Framework
certification programs for professionals. These factors, combined
with the software’s enterprise-favorable new BSD license, make
organizations feel comfortable using Zend – though the
framework is also popular among non-corporate users. It has a
strong community that produces a large number of plugins and
extensions. One of ZF’s tag-lines is that it “provides
functionality for the 80% of the application code that is common
across many applications.” One proof of that is that Zend classes
are frequently used outside of the framework and even in other
frameworks.”