Java and .NET has always dominated the enterprise but you’d be surprised at this CNET story that suggests PHP and Perl growing at such an impressive rate:

Overall, we see use of dynamic languages as growing significantly. This is due to several large trends. First, there’s definitely a widespread growth of skills around open source programming languages. There’s also a widespread acceptance of open source in the enterprise that didn’t exist even five to six years ago. And there are various respective inherent advantages of using dynamic languages–speed, flexibility, ease of use for developers, low-cost, and community support, just to name a few–that continue to push usage trends upward.

Now this is perfectly good news for the open source community!