Can't help with the PHP part, but something similar to your second question was discussed in this thread. It addresses the question why Java-based sites are a lot more prevalent than sites using ".jsp" page extensions.
posted 12 years ago
Thanks Ulf for your reply. Actually I was looking more for links to web sites, web applications built with JSP. For example: www.xerox.com www.ebay.com
As I need to see sample of web sites done using this technology...so if you happen to know any web site(s) which were built using JSP please let me know about them.
Michael, Please don't post the same question in multiple forums. It makes it harder to follow the conversation. Since you post in our JSP forum is already in the more relevant forum, I'll close this one. Please continue conversation there.