PHP for the enterprise
PHP5: Ready For The Enterprise? (via Scott) discusses forthcoming improvements in PHP5 and asks if they will lead to acceptance of PHP as a suitable language for enterprise applications. It looks like a killer factor could well be PHP’s improved Java and .NET integration abilities. Write the back-end in Java/.NET and use PHP for the front end—that way you get a powerful web-specific scripting language for the front end of your site. Then if you ever need to change technologies on the back end your front end code can be reused.