coverting existing flash with cakephp website into mobile version

How to convert the existing flash site into mobile version existing site in form of the cakephp frame work. We thought that html ,css,php,javascript may work all mobiles.We dont know exactly. Please tell us how many possible way to develop existing site into mobile version and also need to detect the from which browser the request is coming whether mobile browser or pc browser.

The existing site lin开发者_开发百科k is :This site convert into mobile version

Take a look at this post. PHP is handled on the server. No browser needs to support it. CSS and XHTML are supported pretty well by mobile browsers. Javascript support is limited.