Flex and php?

Half a year ago, I was worried about the relationship between Flex, Extjs and Php. I feel a little dizzy. Later, I saw all the examples of Flex. I also studied it for a while. Flex's goal is to make programmers develop RIA applications faster and easier (RIA is rich in the Internet and the pages are particularly beautiful). In the multi-tier development model, Flex application belongs to the presentation layer. Flash can completely achieve the effect of flex, so why do you need flex? There are two reasons: 1: In order to cater to more developers. Flash is designed for designers by nature, and its interface and animation concept are incompatible with program developers. 2. In order to attract more programmers such as jsp/asp/php, Macromedia introduced Flex, which is very simple to use. Mxml to describe the interface of jsp/asp/php programmers. (x/d)html is very similar, and mxml is more standardized and standardized. Personally, I think mxml+ActionScript created by FLEX is similar to HTML+Javascript. It's just that Flex's page is more beautiful. PHP and Flex are different to some extent. As for that, the recruitment salary of Flex last time seems to be good. The key is still related to ability. I hope it helps you! -