Coding is At its place , Yes By Following Some Advanced Rule one can make it more creative and a Creative website Itself a Am-zing factor that Considered in SEO and for business conversions , Suggested by SEO experts ...
While Discussing SEO friendly , The code of a page is not the most important aspect of the page , What place importance is Content and Relevancy of website ...
Not Any Particular language but Suggestions made for PHP Language .. Just make sure the code is as clean and efficient as possible. Use CSS properly ..
Few Common factors In Presenting A Website as Search friendly featured are :
Title Tag
Meta Desc :
Header tags
W3C validation
Simple navigation
Content
Sitemap Info .
Robot.txt management
URL Structure
Fine Inner linking etc....
Thanks