please advice

You can develop dynamic websites using .Net as well. When you say Wordpress, its a framework built over php that gives you a lot of features predefined and control over lot of things. If you really want to learn, I would suggest for wordpress in two of these.

Sir i want to know which technology will be best to learn for me PHP or wordpress i already know the responsive code as well but i want to develop dynamic websites so please suggess me which technology is the best?

What advice do you need?