I purchased 2 web hosting at godaddy. I have no knowledge about php and my sql. I also purchased 2 domain names for each hosting. I have knowledge about DNS and name servers. But anybody here give me an idea on how to use php and my sql. I just want it simple, I am reading too much now and my head sore. I did this to learn and to create a website myself, not ready to use blogs and sites. My domains are sendym.com and iblogphilippines.com . I can easily understand, but I did too much study about DNS and wordpress the last few days. I am not satisfied with what I have learned about pointing a domain name to google or any other free host. I want to learn what others can. I'll appreciate if you share your knowledge. I know if everything is simple not many will go to school to study theses. But I hope sooner it will become a general knowledge for all. My other question is, what is the longest time that your domain pointed to the new host?
I would suggest picking up a few books on php/mysql if you want to learn how to use it. I can tell you as with anything it takes dedication and is far from simple. By your other question I can guessing you are referring to dns propagation? It can take up to 72 hours but normally is much much faster than that.
PHP and MySQL are great tools in web hosting, but they are just tools, what would you like to use PHP and MySQL for?
As sonique said how to use Php and MySql depends on what you want to use them for. You can choose to learn some thing in particular than studying everything.