I purchased a new VPS from bluehost they provided me old version of PHP that's not supporting my website and Its been 1 Week bluehost technical support team refused to do that they are making excuses.
My ubuntu version is 12.04.5 LTS
I want to update Apache,MySQL and PHP with their latest version and all dependencies and necessary extensions that are commonly used on website.
I know that some people think that my Question is duplicate of other questions.
I am asking that what I have to do for upgrading Apache, MySQL and PHP for example: I have to remove all these three before upgrading on server ?
My problem is how can i upgrade Apache, MySQL and PHP???
Please explain step by step