Display-as a college student it programming, the current main focus on PHP, should see which books help their ability to improve?

PHP Display Project Experience

Study PHP a year, project experience, and participated in several school competitions, responsible for the background, in the process of writing, encountered these problems, a lot of knowledge points can achieve the same function, it is not possible to use which knowledge points to achieve! For example, the session and the cookie, for example, was not very likely to use cookies, so in the implementation of the user login module, the entire session, you can also make user information display. So, I have doubts, since the session, the cookie can achieve the same function, it is to use session or cookie? Check the information, the relationship between the two to see is understand not understand! In this, I hope that Daniel can recommend some of the project on the practical aspects of books, in order to help younger brother in the ideological quality of improvement!

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