This afternoon, a classmate made me help him to be a "private system", requiring the "User Registration / User Management / Whisper View Delete Add" function. After talked to a meeting, told me to help a girl did, it is said that the mother's mother is always very good to him (I don't know what is the relationship). So I added this girl's QQ, I got to help my classmates, I added this girl, and chat with this girl. As a result, she told me that this thing is not what she wants. She has a classmate of her classroom (part of the graduation topic "(I rely, what kind of school? Graduation topic is also looking for a person, and the function is still as simple !! The market is to get rid of these schools). I was put a way, through 3 people, finally handed this of this arduous task to me. No way, you will be helped by people. In order to seek simple and fast (the better the classmates say, the better "decided to adopt the most oldest way" PHP code and HTML code mixed application ", using" 4.5 hours "to fight, including page design code and test work, However, the page is quite simple. A total of 8 pages were used for 10 PHP files, one of which was previously written Mysql packaging classes, 9 files were existing (this 9 files 442 lines PHP and HTML code). The database adds 2 tables, a user table, a message table implementation, as follows: 1. User registration 2. The background administrator logs in to see the registered user list. 3, delete selected registered users 4. Register users to log in 5, register users to view the list of whisks belong to their own private words 6, send a whisper 7, delete your own whisper is just doing these 7 functions, others did not say, I won't matter . After finishing, I have made things in this ancient "code mix" development method. I'm really fast, and it is relatively simple. This may be PHP and the benefits. I have used a lot of code patterns to do small websites, but the development speed is not as good as this. I have made such a long PHP, I finally discovered: make a small thing in several / more pages, or use "PHP code and HTML mixing" to the fastest way. What "PHP Template", what "PHP XLT", is all connected to the side. What management / maintenance .... These areas are not considered, those are 掰. The hybrid application of PHP code and HTML code is the simplest way to achieve the simple functionality design. Regardless of development speed, it is the easiest and fast.