Ajax interacts with mysql DATA to implement the message board function.

Ajax interacts with mysql DATA to implement the message board function.

Recently, I made a small demo to implement data interaction between Ajax and MySQL. jq is used in js, PHP is used in the background, and mysql is used in the database, A node + MongoDB version will be available later.

I will not talk about the use and installation of mysql. Baidu xampp, Apache server and mysql database are integrated on its own, which is very easy to use.

First, open the server and database. Here, I first created a "eleven" database, and below I created a table called microblog (Note: I am using a high version of mysql here, mysqli _ is used to link php to the database. if the version is too low, use the mysql _ method to modify the code)
The Code section is as follows:

Html page and js section:

<! DOCTYPE html>