Introduction to PHP development and implementation of download count statistics

This course mainly explains the example of "Number of download statistics". Through this example, I will introduce to friends the implementation idea of ​​"Number of download statistics", as well as what kind of database table to create

and how to implement the code.

In practice, we need to count the number of file downloads. Every time a user downloads a file, the corresponding number of downloads is incremented by 1. Similar applications are used in many download sites

Similar to the picture below:

This example requires readers to have basic knowledge of PHP, Mysql, jQuery, html, css, etc.

Requires creation Database table, used to record file names, file names saved on the file server, and download times

In the example we need to create the test database and downloads table

Assume that data already exists in the download table , these data may be inserted when uploading files in the background in the project, so that we can read them on the page

In order to implement the function, some test data will be inserted into the database

We need to read The table data in the database is output in JSON format and is used to call

on the front-end index.html page. It also responds to the download action and updates the number of file downloads.