A simple PHP web forum

1. Demand analysis

• Start a new discussion topic by publishing an article

• Post an article to reply to an existing article

• View published articles

• View conversation topics in the forum

• Check the relationship between articles, that is, check which article is a reply to another article

2. Solution

2.1 Forum design

 

2.2 Files used in the web forum application

 

file name	Types of	description
index.php	application	The user enters the home page that the site sees. Include an expandable and deleteable list of all articles in the site
new_post.php	application	Form for publishing new articles
store_new_post.php	application	Save the post entered in the new_post.php form
view_post.php	application	Display a single article and a list of articles that responded to it
treenode_class.php	Function library	Contains the node class, we will use it to show the inheritance relationship of the article
include_fns.php	Function library	Put all other function libraries used in this program together (other library type files are listed here)
data_valid_fns.php	Function library	Data verification function
db_fns.php	Function library	Database connection function
discussion_fns.php	Function library	Functions for handling storage and retrieval of published articles
output_fns.php	Function library	Function to output HTML
create_database.sql	SQL	SQL script of the database needed to establish the program

 

3. Implement the database

 

CREATE DATABASE discussion; #Create forum database USE discussion; #Use forum database CREATE TABLE header #Create data header table (parent INT NOT NULL, # parent article postid poster CHAR(20) NOT NULL, #The author of the article title CHAR( 20) NOT NULL, #The title of the article children INT DEFAULT 0 NOT NULL, #Whether there is a reply to this article, 0 none, 1 yes, default 0 area INT DEFAULT 1 NOT NULL, #Ready for expansion, to achieve multiple forums Multiple sections posted datetime NOT NULL, #The publication time and date of the article postid INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY #The unique ID of each article); CREATE TABLE body #Create a body table (postid INT UNSIGNED NOT NULL PRIMARY KEY , #Each article’s unique ID message text #the body of the article);GRANT SELECT,INSERT,UPDATE,DELETEON discussion.*TO discussion@localhost IDENTIFIED BY'password';

 

4. Implement the source code

Download link:  A simple PHP Web forum