Second-hand recycling website developed using PHP supports community sharing function

The second-hand recycling website developed using PHP supports community sharing function

With the improvement of environmental awareness and the reduction of resource waste, second-hand recycling has become a very popular way of consumption. In order to facilitate communication and resource sharing between users, this article will introduce how to use PHP to develop a second-hand recycling website and add community sharing functions to the website.

1. Build the website framework

1. Create database

First, we need to create a database in MySQL to store the website data. You can use the following SQL statement to create a database named "recycle":

CREATE DATABASE recycle;

2. Create data table

After creating After the database, we need to create data tables in the database to store user, product and other information. Here is an example of a user table:

CREATE TABLE user (
id int(11) NOT NULL AUTO_INCREMENT,
username varchar(255) NOT NULL,
password varchar(255) NOT NULL,
email varchar(255) NOT NULL,
PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

3. Build the website framework

After preparing the database, we can start The framework of the website is built. We can do this using PHP frameworks such as Laravel or CodeIgniter. In this article, we will use the CodeIgniter framework.

First, you need to install the CodeIgniter framework in the PHP environment. The source code of the framework can be downloaded locally through the following command:

git clone https://github.com/bcit-ci/CodeIgniter.git

After the download is complete, copy the code folder Name it "recycle" and place it in the website root directory.

Next, we need to set the database connection information in the CodeIgniter configuration file. Open the "application/config/database.php" file and configure the database information in it as follows:

$db['default'] = array(

'dsn'   => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => '',
'database' => 'recycle',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => FALSE,
'db_debug' => (ENVIRONMENT !== 'production'),
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE

);

2. Implement the community sharing function

After completing the construction of the website framework, we can start to implement the community sharing function. The implementation of the community sharing function is mainly divided into two parts: publishing and sharing and browsing and sharing.

1. Publish and share

Users can publish their own sharing content through the website interface. First, we need to create a data table named "share" in the database to store sharing information. Here is an example:

CREATE TABLE share (
id int(11) NOT NULL AUTO_INCREMENT,
user_id int (11) NOT NULL,
title varchar(255) NOT NULL,
content text NOT NULL,
PRIMARY KEY (id ),
FOREIGN KEY (user_id) REFERENCES user(id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

In the website interface, we can collect user sharing information through HTML forms. For example, here is an example of a post share form:

<input type="text" name="title" placeholder="标题" required><br>
<textarea name="content" placeholder="内容" required></textarea><br>
<input type="submit" value="发布">

Then, we can use the following PHP code to handle user submissions:

public function share()
{

$this->load->library('form_validation');

$this->form_validation->set_rules('title', '标题', 'required');
$this->form_validation->set_rules('content', '内容', 'required');

if ($this->form_validation->run()) {
    $share = array(
        'user_id' => $this->session->userdata('user_id'),
        'title' => $this->input->post('title'),
        'content' => $this->input->post('content')
    );

    $this->db->insert('share', $share);
}

redirect('/');

}

2. Browse share

Users can browse the content shared by other users through the website interface. We can display the latest shared content on the homepage and provide a link to view detailed content. Here is an example:

<h2><?php echo $share['title']; ?></h2>
<p><?php echo $share['content']; ?></p>
<a href="/share/<?php echo $share['id']; ?>">查看详细内容</a>

at On the page where you browse the detailed content, we can use the following code to display the shared detailed content:

At this point, We have completed a second-hand recycling website developed using PHP and successfully added community sharing functionality. Users can post their own shared content on the website and browse other users' shared content.

To sum up, we developed a second-hand recycling website using PHP and added a community sharing function to the website. This not only provides a platform for communication and resource sharing between users, but also promotes the spread of environmental awareness and resource recycling.

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