How to create campus lost property management system source code in PHP

php method to create campus lost property management system source code is: 1. Use a relational database such as MySQL or Mysqlite, set up a table to store lost property and found information; 2. Create PHP connection database code, through PHP such as mysqli and PDO Extension library connects to the database; 3. Use SQL statements to insert lost and found information into the database; 4. Use SELECT statements to query and output relevant data of lost and found information from the database; 5. Set the URL address and page jump function to display Just different pages.

Operating system for this tutorial: Windows 10 system, php8.1.3 version, Dell G3 computer.

Implementing the campus lost and found management system requires the following steps:

1. Design the database structure: Use a relational database such as MySQL or Mysqlite, and set up tables to store lost and found information.

   Here is a minimum feasible data model that defines the needs in the church:

```
USERS TABLE
  id           INT(11) NOT NULL AUTO_INCREMENT,
  username     VARCHAR(45) NOT NULL,
  password     VARCHAR(100) NOT NULL,
  email        VARCHAR(45),
  phone_number VARCHAR(20) DEFAULT NULL,
  date_created TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (id)
ITEMS
  item_id      INT(11) NOT NULL AUTO_INCREMENT,
  description  TEXT NOT NULL,
  status       ENUM('lost', 'found') NOT NULL,
  contact      VARCHAR(255) NOT NULL,
  location     VARCHAR(255),
  category     ENUM('electronics', 'clothing', 'accessories', 'pets', 'books', 'other'),
  photo_path   varchar(255) default null,
  user_id      INT(11),
  date_created TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (item_id)
```

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2. Create PHP connection database code: connect to the database through PHP extension libraries such as mysqli and PDO .

使用mysqli扩展，建立数据库连接并选择数据库，示例代码如下。
```php
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$database = "database_name";
// Create connection
$conn = new mysqli($servername, $username, $password, $database);
```

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3. Write PHP code to insert data: use SQL statements to insert lost or found information into the database.

4. Write PHP code to query data and output data: use the SELECT statement to query and output relevant data of lost and found information from the database.

5. Specify reasonable route(s): Set the URL address and page jump function to display different pages.

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