How to use PHP to implement an online graduation project topic selection system

With the popularization of college education, graduation project has become a task that every college student must face. Graduation design topic selection is a key step in the entire graduation design process. Choosing the right topic will lay the foundation for the subsequent graduation design process. The traditional method of selecting topics for graduation projects is generally to manually fill in the topic application form, which is inefficient and error-prone. Now, with the development of computer technology, using PHP language to build an online graduation project topic selection system has become a quick solution.

Using PHP language to build an online graduation project topic selection system requires the following steps:

1. Establish a database

First, you need to create a database to store information related to topic selection. . In the MySQL management interface, create a new database named "graduation_design". Then create the following four data tables in the database.

1. announcement: This table is used to save announcement information, including the title, content, release time, etc. of the announcement.
2. teacher: This table is used to save teacher information, including the teacher’s name, professional title, contact information, etc.
3. student: This table is used to save student information, including student name, student number, contact information, etc.
4. topic: This table is used to save topic information, including topic number, name, content, instructor and other information.

2. Build a website

Using PHP language to build a graduation project topic selection system requires the use of programmers' development technology to build a complete website. You can find some template files for graduation project topic selection systems online to use, or you can develop them yourself according to your needs. The Bootstrap framework can be used for rapid design and development during the development process.

1. Website construction: First, build a website framework, including head navigation, sidebar, main content area, etc. These functions can be quickly built using the CSS and JS components provided by the Bootstrap framework. For modules that require user login to access, user permission judgment logic needs to be added.
2. Database connection: In PHP, use PDO to connect to the MySQL database. Use constants to define database connection parameters, as follows:

define('DB_HOST','localhost');
define('DB_USER','root');
define( 'DB_PASS','');
define('DB_NAME','graduation_design');

When connecting to the database, you can use the "try...catch" statement to catch exceptions if the connection fails. , error information can be output, as shown below:

try{

$pdo = new PDO('mysql:host='.DB_HOST.';dbname='.DB_NAME,DB_USER,DB_PASS);

}catch(PDOException $e){

echo '数据库连接错误：'.$e->getMessage();

}

3. Implementation Website functions

1. Student topic application: Students can submit a topic application through the website. They need to fill in the topic name, topic content, instructor and other relevant information and submit it. In PHP, you can use the POST method to obtain the topic selection information submitted by students. If the submission is successful, the relevant topic selection information will be stored in the database.
2. Review by instructors: Instructors can view topic selection applications submitted by students on the website and review them whether they pass or fail. Use PDO to query and modify SQL statements to update students' topic selection status.
3. Students can check the topic selection status: Students can check whether their topic selection has been approved by the instructor. Use PDO to implement SQL query to obtain the topic selection status and display it on the page.
4. Announcement release: Administrators can publish topic selection-related announcements on the website, including graduation project topic selection announcements, advisor announcements, etc.

Summary

Graduation project topic selection is an important process, which is related to the smooth progress of the entire graduation project. The use of an online graduation project topic selection system can reduce human errors, improve topic selection efficiency, and facilitate topic review and understanding of topic selection progress, so it has been widely used. This article introduces the method of using PHP to implement an online graduation project topic selection system. It requires a certain understanding of the basics of PHP programming, but it is not difficult. Through the above introduction, I believe readers can quickly understand and master how to use PHP to implement a graduation project topic selection system.

The above is the detailed content of How to use PHP to implement an online graduation project topic selection system. For more information, please follow other related articles on the PHP Chinese website!