随着信息技术的发展，越来越多的高校开始采用信息化手段来管理日常教学活动，其中排课表软件的应用尤为广泛。本文将介绍如何使用PHP语言开发一款适用于高校的排课表软件。

需求分析

高校排课表软件的主要功能包括教师信息管理、课程信息管理、教室信息管理以及排课表生成等。系统需要能够根据教师、课程、教室的信息自动生成一个合理的课表。

数据库设计

为了满足上述功能需求，我们设计了如下的数据库结构：

            CREATE TABLE teachers (
                id INT AUTO_INCREMENT PRIMARY KEY,
                name VARCHAR(255) NOT NULL,
                department VARCHAR(255)
            );
            
            CREATE TABLE courses (
                id INT AUTO_INCREMENT PRIMARY KEY,
                name VARCHAR(255) NOT NULL,
                teacher_id INT,
                FOREIGN KEY (teacher_id) REFERENCES teachers(id)
            );
            
            CREATE TABLE classrooms (
                id INT AUTO_INCREMENT PRIMARY KEY,
                name VARCHAR(255) NOT NULL,
                capacity INT
            );
            
            CREATE TABLE schedules (
                id INT AUTO_INCREMENT PRIMARY KEY,
                course_id INT,
                classroom_id INT,
                day ENUM('Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'),
                time_slot TIME,
                FOREIGN KEY (course_id) REFERENCES courses(id),
                FOREIGN KEY (classroom_id) REFERENCES classrooms(id)
            );
        

PHP代码示例

以下是一个简单的PHP脚本，用于从数据库中查询并显示所有课程的排课情况：

            <?php
            $host = 'localhost';
            $db   = 'school_schedule';
            $user = 'root';
            $pass = '';
            $charset = 'utf8mb4';

            $dsn = "mysql:host=$host;dbname=$db;charset=$charset";
            $options = [
                PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
                PDO::ATTR_EMULATE_PREPARES => false,
            ];

            try {
                $pdo = new PDO($dsn, $user, $pass, $options);
                $stmt = $pdo->query("SELECT c.name AS course_name, t.name AS teacher_name, r.name AS room_name, s.day, s.time_slot FROM schedules s JOIN courses c ON s.course_id = c.id JOIN teachers t ON c.teacher_id = t.id JOIN classrooms r ON s.classroom_id = r.id");
                while ($row = $stmt->fetch()) {
                    echo "课程: {$row['course_name']}, 教师: {$row['teacher_name']}, 教室: {$row['room_name']}, 时间: {$row['day']} {$row['time_slot']}
";
                }
            } catch (\PDOException $e) {
                throw new \PDOException($e->getMessage(), (int)$e->getCode());
            }
            ?>