php自动排课算法代码

以下是一个 PHP 自动排课算法的示例代码：

<?php

// 设置需要排课的时间段和课程
$timeslots = [
    ['start' => '08:00', 'end' => '09:00'],
    ['start' => '09:00', 'end' => '10:00'],
    ['start' => '10:00', 'end' => '11:00'],
    ['start' => '11:00', 'end' => '12:00'],
    ['start' => '13:00', 'end' => '14:00'],
    ['start' => '14:00', 'end' => '15:00'],
    ['start' => '15:00', 'end' => '16:00'],
    ['start' => '16:00', 'end' => '17:00']
];
$courses = [
    'Course 1' => ['duration' => 2],
    'Course 2' => ['duration' => 1],
    'Course 3' => ['duration' => 1],
    'Course 4' => ['duration' => 2],
    'Course 5' => ['duration' => 1]
];

// 初始化排课表
$schedule = [];
foreach ($timeslots as $timeslot) {
    $schedule[$timeslot['start']] = [];
}

// 遍历课程，将其插入到排课表中
foreach ($courses as $course => $details) {
    $duration = $details['duration'];
    $scheduled = false;
    foreach ($timeslots as $timeslot) {
        $start = $timeslot['start'];
        if (!$scheduled && count($schedule[$start]) == 0) {
            $end = $timeslot['end'];
            $schedule[$start][] = $course;
            $scheduled = true;
            for ($i = 1; $i < $duration; $i++) {
                $next = $timeslots[array_search($timeslot, $timeslots) + $i]['start'];
                $schedule[$next][] = $course;
            }
        }
    }
}

// 输出排课表
foreach ($schedule as $time => $courses) {
    echo $time . ' - ' . $timeslots[array_search(['start' => $time, 'end' => ''], $timeslots)]['end'] . ': ';
    echo implode(', ', $courses) . "\n";
}

这个算法将会自动将课程安排到可用的时间段中，并输出最终的排课表。在这个示例代码中，我们使用了一些硬编码的时间段和课程，你需要根据自己的需求进行修改。