php中通过foreach访问多个变量

Question

foreach ($courses as $course, $sections as $section, $example as $example)

有什么方法可以添加2个以上吗？

我只知道2个变量的解。

foreach (array_combine($courses, $sections) as $course => $section)

Answer 1

如果所有数组都有相同的键那么

foreach ($courses as $key => $course)
{
    echo $sections[$key], $example[$key];
}