如何从一个链接重定向到另一个？

Question

如果我在这个链接website.com/index.php?id=19我希望如果你尝试删除?id=..所以链接只是website.com/index.php用户将被重定向到website.com/index.php?id=..我该怎么做？

Answer 1

Use header and $_GET - for example:

if (!isset($_GET['id']) || empty($_GET['id'])) {
   header('Location: /index.php?id=155');
   exit();
}

Where 155 is whatever you want there to be.

Answer 2

You can try like this

if(!isset($_GET['id']))
{
   header('location:index.php?id=here is your id value');
   exit;
}