用PHP重定向到上一页的最简单方法是什么？

Question

I'm using a form to submit some post information to a PHP script. After the script finishes, I want it to redirect right back to the page the user came from. Right now I'm just using header() with a static URL. I've found a ton of very conflicting information about this around the internet, so I'm wondering what StackOverflow thinks.

Answer 1

使用HTTP_REFERER ：

header('Location: ' . $_SERVER['HTTP_REFERER']);

Answer 2

access the $_SERVER['HTTP_REFERER'] variable and redirect to this. Should do the trick.

Answer 3

the way i would do it is use a session variable to store the current page URL everytime it is accessed.

$_SESSION['last_url'] = <get current url>

replace your static url in the header with $_SESSION['last_url']. Depending on how you implement your PHP, you can use search google for "current url php" or just $_SERVER['REQUEST_URI'] (stackoverflow doesnt allow me to put more than 1 link!)

Answer 4

使用REQUEST_URI，但要注意该斜杠/