jQuery ajax引用网址

Question

How can I get the url of the referer in an ajax request?

A file named main.php has jQuery that sends an ajax call to a file named request.php.

Is it possible to somehow figure out the referer when I'm on request.php? To be precise, I want to print the string "main.php" (dynamically) while running request.php.

Answer 1

Normally the the browser will send the referer page using the header Referer as part of the ajax request so you can read it

So you could do something like

$_SERVER['HTTP_REFERER']

• How do you get the 'referer' header in PHP?

---

If you don't want to depend on the default Referer header, pass a custom header of your own

$(document).ajaxSend(function (event, jqXHR) {
    jqXHR.setRequestHeader('my-referer', 'some-value');
});