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

Question

I want the URL of the page from which the request was made. How can I do this in PHP?

Answer 1

Reference (r) er can be found in a global variable $_SERVER. Note that sending the (r) er link is completely optional, and the user agent may simply decide not to send the (r) ing link.

$_SERVER['HTTP_REFERER']

Answer 2

$_SERVER['HTTP_REFERER']

Documentation is available here .