I want the the url of the page from which a request has been made. How can I do that in PHP?
The refer(r)er can be found in the $_SERVER
global variable. Please note that sending the refer(r)er is completely optional and a user-agent can simply decide to not send the refer(r)ing url.
$_SERVER['HTTP_REFERER']
$_SERVER['HTTP_REFERER']
The documentations are available here here.
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