If you would like to know from which page the request has come from using post Method then there is a simple PHP script can solve your issue.
Get Current Page URL Using PHP
Check below script to Get Current page using PHP
function getCurrentURLPage()
{
$s = empty($_SERVER["HTTPS"]) ? '': ($_SERVER["HTTPS"] == "on") ? "s" : "";
$protocol = strleft(strtolower($_SERVER["SERVER_PROTOCOL"]), "/").$s;
$port = ($_SERVER["SERVER_PORT"] == "80") ? "" : (":".$_SERVER["SERVER_PORT"]);
return $protocol."://".$_SERVER['SERVER_NAME'].$port.$_SERVER['REQUEST_URI'];
}
echo getCurrentURLPage();

