QUESTION: What is it for? How to implement the code?
This code is default code from main_view.php EVENT=(ViewOnLoad)
$_SESSION["message"]= 'http';
if ($_SERVER["HTTPS"] == "on") {$_SESSION["message"] .= "s";}
$_SESSION["message"] .= "://";
if ($_SERVER["SERVER_PORT"] != "80") {
$_SESSION["message"] .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
} else {
$_SESSION["message"] .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
}