Sometimes, you might want to get the current full URL in PHP. Here is how you do that.

Add the following code to a page:

function selfURL(){
if(!isset($_SERVER['REQUEST_URI'])){
$serverrequri = $_SERVER['PHP_SELF'];
}else{
$serverrequri =    $_SERVER['REQUEST_URI'];
}
$s = empty($_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'].$port.$serverrequri;
}
function strleft($s1, $s2) {
return substr($s1, 0, strpos($s1, $s2));
}

You can now get the full URL using the line:

print(selfURL());

NOTE: This function works with Apache + IIS