PHP Determining the current url

Question

I need to modify my function to return also the current folder I am in. Here is my current function:

function getLinkFromHost($url){  
    $port = $_SERVER[\         


        

Answer 1

..........

echo $_SERVER['PHP_SELF']; // return current file

echo __FILE__; // return current file

echo $_SERVER['SCRIPT_NAME']; // return current file

echo dirname(__FILE__); // return current script's folder

// etc