Get current link path of website from PHP

This function will be help you how to get current link path of website from PHP

Source code

<?php
  function getCurrentPageURL() {
    $pageURL = 'http';
 
    if (!empty($_SERVER['HTTPS'])) {
      if ($_SERVER['HTTPS'] == 'on') {
        $pageURL .= "s";
      }
    }
 
    $pageURL .= "://";
 
    if ($_SERVER["SERVER_PORT"] != "80") {
      $pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] 
                                                . $_SERVER["REQUEST_URI"];
    } else {
      $pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
    }
 
    return $pageURL;
  }
?>

Description above function:

Many people have many surprise and don't understand about function and variables
$_SERVER[“SERVER_NAME”], $_SERVER[“SERVER_PORT”]

Please read below comment, you'll be easy to understand it.
Ex I have one link patch same as:

http://sinhvienit.net/@forum/showthread.php?t=2053
http://learn-tech-tips.blogspot.com/2015/10/create-picture-with-light-border.html

When you use $SERVER, we have get some result here

$_SERVER[‘HTTP_HOST’] =>

learn-tech-tips.blogspot.com 

 $_SERVER[‘PHP_SELF’] => 

/2015/10/create-picture-with-light-border.html

$_SERVER[‘REQUEST_TIME’] => Time which client requested - TIME _STAMP

$_SERVER[‘QUERY_STRING’] => t = 2053???

$_SERVER[‘DOCUMENT_ROOT’] => folder contain source code
Ex: /home/learn-tech-tips/public_html

$_SERVER[‘REMOTE_HOST’] = Hostname of user access
$_SERVER[‘REMOTE_PORT’] => Remote Port of Browser connect to server

$_SERVER[‘REQUEST_URI’] =>

2015/10/create-picture-with-light-border.html

$_SERVER[‘SERVER_NAME’] => Name of server (same computer name)
Ex: learn-tech-tips Server

$_SERVER[‘SERVER_ADDR’] => IP of server

$_SERVER[‘REMOTE_ADDR’] => IP of access person

$_SERVER[‘HTTP_USER_AGENT’] => Information with browser of access person

Have a lucky day!
Zidane