how to get current page url in php code example

Example 1: php get full current url

$actual_link = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";

Example 2: how to get the link of the current page in php

<?php  
    if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on')   
         $url = "https://";   
    else  
         $url = "http://";   
    // Append the host(domain name, ip) to the URL.   
    $url.= $_SERVER['HTTP_HOST'];   
    
    // Append the requested resource location to the URL   
    $url.= $_SERVER['REQUEST_URI'];    
      
    echo $url;  
  ?>

Example 3: php current page url

$protocol = strpos(strtolower($_SERVER['SERVER_PROTOCOL']),'https') === FALSE ? 'http' : 'https';
$host     = $_SERVER['HTTP_HOST'];
$script   = $_SERVER['SCRIPT_NAME'];
$params   = $_SERVER['QUERY_STRING'];
 
$currentUrl = $protocol . '://' . $host . $script . '?' . $params;
 
echo $currentUrl;