Get current URL - PHP

function get_current_url($strip = true) {
    // filter function
    static $filter;
    if ($filter == null) {
        $filter = function($input) use($strip) {
            $input = str_ireplace(array(
                "\0", '%00', "\x0a", '%0a', "\x1a", '%1a'), '', urldecode($input));
            if ($strip) {
                $input = strip_tags($input);
            }

            // or any encoding you use instead of utf-8
            $input = htmlspecialchars($input, ENT_QUOTES, 'utf-8'); 

            return trim($input);
        };
    }

    return 'http'. (($_SERVER['SERVER_PORT'] == '443') ? 's' : '')
        .'://'. $_SERVER['SERVER_NAME'] . $filter($_SERVER['REQUEST_URI']);
}

url.php

<?php
static function url(){
    return sprintf(
      "%s://%s%s",
      isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off' ? 'https' : 'http',
      $_SERVER['HTTP_HOST'],
      $_SERVER['REQUEST_URI']
    );
}