Current request path in PHP

current_request.php

<?php
function url_path(){
  // Base path
  $script_name = isset($_SERVER["SCRIPT_NAME"]) ? $_SERVER["SCRIPT_NAME"] : '';
  $base_path = '';
  if (!empty($script_name)) {
      $base_path = trim(str_replace('\\', '/', dirname($script_name)), '/ ');
  }
  
  // Path
  $path = explode("?", trim(isset($_SERVER["REQUEST_URI"]) ? $_SERVER["REQUEST_URI"] : '', " /"), 2);
  $path = $path[0];
  if (!empty($base_path)) {
      $path = preg_replace("/^" . str_replace('/', '\/', $base_path) . "/", "", $path);
  }
  
  return preg_replace("/^" . preg_quote(basename($script_name)) . "\/?/", "", trim($path, " /"));
}