Platform Independent DIRECTORY_ SEPERATOR constant in php

directory_sperator.php

<?php
function TestPath()
{
    return __DIR__.DIRECTORY_SEPARATOR."somefile.php";
}
var_dump(TestPath());
/*
*   it will return something like string 'C:\xampp\htdocs\LibComponent\Multimedia\somefile.php' (length=58) 
*   In this case DIRECTORY_SEPERATOR constant is "\" if I want to require somefile.php then this type of path will not work  
*   but to make it work I need C:/xampp/htdocs/LibComponent/Multimedia/somefile.php 
*/
?>