Permmision Denied when i try to open XML files in PHP

Question

<?php
    $fileNames = scandir("www.boston.com");
    foreach ($fileNames as $value) {

        $xml = simplexml_load_file($value);
        echo $xml->reviews->review->text;
    }
?>

I get " simplexml_load_file(.): failed to open stream: Permission denied..." i am using Windows.