apache_lookup_uri() in php

<?php
echo "<pre>";
$info = apache_lookup_uri('index.php?var=value');
print_r($info);

if (file_exists($info->filename)) {
    echo 'file exists!';
}
?>



output:-

stdClass Object
(
    [status] => 200
    [the_request] => GET /php/s/1 HTTP/1.1
    [method] => GET
    [mtime] => 0
    [clength] => 0
    [chunked] => 0
    [content_type] => text/html
    [handler] => application/x-httpd-php
    [no_cache] => 0
    [no_local_copy] => 1
    [unparsed_uri] => /php/s/index.php?var=value
    [uri] => /php/s/index.php
    [filename] => C:/xampp/htdocs/php/s/index.php
    [args] => var=value
    [allowed] => 0
    [sent_bodyct] => 0
    [bytes_sent] => 0
    [request_time] => 1513669009
)
file exists!