Server Document Root Path in PHP [closed]

Question

I have a php code line like below

$files = glob('myFolder/*'); 

I want to use absolute path to myFolder in above by using server document root, like below

$_SERVER["DOCUMENT_ROOT"]."/myFolder/" 

It should be like below

$files = glob('$_SERVER["DOCUMENT_ROOT"]."/myFolder/*"'); 

But this is not working

How to correct this?

Actually I am trying to do this:

<?php //Delete All files from folder // $files = glob('myFolder/*');  $files = glob($_SERVER["DOCUMENT_ROOT"]."/myFolder/*");  foreach($files as $file){ if(is_file($file)) unlink($file); }  ?> 

Code below is working

$files = glob('myFolder/*'); 

This below is not working

$files = glob($_SERVER["DOCUMENT_ROOT"]."/myFolder/*"); 

I want to use absolute path to myFolder

Answer 1

$files = glob($_SERVER["DOCUMENT_ROOT"]."/myFolder/*");