<?php
echo "<pre>";

$path = "E:/ProgramBack";

function ERGFile($path){
    
    
    $AllFiles = scandir($path);

    foreach($AllFiles as $key=>$file){
        
        if($file == "." || $file == ".."){
            
            continue;
            
        }
        
        if(is_dir($path."/".$file)){
            echo $path."/".$file." -- DIR <br />";
            ERGFile($path."/".$file);
        }else{
            echo $path."/".$file."<br />";
        }
    }    
    

}

ERGFile($path);

?>