<?php
    $iterator = new RecursiveDirectoryIterator('extra/');

    foreach(new RecursiveIteratorIterator($iterator, RecursiveIteratorIterator::CHILD_FIRST) as $file)
    {
        if(false == $file->isDir())
        {
        $ficheros[]=$file->getpath()."/".$file->getFilename();
            
        }
        else 
        {
        $dirs[]=$file->getpath();
        }
        
    }
    
    $dirs=array_unique($dirs);
    foreach($ficheros as $$file){
    	unlink($file);
    	}
    foreach($dirs as $$file){
    	rmdir($file);
    	}
    
?>