function serveFile( $file ){ 	  
 
	    $output = '';	    
 
	    $prep = `cd /Applications/XAMPP/xamppfiles/htdocs/download`;
 
	    $fp = popen('./youtube-dl -c -w '.$file.' 2>&1', "r"); 
 
	    while(!feof($fp)) 
 
	    { 	        
 
	        $myLine = fread($fp, 1024);
 
	        $buffer = $myLine;
 
	        echo $myLine; 	        
 
		$output .= $buffer."...\n";	       	       
 
	    } 
 
	    fclose($fp); 
 
	    return $output;
 
}