Mappen scheiden van de bestanden. (Opgelost)

<?php
$maindir = "img/";
$folder = opendir($maindir);

while (false !== ($file = readdir($folder))) 
{
	if($file !== '.' && $file !== '..')
	{
		echo $file . "<br />";
	}
}
?>

<?php
$maindir = "img/";
$folder = opendir($maindir);
 
while (false !== ($file = readdir($folder))) 
{
	if($file !== '.' && $file !== '..')
	{
		echo $file . "<br />";
	}
}
?>

if( ($file !== '.' && $file != '..') && !is_dir($file) )
{
  echo $file.'<br />';
}

if( ($file !== '.' && $file != '..') && !is_dir($file) )
{
  echo $file.'<br />';
}