Rename all files in folder
<?php
$dbc = mysql_connect('hostname', 'login', 'password');
if(!$dbc){
die('not connected : ' . mysql_error());
}

$db_selected = mysql_select_db("database", $dbc);
if(!$db_selected){
die("could not connect to DB : " . mysql_error());
}

$username = $_GET['username'];
$image = $_GET['imagename'];

$check = mysql_query("SELECT image FROM members WHERE username='$username'");
$findMem = mysql_num_rows($check);

if($findMem > 0){

while($row = mysql_fetch_array($check) or die(mysql_error())){
$images = $row["image"];
$images = $images - 1;
unlink("./$image");

mysql_query("UPDATE members SET image='$images'
WHERE username='$username'");
}

$path = "$username/default/";


$files = glob("{$path}/{*.jpg,*.jpeg,*.png}", GLOB_BRACE);


function filetime_callback($a, $b)
{
  if (filemtime($a) === filemtime($b)) return 0;
  return filemtime($a) > filemtime($b) ? -1 : 1;
}

// Then sort with usort()
usort($files, "filetime_callback");

}

?>